301 Area Code in Maryland, United States

Description

Area code 301 serves western and southern Maryland, including cities such as Frederick, Hagerstown, Waldorf, and parts of the Washington, D.C. suburbs. It is one of the original area codes created in 1947 and originally served the entire state. In 1991, the eastern portion of the state was split off to form 410, and in 1997, overlay 240 was introduced to cover the 301 region. The area includes both rural landscapes and fast-growing suburban corridors. With proximity to Washington, D.C., 301 is associated with federal agencies, defense contractors, and commuters. It remains a widely recognized and historically significant area code in Maryland.

Time & Time Zone

Time zone:

Eastern (GMT -05:00)

Current time:

Map

Major Cities

City	Prefixes
Rockville	(301) 208 , (301) 212 , (301) 213 , (301) 214 , (301) 216 , (301) 217 , (301) 230 , (301) 231 , (301) 240 , (301) 242 , (301) 251 , (301) 254 , (301) 255 , (301) 258 , (301) 260 , (301) 279 , (301) 287 , (301) 288 , (301) 294 , (301) 295 , (301) 296 , (301) 309 , (301) 314 , (301) 315 , (301) 319 , (301) 321 , (301) 330 , (301) 332 , (301) 340 , (301) 354 , (301) 370 , (301) 382 , (301) 398 , (301) 402 , (301) 413 , (301) 415 , (301) 417 , (301) 424 , (301) 435 , (301) 442 , (301) 443 , (301) 452 , (301) 460 , (301) 461 , (301) 465 , (301) 466 , (301) 468 , (301) 489 , (301) 493 , (301) 496 , (301) 517 , (301) 518 , (301) 519 , (301) 522 , (301) 527 , (301) 529 , (301) 530 , (301) 537 , (301) 538 , (301) 544 , (301) 545 , (301) 548 , (301) 556 , (301) 564 , (301) 570 , (301) 571 , (301) 581 , (301) 584 , (301) 590 , (301) 594 , (301) 603 , (301) 610 , (301) 670 , (301) 677 , (301) 679 , (301) 721 , (301) 728 , (301) 738 , (301) 762 , (301) 768 , (301) 770 , (301) 774 , (301) 795 , (301) 803 , (301) 816 , (301) 825 , (301) 827 , (301) 838 , (301) 840 , (301) 869 , (301) 871 , (301) 881 , (301) 896 , (301) 897 , (301) 921 , (301) 924 , (301) 926 , (301) 929 , (301) 933 , (301) 942 , (301) 944 , (301) 945 , (301) 946 , (301) 947 , (301) 948 , (301) 949 , (301) 956 , (301) 962 , (301) 963 , (301) 966 , (301) 975 , (301) 977 , (301) 978 , (301) 984 , (301) 987 , (301) 990 , (301) 998
Silver Spring	(301) 227 , (301) 233 , (301) 236 , (301) 237 , (301) 252 , (301) 254 , (301) 257 , (301) 260 , (301) 273 , (301) 282 , (301) 285 , (301) 295 , (301) 325 , (301) 326 , (301) 328 , (301) 332 , (301) 348 , (301) 357 , (301) 367 , (301) 370 , (301) 379 , (301) 384 , (301) 388 , (301) 404 , (301) 405 , (301) 408 , (301) 419 , (301) 421 , (301) 427 , (301) 431 , (301) 434 , (301) 438 , (301) 439 , (301) 445 , (301) 448 , (301) 455 , (301) 460 , (301) 461 , (301) 466 , (301) 476 , (301) 495 , (301) 502 , (301) 510 , (301) 512 , (301) 517 , (301) 523 , (301) 526 , (301) 529 , (301) 537 , (301) 551 , (301) 561 , (301) 562 , (301) 563 , (301) 565 , (301) 572 , (301) 576 , (301) 578 , (301) 584 , (301) 585 , (301) 586 , (301) 587 , (301) 588 , (301) 589 , (301) 592 , (301) 593 , (301) 598 , (301) 603 , (301) 608 , (301) 618 , (301) 622 , (301) 625 , (301) 626 , (301) 628 , (301) 641 , (301) 648 , (301) 649 , (301) 650 , (301) 679 , (301) 680 , (301) 681 , (301) 692 , (301) 701 , (301) 704 , (301) 713 , (301) 754 , (301) 755 , (301) 761 , (301) 787 , (301) 792 , (301) 801 , (301) 819 , (301) 827 , (301) 830 , (301) 847 , (301) 871 , (301) 879 , (301) 890 , (301) 905 , (301) 920 , (301) 924 , (301) 929 , (301) 933 , (301) 938 , (301) 939 , (301) 940 , (301) 942 , (301) 943 , (301) 946 , (301) 949 , (301) 960 , (301) 962 , (301) 966 , (301) 989 , (301) 992 , (301) 998
Bethesda	(301) 202 , (301) 204 , (301) 214 , (301) 215 , (301) 219 , (301) 222 , (301) 224 , (301) 227 , (301) 229 , (301) 243 , (301) 263 , (301) 272 , (301) 280 , (301) 284 , (301) 295 , (301) 296 , (301) 300 , (301) 305 , (301) 312 , (301) 318 , (301) 319 , (301) 320 , (301) 347 , (301) 348 , (301) 365 , (301) 380 , (301) 400 , (301) 402 , (301) 433 , (301) 435 , (301) 442 , (301) 443 , (301) 452 , (301) 455 , (301) 469 , (301) 480 , (301) 492 , (301) 493 , (301) 496 , (301) 500 , (301) 504 , (301) 517 , (301) 520 , (301) 529 , (301) 530 , (301) 534 , (301) 551 , (301) 554 , (301) 564 , (301) 571 , (301) 581 , (301) 594 , (301) 634 , (301) 646 , (301) 652 , (301) 654 , (301) 656 , (301) 657 , (301) 661 , (301) 664 , (301) 674 , (301) 692 , (301) 717 , (301) 718 , (301) 760 , (301) 761 , (301) 767 , (301) 792 , (301) 803 , (301) 807 , (301) 813 , (301) 814 , (301) 827 , (301) 828 , (301) 896 , (301) 897 , (301) 906 , (301) 907 , (301) 910 , (301) 913 , (301) 928 , (301) 939 , (301) 941 , (301) 943 , (301) 951 , (301) 960 , (301) 961 , (301) 968 , (301) 981 , (301) 986
Gaithersburg	(301) 208 , (301) 212 , (301) 216 , (301) 217 , (301) 240 , (301) 250 , (301) 251 , (301) 253 , (301) 257 , (301) 258 , (301) 279 , (301) 294 , (301) 296 , (301) 309 , (301) 315 , (301) 325 , (301) 330 , (301) 337 , (301) 340 , (301) 351 , (301) 353 , (301) 355 , (301) 368 , (301) 391 , (301) 414 , (301) 417 , (301) 424 , (301) 428 , (301) 482 , (301) 517 , (301) 519 , (301) 523 , (301) 525 , (301) 527 , (301) 545 , (301) 548 , (301) 569 , (301) 590 , (301) 591 , (301) 610 , (301) 633 , (301) 640 , (301) 642 , (301) 655 , (301) 670 , (301) 674 , (301) 707 , (301) 721 , (301) 738 , (301) 740 , (301) 744 , (301) 762 , (301) 785 , (301) 806 , (301) 818 , (301) 820 , (301) 838 , (301) 840 , (301) 869 , (301) 921 , (301) 924 , (301) 926 , (301) 944 , (301) 947 , (301) 948 , (301) 963 , (301) 973 , (301) 975 , (301) 977 , (301) 978 , (301) 979 , (301) 987 , (301) 990 , (301) 998
Hyattsville	(301) 209 , (301) 220 , (301) 222 , (301) 226 , (301) 270 , (301) 276 , (301) 277 , (301) 291 , (301) 303 , (301) 306 , (301) 322 , (301) 324 , (301) 332 , (301) 333 , (301) 336 , (301) 341 , (301) 345 , (301) 350 , (301) 361 , (301) 386 , (301) 394 , (301) 403 , (301) 404 , (301) 408 , (301) 422 , (301) 429 , (301) 431 , (301) 434 , (301) 436 , (301) 439 , (301) 441 , (301) 445 , (301) 446 , (301) 448 , (301) 452 , (301) 454 , (301) 458 , (301) 459 , (301) 474 , (301) 484 , (301) 486 , (301) 499 , (301) 523 , (301) 552 , (301) 559 , (301) 577 , (301) 583 , (301) 595 , (301) 614 , (301) 618 , (301) 636 , (301) 644 , (301) 699 , (301) 731 , (301) 772 , (301) 773 , (301) 779 , (301) 792 , (301) 806 , (301) 808 , (301) 853 , (301) 864 , (301) 883 , (301) 887 , (301) 891 , (301) 909 , (301) 918 , (301) 925 , (301) 927 , (301) 931 , (301) 937 , (301) 982 , (301) 985
Upper Marlboro	(301) 218 , (301) 249 , (301) 298 , (301) 322 , (301) 324 , (301) 327 , (301) 332 , (301) 333 , (301) 336 , (301) 341 , (301) 343 , (301) 350 , (301) 358 , (301) 372 , (301) 386 , (301) 390 , (301) 420 , (301) 452 , (301) 499 , (301) 568 , (301) 574 , (301) 579 , (301) 583 , (301) 599 , (301) 618 , (301) 627 , (301) 636 , (301) 641 , (301) 669 , (301) 715 , (301) 728 , (301) 735 , (301) 736 , (301) 772 , (301) 773 , (301) 780 , (301) 782 , (301) 807 , (301) 808 , (301) 817 , (301) 856 , (301) 868 , (301) 877 , (301) 883 , (301) 888 , (301) 908 , (301) 919 , (301) 925 , (301) 952 , (301) 967 , (301) 996
Laurel	(301) 206 , (301) 210 , (301) 221 , (301) 237 , (301) 317 , (301) 323 , (301) 332 , (301) 343 , (301) 346 , (301) 347 , (301) 356 , (301) 362 , (301) 369 , (301) 376 , (301) 377 , (301) 389 , (301) 395 , (301) 419 , (301) 425 , (301) 437 , (301) 440 , (301) 470 , (301) 483 , (301) 490 , (301) 497 , (301) 498 , (301) 537 , (301) 543 , (301) 549 , (301) 566 , (301) 602 , (301) 604 , (301) 613 , (301) 617 , (301) 647 , (301) 706 , (301) 716 , (301) 725 , (301) 741 , (301) 756 , (301) 776 , (301) 793 , (301) 875 , (301) 886 , (301) 902 , (301) 939 , (301) 953 , (301) 957 , (301) 974 , (301) 996
Chevy Chase	(301) 204 , (301) 215 , (301) 219 , (301) 280 , (301) 289 , (301) 312 , (301) 318 , (301) 455 , (301) 480 , (301) 492 , (301) 495 , (301) 503 , (301) 509 , (301) 523 , (301) 534 , (301) 554 , (301) 562 , (301) 563 , (301) 565 , (301) 578 , (301) 585 , (301) 587 , (301) 588 , (301) 589 , (301) 608 , (301) 634 , (301) 646 , (301) 650 , (301) 652 , (301) 654 , (301) 656 , (301) 657 , (301) 664 , (301) 718 , (301) 771 , (301) 813 , (301) 814 , (301) 822 , (301) 841 , (301) 901 , (301) 906 , (301) 907 , (301) 910 , (301) 913 , (301) 941 , (301) 951 , (301) 961 , (301) 968 , (301) 986
Frederick	(301) 213 , (301) 228 , (301) 293 , (301) 304 , (301) 305 , (301) 360 , (301) 370 , (301) 371 , (301) 378 , (301) 385 , (301) 418 , (301) 435 , (301) 465 , (301) 471 , (301) 473 , (301) 514 , (301) 524 , (301) 600 , (301) 606 , (301) 607 , (301) 619 , (301) 620 , (301) 624 , (301) 631 , (301) 633 , (301) 639 , (301) 644 , (301) 662 , (301) 663 , (301) 668 , (301) 673 , (301) 682 , (301) 688 , (301) 693 , (301) 694 , (301) 695 , (301) 696 , (301) 698 , (301) 712 , (301) 748 , (301) 788 , (301) 815 , (301) 831 , (301) 846 , (301) 874 , (301) 898 , (301) 980
College Park	(301) 209 , (301) 220 , (301) 267 , (301) 277 , (301) 308 , (301) 313 , (301) 314 , (301) 345 , (301) 361 , (301) 377 , (301) 403 , (301) 405 , (301) 441 , (301) 446 , (301) 454 , (301) 474 , (301) 477 , (301) 486 , (301) 489 , (301) 506 , (301) 507 , (301) 513 , (301) 614 , (301) 615 , (301) 623 , (301) 675 , (301) 699 , (301) 708 , (301) 709 , (301) 713 , (301) 779 , (301) 837 , (301) 852 , (301) 864 , (301) 887 , (301) 901 , (301) 914 , (301) 927 , (301) 931 , (301) 935 , (301) 981 , (301) 982 , (301) 985 , (301) 993 , (301) 996
Bowie	(301) 210 , (301) 213 , (301) 218 , (301) 249 , (301) 262 , (301) 282 , (301) 306 , (301) 324 , (301) 332 , (301) 333 , (301) 336 , (301) 350 , (301) 352 , (301) 366 , (301) 390 , (301) 429 , (301) 430 , (301) 440 , (301) 451 , (301) 456 , (301) 459 , (301) 464 , (301) 467 , (301) 499 , (301) 577 , (301) 580 , (301) 629 , (301) 636 , (301) 647 , (301) 666 , (301) 731 , (301) 805 , (301) 808 , (301) 809 , (301) 833 , (301) 850 , (301) 860 , (301) 867 , (301) 883 , (301) 918 , (301) 922 , (301) 925
Potomac	(301) 212 , (301) 217 , (301) 251 , (301) 255 , (301) 258 , (301) 279 , (301) 294 , (301) 299 , (301) 309 , (301) 315 , (301) 331 , (301) 340 , (301) 354 , (301) 365 , (301) 406 , (301) 424 , (301) 442 , (301) 469 , (301) 517 , (301) 518 , (301) 545 , (301) 590 , (301) 610 , (301) 670 , (301) 738 , (301) 742 , (301) 762 , (301) 765 , (301) 767 , (301) 775 , (301) 838 , (301) 840 , (301) 921 , (301) 922 , (301) 948 , (301) 975 , (301) 978 , (301) 983 , (301) 996 , (301) 998

Counties

County	Prefixes
Montgomery	(301) 202 , (301) 204 , (301) 208 , (301) 212 , (301) 213 , (301) 214 , (301) 215 , (301) 216 , (301) 217 , (301) 219 , (301) 222 , (301) 224 , (301) 227 , (301) 229 , (301) 230 , (301) 231 , (301) 232 , (301) 233 , (301) 236 , (301) 237 , (301) 240 , (301) 242 , (301) 243 , (301) 244 , (301) 250 , (301) 251 , (301) 252 , (301) 253 , (301) 254 , (301) 255 , (301) 256 , (301) 257 , (301) 258 , (301) 260 , (301) 263 , (301) 269 , (301) 270 , (301) 272 , (301) 273 , (301) 275 , (301) 279 , (301) 280 , (301) 282 , (301) 284 , (301) 285 , (301) 287 , (301) 288 , (301) 289 , (301) 294 , (301) 295 , (301) 296 , (301) 299 , (301) 300 , (301) 305 , (301) 309 , (301) 312 , (301) 314 , (301) 315 , (301) 318 , (301) 319 , (301) 320 , (301) 321 , (301) 325 , (301) 326 , (301) 328 , (301) 330 , (301) 331 , (301) 332 , (301) 337 , (301) 340 , (301) 347 , (301) 348 , (301) 349 , (301) 351 , (301) 353 , (301) 354 , (301) 355 , (301) 357 , (301) 363 , (301) 365 , (301) 367 , (301) 368 , (301) 370 , (301) 379 , (301) 380 , (301) 382 , (301) 384 , (301) 388 , (301) 391 , (301) 398 , (301) 400 , (301) 402 , (301) 404 , (301) 405 , (301) 406 , (301) 407 , (301) 408 , (301) 412 , (301) 413 , (301) 414 , (301) 415 , (301) 417 , (301) 419 , (301) 421 , (301) 424 , (301) 427 , (301) 428 , (301) 431 , (301) 433 , (301) 434 , (301) 435 , (301) 438 , (301) 439 , (301) 440 , (301) 442 , (301) 443 , (301) 444 , (301) 445 , (301) 448 , (301) 452 , (301) 455 , (301) 460 , (301) 461 , (301) 465 , (301) 466 , (301) 468 , (301) 469 , (301) 476 , (301) 480 , (301) 482 , (301) 489 , (301) 492 , (301) 493 , (301) 495 , (301) 496 , (301) 500 , (301) 502 , (301) 503 , (301) 504 , (301) 509 , (301) 510 , (301) 512 , (301) 515 , (301) 517 , (301) 518 , (301) 519 , (301) 520 , (301) 521 , (301) 522 , (301) 523 , (301) 525 , (301) 526 , (301) 527 , (301) 528 , (301) 529 , (301) 530 , (301) 534 , (301) 537 , (301) 538 , (301) 540 , (301) 544 , (301) 545 , (301) 548 , (301) 549 , (301) 551 , (301) 554 , (301) 556 , (301) 561 , (301) 562 , (301) 563 , (301) 564 , (301) 565 , (301) 569 , (301) 570 , (301) 571 , (301) 572 , (301) 576 , (301) 578 , (301) 581 , (301) 584 , (301) 585 , (301) 586 , (301) 587 , (301) 588 , (301) 589 , (301) 590 , (301) 591 , (301) 592 , (301) 593 , (301) 594 , (301) 598 , (301) 601 , (301) 603 , (301) 605 , (301) 607 , (301) 608 , (301) 610 , (301) 612 , (301) 618 , (301) 622 , (301) 625 , (301) 626 , (301) 628 , (301) 633 , (301) 634 , (301) 640 , (301) 641 , (301) 642 , (301) 646 , (301) 648 , (301) 649 , (301) 650 , (301) 651 , (301) 652 , (301) 654 , (301) 655 , (301) 656 , (301) 657 , (301) 658 , (301) 661 , (301) 664 , (301) 670 , (301) 674 , (301) 677 , (301) 679 , (301) 680 , (301) 681 , (301) 685 , (301) 691 , (301) 692 , (301) 701 , (301) 704 , (301) 707 , (301) 713 , (301) 717 , (301) 718 , (301) 721 , (301) 728 , (301) 738 , (301) 740 , (301) 742 , (301) 744 , (301) 754 , (301) 755 , (301) 760 , (301) 761 , (301) 762 , (301) 765 , (301) 767 , (301) 768 , (301) 770 , (301) 771 , (301) 774 , (301) 775 , (301) 785 , (301) 787 , (301) 792 , (301) 795 , (301) 801 , (301) 803 , (301) 804 , (301) 806 , (301) 807 , (301) 813 , (301) 814 , (301) 816 , (301) 818 , (301) 819 , (301) 820 , (301) 822 , (301) 825 , (301) 827 , (301) 828 , (301) 830 , (301) 831 , (301) 838 , (301) 840 , (301) 841 , (301) 847 , (301) 848 , (301) 869 , (301) 871 , (301) 874 , (301) 879 , (301) 881 , (301) 890 , (301) 891 , (301) 896 , (301) 897 , (301) 901 , (301) 903 , (301) 905 , (301) 906 , (301) 907 , (301) 910 , (301) 913 , (301) 915 , (301) 916 , (301) 917 , (301) 920 , (301) 921 , (301) 922 , (301) 924 , (301) 926 , (301) 928 , (301) 929 , (301) 933 , (301) 938 , (301) 939 , (301) 940 , (301) 941 , (301) 942 , (301) 943 , (301) 944 , (301) 945 , (301) 946 , (301) 947 , (301) 948 , (301) 949 , (301) 951 , (301) 956 , (301) 960 , (301) 961 , (301) 962 , (301) 963 , (301) 966 , (301) 968 , (301) 972 , (301) 973 , (301) 975 , (301) 977 , (301) 978 , (301) 979 , (301) 981 , (301) 983 , (301) 984 , (301) 986 , (301) 987 , (301) 989 , (301) 990 , (301) 992 , (301) 996 , (301) 998
Prince Georges	(301) 203 , (301) 206 , (301) 207 , (301) 209 , (301) 210 , (301) 213 , (301) 218 , (301) 220 , (301) 221 , (301) 222 , (301) 225 , (301) 226 , (301) 234 , (301) 235 , (301) 237 , (301) 238 , (301) 239 , (301) 248 , (301) 249 , (301) 262 , (301) 265 , (301) 267 , (301) 270 , (301) 273 , (301) 276 , (301) 277 , (301) 278 , (301) 281 , (301) 282 , (301) 283 , (301) 286 , (301) 289 , (301) 291 , (301) 292 , (301) 297 , (301) 298 , (301) 303 , (301) 306 , (301) 308 , (301) 313 , (301) 314 , (301) 316 , (301) 317 , (301) 322 , (301) 323 , (301) 324 , (301) 327 , (301) 332 , (301) 333 , (301) 336 , (301) 341 , (301) 343 , (301) 344 , (301) 345 , (301) 346 , (301) 347 , (301) 350 , (301) 352 , (301) 358 , (301) 361 , (301) 362 , (301) 364 , (301) 366 , (301) 369 , (301) 372 , (301) 377 , (301) 383 , (301) 386 , (301) 389 , (301) 390 , (301) 394 , (301) 397 , (301) 403 , (301) 404 , (301) 405 , (301) 408 , (301) 419 , (301) 420 , (301) 422 , (301) 423 , (301) 425 , (301) 426 , (301) 429 , (301) 430 , (301) 431 , (301) 433 , (301) 434 , (301) 436 , (301) 437 , (301) 439 , (301) 440 , (301) 441 , (301) 442 , (301) 445 , (301) 446 , (301) 448 , (301) 449 , (301) 451 , (301) 452 , (301) 454 , (301) 455 , (301) 456 , (301) 457 , (301) 458 , (301) 459 , (301) 464 , (301) 467 , (301) 470 , (301) 474 , (301) 477 , (301) 479 , (301) 483 , (301) 484 , (301) 485 , (301) 486 , (301) 489 , (301) 490 , (301) 497 , (301) 498 , (301) 499 , (301) 504 , (301) 505 , (301) 506 , (301) 507 , (301) 513 , (301) 516 , (301) 521 , (301) 523 , (301) 529 , (301) 531 , (301) 532 , (301) 537 , (301) 541 , (301) 543 , (301) 549 , (301) 552 , (301) 558 , (301) 559 , (301) 560 , (301) 566 , (301) 567 , (301) 568 , (301) 572 , (301) 574 , (301) 577 , (301) 579 , (301) 580 , (301) 583 , (301) 586 , (301) 595 , (301) 599 , (301) 604 , (301) 613 , (301) 614 , (301) 615 , (301) 617 , (301) 618 , (301) 623 , (301) 627 , (301) 629 , (301) 630 , (301) 636 , (301) 641 , (301) 644 , (301) 647 , (301) 651 , (301) 666 , (301) 669 , (301) 675 , (301) 683 , (301) 686 , (301) 699 , (301) 702 , (301) 708 , (301) 709 , (301) 713 , (301) 715 , (301) 716 , (301) 717 , (301) 719 , (301) 720 , (301) 725 , (301) 727 , (301) 728 , (301) 731 , (301) 734 , (301) 735 , (301) 736 , (301) 742 , (301) 747 , (301) 749 , (301) 751 , (301) 756 , (301) 760 , (301) 763 , (301) 772 , (301) 773 , (301) 776 , (301) 778 , (301) 779 , (301) 780 , (301) 782 , (301) 783 , (301) 789 , (301) 792 , (301) 793 , (301) 794 , (301) 796 , (301) 805 , (301) 806 , (301) 807 , (301) 808 , (301) 809 , (301) 817 , (301) 821 , (301) 823 , (301) 832 , (301) 833 , (301) 836 , (301) 837 , (301) 839 , (301) 841 , (301) 844 , (301) 850 , (301) 851 , (301) 852 , (301) 853 , (301) 856 , (301) 859 , (301) 860 , (301) 864 , (301) 867 , (301) 868 , (301) 877 , (301) 880 , (301) 883 , (301) 887 , (301) 888 , (301) 891 , (301) 892 , (301) 894 , (301) 899 , (301) 901 , (301) 902 , (301) 908 , (301) 909 , (301) 914 , (301) 918 , (301) 919 , (301) 922 , (301) 923 , (301) 925 , (301) 927 , (301) 930 , (301) 931 , (301) 935 , (301) 936 , (301) 937 , (301) 939 , (301) 952 , (301) 953 , (301) 954 , (301) 955 , (301) 957 , (301) 965 , (301) 967 , (301) 971 , (301) 976 , (301) 981 , (301) 982 , (301) 985 , (301) 993 , (301) 996
Frederick	(301) 213 , (301) 228 , (301) 241 , (301) 252 , (301) 253 , (301) 269 , (301) 271 , (301) 293 , (301) 304 , (301) 305 , (301) 335 , (301) 360 , (301) 368 , (301) 370 , (301) 371 , (301) 378 , (301) 385 , (301) 391 , (301) 401 , (301) 414 , (301) 416 , (301) 418 , (301) 432 , (301) 435 , (301) 447 , (301) 462 , (301) 465 , (301) 471 , (301) 473 , (301) 487 , (301) 508 , (301) 514 , (301) 524 , (301) 600 , (301) 606 , (301) 607 , (301) 619 , (301) 620 , (301) 624 , (301) 631 , (301) 633 , (301) 635 , (301) 639 , (301) 641 , (301) 644 , (301) 662 , (301) 663 , (301) 667 , (301) 668 , (301) 673 , (301) 674 , (301) 676 , (301) 682 , (301) 685 , (301) 688 , (301) 693 , (301) 694 , (301) 695 , (301) 696 , (301) 698 , (301) 703 , (301) 712 , (301) 748 , (301) 788 , (301) 798 , (301) 806 , (301) 810 , (301) 815 , (301) 829 , (301) 831 , (301) 834 , (301) 845 , (301) 846 , (301) 854 , (301) 865 , (301) 873 , (301) 874 , (301) 882 , (301) 898 , (301) 969 , (301) 980 , (301) 996
Anne Arundel	(301) 205 , (301) 206 , (301) 261 , (301) 298 , (301) 317 , (301) 319 , (301) 323 , (301) 356 , (301) 358 , (301) 362 , (301) 369 , (301) 376 , (301) 389 , (301) 395 , (301) 409 , (301) 440 , (301) 470 , (301) 483 , (301) 490 , (301) 497 , (301) 498 , (301) 520 , (301) 574 , (301) 596 , (301) 604 , (301) 617 , (301) 621 , (301) 627 , (301) 674 , (301) 677 , (301) 688 , (301) 715 , (301) 725 , (301) 741 , (301) 756 , (301) 768 , (301) 776 , (301) 802 , (301) 855 , (301) 858 , (301) 875 , (301) 886 , (301) 889 , (301) 912 , (301) 939 , (301) 952 , (301) 953 , (301) 970 , (301) 974
Charles	(301) 200 , (301) 246 , (301) 259 , (301) 266 , (301) 274 , (301) 283 , (301) 372 , (301) 374 , (301) 375 , (301) 392 , (301) 396 , (301) 399 , (301) 535 , (301) 539 , (301) 542 , (301) 553 , (301) 579 , (301) 609 , (301) 632 , (301) 637 , (301) 638 , (301) 643 , (301) 645 , (301) 653 , (301) 659 , (301) 684 , (301) 705 , (301) 710 , (301) 743 , (301) 744 , (301) 751 , (301) 752 , (301) 753 , (301) 764 , (301) 782 , (301) 843 , (301) 861 , (301) 870 , (301) 880 , (301) 885 , (301) 888 , (301) 893 , (301) 928 , (301) 932 , (301) 934
Howard	(301) 206 , (301) 237 , (301) 256 , (301) 307 , (301) 310 , (301) 317 , (301) 346 , (301) 356 , (301) 361 , (301) 362 , (301) 369 , (301) 376 , (301) 380 , (301) 395 , (301) 404 , (301) 467 , (301) 470 , (301) 483 , (301) 489 , (301) 490 , (301) 497 , (301) 498 , (301) 531 , (301) 575 , (301) 596 , (301) 602 , (301) 604 , (301) 617 , (301) 621 , (301) 647 , (301) 648 , (301) 706 , (301) 725 , (301) 741 , (301) 758 , (301) 776 , (301) 854 , (301) 875 , (301) 886 , (301) 939 , (301) 953 , (301) 964 , (301) 974
Washington	(301) 223 , (301) 241 , (301) 293 , (301) 302 , (301) 331 , (301) 393 , (301) 416 , (301) 432 , (301) 491 , (301) 573 , (301) 582 , (301) 597 , (301) 660 , (301) 665 , (301) 671 , (301) 678 , (301) 714 , (301) 730 , (301) 733 , (301) 739 , (301) 745 , (301) 766 , (301) 790 , (301) 791 , (301) 797 , (301) 799 , (301) 800 , (301) 824 , (301) 835 , (301) 842 , (301) 857 , (301) 988 , (301) 991 , (301) 992 , (301) 999
Saint Marys	(301) 247 , (301) 259 , (301) 274 , (301) 290 , (301) 342 , (301) 347 , (301) 373 , (301) 392 , (301) 472 , (301) 475 , (301) 481 , (301) 536 , (301) 557 , (301) 609 , (301) 672 , (301) 690 , (301) 737 , (301) 757 , (301) 769 , (301) 826 , (301) 862 , (301) 863 , (301) 866 , (301) 872 , (301) 884 , (301) 888 , (301) 904 , (301) 934 , (301) 994 , (301) 995 , (301) 997
Allegany	(301) 264 , (301) 268 , (301) 338 , (301) 359 , (301) 463 , (301) 478 , (301) 546 , (301) 597 , (301) 678 , (301) 687 , (301) 689 , (301) 697 , (301) 707 , (301) 722 , (301) 723 , (301) 724 , (301) 729 , (301) 759 , (301) 777 , (301) 781 , (301) 783 , (301) 784 , (301) 786 , (301) 793 , (301) 876 , (301) 895
Garrett	(301) 245 , (301) 334 , (301) 359 , (301) 387 , (301) 453 , (301) 501 , (301) 533 , (301) 616 , (301) 746 , (301) 750 , (301) 849 , (301) 895
Baltimore City	(301) 276 , (301) 307 , (301) 342 , (301) 405 , (301) 524 , (301) 547 , (301) 596 , (301) 675 , (301) 732 , (301) 854 , (301) 878
Baltimore	(301) 310 , (301) 329 , (301) 339 , (301) 821 , (301) 837
District Of Columbia	(301) 272 , (301) 380 , (301) 457 , (301) 488 , (301) 619
Carroll	(301) 447 , (301) 845 , (301) 854 , (301) 898
Calvert	(301) 494 , (301) 812 , (301) 855
Alexandria City	(301) 529
Newport News City	(301) 526

Telephone Carriers

Carrier	Type	Prefixes (%)
Verizon Maryland Inc	Landline	76%
Cellco Partnership Dba Verizon Wireless Md	Wireless	4%
Sprint Spectrum L P	Wireless	3%
New Cingular Wireless Pcs Llc Dc	Wireless	3%
Teleport Communications America Llc Dc	Landline	2%
Mcimetro Access Transmission Services Llc	Landline	2%
Tw Telecom Of Maryland Llc Md	Landline	1%
At T Local	Landline	1%
Paetec Communications Inc Md	Landline	1%
Sprint Spectrum L P Md	Wireless	1%
Usa Mobility Wireless Inc	Wireless	1%
Omnipoint Communications Cap Operations Llc	Wireless	1%
Comcast Phone Of Northern Maryland Inc Md	Landline	1%
Mci Worldcom Communications Inc Md	Landline	1%
Level 3 Communications Llc Md	Landline	1%
Bandwidth Com Clec Llc Md	Landline	< 1%
Cavalier Telephone Mid Atlantic Llc Md	Wireless	< 1%
Mountain Communications Llc Dba Procom Md	Wireless	< 1%
Ymax Communications Corp Md	Wireless	< 1%
Core Communications Inc Md	Landline	< 1%
Starpower Communications Llc Md	Landline	< 1%
Xo Maryland Llc	Landline	< 1%
Telcove Operations Inc Md	Landline	< 1%
Vdl Inc Dba Global Telecom Brokers Md	Landline	< 1%
Quantum Telecommunications Inc Md	Landline	< 1%
Baltimore Washington Telephone Bwt	Landline	< 1%
Us Lec Of Maryland Inc	Landline	< 1%
Core Communications Inc Pa	Landline	< 1%
New Frontiers Telecommunications Inc	Landline	< 1%
Teleport Communications America Llc Md	Wireless	< 1%
Broadwing Communications Llc Md	Wireless	< 1%
Uscoc Of Cumberland Inc Dba United States Cel Md	Wireless	< 1%
Idt America Corp Md	Landline	< 1%
Virginia Pcs Alliance L C	Wireless	< 1%

Prefixes

Prefix	City	Carrier	Type
(301) 915	Germantown	Starpower Communications, Llc - Md	Landline
(301) 259	Mount Victoria	Verizon Maryland, Inc.	Landline
(301) 743	Nanjemoy	Verizon Maryland, Inc.	Landline
(301) 459	Lanham	Verizon Maryland, Inc.	Landline
(301) 394	District Heights	Verizon Maryland, Inc.	Landline
(301) 718	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 392	Charlotte Hall	Verizon Maryland, Inc.	Landline
(301) 740	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 840	Derwood	Verizon Maryland, Inc.	Landline
(301) 886	Laurel	Verizon Maryland, Inc.	Landline
(301) 701	Takoma Park	Verizon Maryland, Inc.	Wireless
(301) 370	Rockville	Sprint Spectrum L.p. - Md	Wireless
(301) 209	Riverdale	Verizon Maryland, Inc.	Landline
(301) 433	Temple Hills	Verizon Maryland, Inc.	Landline
(301) 775	Kensington	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 774	Olney	Verizon Maryland, Inc.	Landline
(301) 237	Laurel	Sprint Spectrum L.p.	Wireless
(301) 913	Bethesda	Verizon Maryland, Inc.	Landline
(301) 834	Jefferson	Verizon Maryland, Inc.	Landline
(301) 350	Capitol Heights	Verizon Maryland, Inc.	Landline
(301) 307	Clarksville	Verizon Maryland, Inc.	Landline
(301) 831	Adamstown	Verizon Maryland, Inc.	Landline
(301) 490	Columbia	Verizon Maryland, Inc.	Landline
(301) 519	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 341	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 846	Frederick	Verizon Maryland, Inc.	Landline
(301) 997	Hollywood	Verizon Maryland, Inc.	Landline
(301) 309	Potomac	Verizon Maryland, Inc.	Landline
(301) 823	Riverdale	At&t Local	Landline
(301) 414	Clarksburg	Verizon Maryland, Inc.	Landline
(301) 432	Keedysville	Verizon Maryland, Inc.	Landline
(301) 905	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 667	Thurmont	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 896	Bethesda	Verizon Maryland, Inc.	Landline
(301) 621	Severn	Verizon Maryland, Inc.	Landline
(301) 253	Clarksburg	Verizon Maryland, Inc.	Landline
(301) 423	Suitland	Verizon Maryland, Inc.	Landline
(301) 436	Riverdale	Verizon Maryland, Inc.	Landline
(301) 590	Montgomery Village	Verizon Maryland, Inc.	Landline
(301) 888	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 644	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 874	Tuscarora	Verizon Maryland, Inc.	Landline
(301) 260	Rockville	Verizon Maryland, Inc.	Landline
(301) 927	Riverdale	Verizon Maryland, Inc.	Landline
(301) 218	Bowie	Verizon Maryland, Inc.	Landline
(301) 416	Smithsburg	Verizon Maryland, Inc.	Landline
(301) 390	Glenn Dale	Verizon Maryland, Inc.	Landline
(301) 431	Takoma Park	Verizon Maryland, Inc.	Landline
(301) 541	Suitland	Teleport Communications America, Llc - Dc	Landline
(301) 306	Lanham	Verizon Maryland, Inc.	Landline
(301) 375	Indian Head	Verizon Maryland, Inc.	Landline
(301) 261	Lothian	Verizon Maryland, Inc.	Landline
(301) 368	Germantown	Verizon Maryland, Inc.	Landline
(301) 245	Accident	Verizon Maryland, Inc.	Landline
(301) 838	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 863	Patuxent River	Verizon Maryland, Inc.	Landline
(301) 241	Sabillasville	Verizon Maryland, Inc.	Landline
(301) 336	Capitol Heights	Verizon Maryland, Inc.	Landline
(301) 813	Bethesda	Baltimore-washington Telephone Bwt	Landline
(301) 908	Upper Marlboro	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 901	Greenbelt	Verizon Maryland, Inc.	Landline
(301) 628	Silver Spring	Teleport Communications America, Llc - Dc	Landline
(301) 809	Bowie	Verizon Maryland, Inc.	Landline
(301) 441	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 498	Fulton	Verizon Maryland, Inc.	Landline
(301) 678	Little Orleans	Verizon Maryland, Inc.	Landline
(301) 889	Harwood	Verizon Maryland, Inc.	Landline
(301) 470	Beltsville	Verizon Maryland, Inc.	Landline
(301) 475	Clements	Verizon Maryland, Inc.	Landline
(301) 417	Montgomery Village	Verizon Maryland, Inc.	Landline
(301) 607	Clarksburg	Verizon Maryland, Inc.	Landline
(301) 817	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 972	Boyds	Verizon Maryland, Inc.	Landline
(301) 294	Potomac	Verizon Maryland, Inc.	Landline
(301) 903	Germantown	Verizon Maryland, Inc.	Landline
(301) 855	Prince Frederick	Verizon Maryland, Inc.	Landline
(301) 869	Derwood	Verizon Maryland, Inc.	Landline
(301) 493	Bethesda	Verizon Maryland, Inc.	Landline
(301) 647	Laurel	Verizon Maryland, Inc.	Wireless
(301) 725	Laurel	Verizon Maryland, Inc.	Landline
(301) 683	Mount Rainier	Teleport Communications America, Llc - Dc	Landline
(301) 276	Baltimore	Mcimetro Access Transmission Services Llc	Landline
(301) 925	Capitol Heights	Verizon Maryland, Inc.	Landline
(301) 286	Greenbelt	Verizon Maryland, Inc.	Landline
(301) 426	Suitland	Verizon Maryland, Inc.	Wireless
(301) 577	Bowie	Verizon Maryland, Inc.	Landline
(301) 548	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 212	Potomac	Verizon Maryland, Inc.	Landline
(301) 373	Hollywood	Verizon Maryland, Inc.	Landline
(301) 810	Monrovia	At&t Local	Landline
(301) 292	Fort Washington	Verizon Maryland, Inc.	Landline
(301) 752	Indian Head	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 953	Laurel	Verizon Maryland, Inc.	Landline
(301) 887	Riverdale	Verizon Maryland, Inc.	Landline
(301) 540	Germantown	Verizon Maryland, Inc.	Landline
(301) 777	Cumberland	Verizon Maryland, Inc.	Landline
(301) 974	Laurel	Starpower Communications, Llc - Md	Landline
(301) 232	Brinklow	Mcimetro Access Transmission Services Llc	Landline
(301) 779	Bladensburg	Verizon Maryland, Inc.	Landline
(301) 996	College Park	Sprint Spectrum L.p.	Wireless
(301) 985	Bladensburg	Verizon Maryland, Inc.	Landline
(301) 854	Sykesville	Verizon Maryland, Inc.	Landline
(301) 862	Park Hall	Verizon Maryland, Inc.	Landline
(301) 979	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 894	Oxon Hill	Verizon Maryland, Inc.	Landline
(301) 923	Bladensburg	Verizon Maryland, Inc.	Wireless
(301) 464	Bowie	Verizon Maryland, Inc.	Landline
(301) 990	Derwood	Verizon Maryland, Inc.	Landline
(301) 454	Brentwood	Verizon Maryland, Inc.	Landline
(301) 425	Laurel	Verizon Maryland, Inc.	Wireless
(301) 494	Port Republic	Verizon Maryland, Inc.	Landline
(301) 353	Damascus	Verizon Maryland, Inc.	Landline
(301) 287	Rockville	Mcimetro Access Transmission Services Llc	Landline
(301) 582	Clear Spring	Verizon Maryland, Inc.	Landline
(301) 792	Silver Spring	Omnipoint Communications Cap Operations, Llc	Wireless
(301) 584	Silver Spring	Baltimore-washington Telephone Bwt	Landline
(301) 348	Bethesda	Mci Worldcom Communications, Inc. - Md	Landline
(301) 434	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 636	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 206	Laurel	Verizon Maryland, Inc.	Landline
(301) 297	Clinton	Verizon Maryland, Inc.	Landline
(301) 435	Frederick	Verizon Maryland, Inc.	Landline
(301) 692	Bethesda	Teleport Communications America, Llc - Dc	Landline
(301) 793	Cumberland	Omnipoint Communications Cap Operations, Llc	Wireless
(301) 277	Brentwood	Verizon Maryland, Inc.	Landline
(301) 504	Bethesda	Verizon Maryland, Inc.	Landline
(301) 759	Ellerslie	Verizon Maryland, Inc.	Landline
(301) 225	Riverdale	Teleport Communications America, Llc - Dc	Wireless
(301) 617	Jessup	Verizon Maryland, Inc.	Landline
(301) 250	Gaithersburg	Mcimetro Access Transmission Services Llc	Landline
(301) 790	Boonsboro	Verizon Maryland, Inc.	Landline
(301) 507	College Park	Verizon Maryland, Inc.	Landline
(301) 215	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 407	Barnesville	Verizon Maryland, Inc.	Landline
(301) 609	White Plains	Verizon Maryland, Inc.	Landline
(301) 521	District Heights	Verizon Maryland, Inc.	Landline
(301) 610	Rockville	Verizon Maryland, Inc.	Landline
(301) 973	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 687	Frostburg	Verizon Maryland, Inc.	Landline
(301) 841	Chevy Chase	Mcimetro Access Transmission Services Llc	Landline
(301) 865	Monrovia	Verizon Maryland, Inc.	Landline
(301) 907	Bethesda	Verizon Maryland, Inc.	Landline
(301) 832	Mount Rainier	At&t Local	Landline
(301) 895	Frostburg	Verizon Maryland, Inc.	Landline
(301) 497	Jessup	Verizon Maryland, Inc.	Landline
(301) 640	Montgomery Village	Verizon Maryland, Inc.	Landline
(301) 665	Boonsboro	Verizon Maryland, Inc.	Landline
(301) 563	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 978	Rockville	Verizon Maryland, Inc.	Landline
(301) 922	Germantown	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 984	Kensington	Verizon Maryland, Inc.	Landline
(301) 852	College Park	Verizon Maryland, Inc.	Landline
(301) 761	Bethesda	Level 3 Communications, Llc - Md	Landline
(301) 856	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 771	Chevy Chase	Verizon Maryland, Inc.	Wireless
(301) 317	Laurel	Verizon Maryland, Inc.	Landline
(301) 229	Cabin John	Verizon Maryland, Inc.	Landline
(301) 746	Grantsville	Verizon Maryland, Inc.	Landline
(301) 455	Capitol Heights	Sprint Spectrum L.p.	Wireless
(301) 623	Beltsville	Teleport Communications America, Llc - Dc	Landline
(301) 315	Potomac	Verizon Maryland, Inc.	Landline
(301) 525	Gaithersburg	Quantum Telecommunications, Inc. - Md	Landline
(301) 398	Rockville	Verizon Maryland, Inc.	Landline
(301) 508	Myersville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 881	Kensington	Verizon Maryland, Inc.	Landline
(301) 322	Lanham	Verizon Maryland, Inc.	Landline
(301) 361	College Park	Tw Telecom of Maryland Llc - Md	Landline
(301) 916	Poolesville	Verizon Maryland, Inc.	Landline
(301) 208	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 633	Frederick	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 492	Bethesda	Verizon Maryland, Inc.	Landline
(301) 735	Andrews Air Force Base	Verizon Maryland, Inc.	Landline
(301) 721	Montgomery Village	Verizon Maryland, Inc.	Landline
(301) 685	Clarksburg	Teleport Communications America, Llc - Dc	Landline
(301) 429	Bowie	Verizon Maryland, Inc.	Landline
(301) 702	Fort Washington	Verizon Maryland, Inc.	Landline
(301) 483	Columbia	Verizon Maryland, Inc.	Landline
(301) 362	Laurel	Verizon Maryland, Inc.	Landline
(301) 757	Patuxent River	Verizon Maryland, Inc.	Landline
(301) 451	Bowie	Verizon Maryland, Inc.	Landline
(301) 947	Derwood	Verizon Maryland, Inc.	Landline
(301) 352	Bowie	Verizon Maryland, Inc.	Landline
(301) 469	Bethesda	Verizon Maryland, Inc.	Landline
(301) 536	Leonardtown	Sprint Spectrum L.p.	Wireless
(301) 948	Rockville	Verizon Maryland, Inc.	Landline
(301) 272	Washington	Mcimetro Access Transmission Services Llc	Landline
(301) 786	Cumberland	Verizon Maryland, Inc.	Landline
(301) 688	Fort George G Meade	Verizon Maryland, Inc.	Landline
(301) 472	Charlotte Hall	Verizon Maryland, Inc.	Landline
(301) 484	Hyattsville	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 518	Potomac	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 409	Millersville	Usa Mobility Wireless, Inc.	Wireless
(301) 944	Gaithersburg	Mcimetro Access Transmission Services Llc	Landline
(301) 514	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 520	Glen Burnie	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 333	Bowie	Verizon Maryland, Inc.	Landline
(301) 657	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 946	Rockville	Verizon Maryland, Inc.	Landline
(301) 252	Mount Airy	Sprint Spectrum L.p. - Md	Wireless
(301) 359	Luke	Verizon Maryland, Inc.	Landline
(301) 500	Bethesda	Xo Maryland, Llc	Landline
(301) 308	Riverdale	Usa Mobility Wireless, Inc.	Wireless
(301) 496	Rockville	Verizon Maryland, Inc.	Landline
(301) 442	Riverdale	Sprint Spectrum L.p.	Wireless
(301) 880	La Plata	Level 3 Communications, Llc - Md	Landline
(301) 808	Capitol Heights	Verizon Maryland, Inc.	Landline
(301) 589	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 279	Rockville	Verizon Maryland, Inc.	Landline
(301) 892	Mount Rainier	Verizon Maryland, Inc.	Landline
(301) 523	Hyattsville	Sprint Spectrum L.p.	Wireless
(301) 467	Bowie	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 787	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 588	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 783	Brandywine	New Frontiers Telecommunications, Inc.	Landline
(301) 970	Annapolis	Verizon Maryland, Inc.	Landline
(301) 358	Lothian	Level 3 Communications, Llc - Md	Landline
(301) 513	College Park	Verizon Maryland, Inc.	Landline
(301) 604	Laurel	Verizon Maryland, Inc.	Landline
(301) 744	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 329	Monkton	Cavalier Telephone Mid-atlantic, Llc - Md	Wireless
(301) 998	Rockville	Verizon Maryland, Inc.	Landline
(301) 222	Bethesda	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(301) 452	Rockville	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 768	Rockville	Level 3 Communications, Llc - Md	Landline
(301) 675	Baltimore	Omnipoint Communications Cap Operations, Llc	Wireless
(301) 843	White Plains	Verizon Maryland, Inc.	Landline
(301) 342	Baltimore	Verizon Maryland, Inc.	Landline
(301) 553	Waldorf	Usa Mobility Wireless, Inc.	Wireless
(301) 902	Laurel	Verizon Maryland, Inc.	Landline
(301) 430	Bowie	Verizon Maryland, Inc.	Landline
(301) 444	Damascus	Verizon Maryland, Inc.	Landline
(301) 258	Derwood	Verizon Maryland, Inc.	Landline
(301) 230	Kensington	Verizon Maryland, Inc.	Landline
(301) 705	Waldorf	Verizon Maryland, Inc.	Landline
(301) 457	Washington	Verizon Maryland, Inc.	Landline
(301) 371	Frederick	Verizon Maryland, Inc.	Landline
(301) 988	Hagerstown	Uscoc of Cumberland, Inc. Dba United States Cel Md	Wireless
(301) 421	Spencerville	Verizon Maryland, Inc.	Landline
(301) 251	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 330	Derwood	Verizon Maryland, Inc.	Landline
(301) 872	Scotland	Verizon Maryland, Inc.	Landline
(301) 812	North Beach	Verizon Maryland, Inc.	Landline
(301) 969	Brunswick	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 503	Chevy Chase	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 776	Jessup	Verizon Maryland, Inc.	Landline
(301) 727	Suitland	Baltimore-washington Telephone Bwt	Landline
(301) 204	Bethesda	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 679	Rockville	Teleport Communications America, Llc - Dc	Landline
(301) 827	Bethesda	Verizon Maryland, Inc.	Landline
(301) 473	Frederick	Verizon Maryland, Inc.	Landline
(301) 477	College Park	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 864	Riverdale	Verizon Maryland, Inc.	Landline
(301) 356	Laurel	Vdl, Inc. Dba Global Telecom Brokers - Md	Landline
(301) 748	Frederick	Sprint Spectrum L.p.	Wireless
(301) 246	Ironsides	Verizon Maryland, Inc.	Landline
(301) 751	Waldorf	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 515	Germantown	Verizon Maryland, Inc.	Landline
(301) 487	Myersville	Verizon Maryland, Inc.	Landline
(301) 366	Bowie	Sprint Spectrum L.p. - Md	Landline
(301) 391	Germantown	Verizon Maryland, Inc.	Landline
(301) 408	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 527	Germantown	Verizon Maryland, Inc.	Landline
(301) 828	Bethesda	At&t Local	Landline
(301) 625	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 254	Rockville	Sprint Spectrum L.p.	Wireless
(301) 234	Clinton	Verizon Maryland, Inc.	Landline
(301) 485	Temple Hills	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 782	Waldorf	Verizon Maryland, Inc.	Landline
(301) 975	Potomac	Verizon Maryland, Inc.	Landline
(301) 587	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 684	Indian Head	Teleport Communications America, Llc - Dc	Landline
(301) 449	Temple Hills	Verizon Maryland, Inc.	Landline
(301) 924	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 579	Aquasco	Verizon Maryland, Inc.	Landline
(301) 789	Mount Rainier	Core Communications, Inc. - Pa	Landline
(301) 456	Suitland	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 210	Laurel	Verizon Maryland, Inc.	Landline
(301) 756	Laurel	Tw Telecom of Maryland Llc - Md	Landline
(301) 753	Marbury	Verizon Maryland, Inc.	Landline
(301) 819	Silver Spring	Verizon Maryland, Inc.	Wireless
(301) 971	Temple Hills	Starpower Communications, Llc - Md	Landline
(301) 848	Ashton	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 405	Silver Spring	Paetec Communications, Inc. - Md	Landline
(301) 295	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 273	Silver Spring	Mcimetro Access Transmission Services Llc	Landline
(301) 737	Patuxent River	Verizon Maryland, Inc.	Landline
(301) 873	Walkersville	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 578	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 650	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 999	Hagerstown		Wireless
(301) 866	Great Mills	Verizon Maryland, Inc.	Landline
(301) 932	Bel Alton	Verizon Maryland, Inc.	Landline
(301) 324	Capitol Heights	Verizon Maryland, Inc.	Landline
(301) 760	Lanham	Level 3 Communications, Llc - Md	Landline
(301) 769	Coltons Point	Verizon Maryland, Inc.	Landline
(301) 401	Thurmont	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 415	Rockville	Verizon Maryland, Inc.	Landline
(301) 986	Bethesda	Verizon Maryland, Inc.	Landline
(301) 934	Bel Alton	Verizon Maryland, Inc.	Landline
(301) 478	Flintstone	Verizon Maryland, Inc.	Landline
(301) 962	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 987	Derwood	Verizon Maryland, Inc.	Landline
(301) 876	Cumberland	Level 3 Communications, Llc - Md	Landline
(301) 837	College Park	Mcimetro Access Transmission Services Llc	Landline
(301) 859	Temple Hills	Level 3 Communications, Llc - Md	Landline
(301) 374	White Plains	Verizon Maryland, Inc.	Landline
(301) 479	Beltsville	Mci Worldcom Communications, Inc. - Md	Landline
(301) 921	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 847	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 403	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 499	District Heights	Verizon Maryland, Inc.	Landline
(301) 818	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 219	Bethesda	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 304	Frederick	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 281	Fort Washington	Mcimetro Access Transmission Services Llc	Landline
(301) 652	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 954	Mount Rainier		Landline
(301) 918	Bowie	Verizon Maryland, Inc.	Landline
(301) 956	Rockville	Verizon Maryland, Inc.	Landline
(301) 868	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 419	Beltsville	Verizon Maryland, Inc.	Landline
(301) 933	Rockville	Verizon Maryland, Inc.	Landline
(301) 238	Suitland	Verizon Maryland, Inc.	Landline
(301) 642	Gaithersburg	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 968	Bethesda	Mci Worldcom Communications, Inc. - Md	Landline
(301) 634	Chevy Chase	Teleport Communications America, Llc - Dc	Landline
(301) 491	Hagerstown	Uscoc of Cumberland, Inc. Dba United States Cel Md	Wireless
(301) 798	Monrovia	Verizon Maryland, Inc.	Landline
(301) 223	Williamsport	Verizon Maryland, Inc.	Landline
(301) 347	Lexington Park	Verizon Maryland, Inc.	Landline
(301) 659	Waldorf	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 338	Cumberland	Idt America Corp - Md	Landline
(301) 745	Hagerstown	Verizon Maryland, Inc.	Landline
(301) 719	Andrews Air Force Base	Teleport Communications America, Llc - Dc	Landline
(301) 560	Mount Rainier	Paetec Communications, Inc. - Md	Landline
(301) 693	Frederick	Omnipoint Communications Cap Operations, Llc	Wireless
(301) 601	Germantown	Verizon Maryland, Inc.	Landline
(301) 849	Oakland	New Frontiers Telecommunications, Inc.	Landline
(301) 931	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 354	Rockville	Teleport Communications America, Llc - Dc	Landline
(301) 627	Harwood	Verizon Maryland, Inc.	Landline
(301) 262	Bowie	Verizon Maryland, Inc.	Landline
(301) 977	Derwood	Verizon Maryland, Inc.	Landline
(301) 825	Rockville	At&t Local	Landline
(301) 263	Bethesda	Verizon Maryland, Inc.	Landline
(301) 213	Suitland	Sprint Spectrum L.p.	Wireless
(301) 791	Boonsboro	Verizon Maryland, Inc.	Landline
(301) 446	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 994	Drayden	Verizon Maryland, Inc.	Landline
(301) 217	Potomac	Verizon Maryland, Inc.	Landline
(301) 981	Bethesda	Tw Telecom of Maryland Llc - Md	Landline
(301) 293	Myersville	Verizon Maryland, Inc.	Landline
(301) 531	Lanham	Starpower Communications, Llc - Md	Landline
(301) 661	Bethesda	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 549	Laurel	Verizon Maryland, Inc.	Landline
(301) 833	Bowie	Teleport Communications America, Llc - Dc	Landline
(301) 800	Hagerstown	Virginia Pcs Alliance, L.c.	Wireless
(301) 844	Brentwood	Sprint Spectrum L.p.	Landline
(301) 963	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 462	Myersville	Sprint Spectrum L.p. - Md	Wireless
(301) 641	Upper Marlboro	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 836	Suitland	Verizon Maryland, Inc.	Landline
(301) 938	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 282	Bowie	Verizon Maryland, Inc.	Landline
(301) 570	Sandy Spring	Verizon Maryland, Inc.	Landline
(301) 870	White Plains	Verizon Maryland, Inc.	Landline
(301) 585	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 871	Rockville	Verizon Maryland, Inc.	Landline
(301) 767	Potomac	Verizon Maryland, Inc.	Landline
(301) 596	Clarksville	Verizon Maryland, Inc.	Landline
(301) 906	Bethesda	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 645	Hughesville	Verizon Maryland, Inc.	Landline
(301) 899	Fort Washington	Verizon Maryland, Inc.	Landline
(301) 216	Derwood	Verizon Maryland, Inc.	Landline
(301) 730	Hagerstown	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 884	Chaptico	Verizon Maryland, Inc.	Landline
(301) 957	Laurel	Mcimetro Access Transmission Services Llc	Landline
(301) 897	Rockville	Verizon Maryland, Inc.	Landline
(301) 821	Towson	At&t Local	Landline
(301) 606	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 893	Waldorf	Verizon Maryland, Inc.	Landline
(301) 203	Accokeek	Verizon Maryland, Inc.	Landline
(301) 274	Bryantown	Verizon Maryland, Inc.	Landline
(301) 722	Cumberland	Verizon Maryland, Inc.	Landline
(301) 603	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 766	Boonsboro	Verizon Maryland, Inc.	Landline
(301) 620	Frederick	Verizon Maryland, Inc.	Landline
(301) 820	Gaithersburg	At&t Local	Landline
(301) 386	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 586	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 340	Potomac	Verizon Maryland, Inc.	Landline
(301) 516	Andrews Air Force Base	Verizon Maryland, Inc.	Landline
(301) 669	Capitol Heights	Verizon Maryland, Inc.	Landline
(301) 891	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 739	Boonsboro	Verizon Maryland, Inc.	Landline
(301) 741	Laurel	Level 3 Communications, Llc - Md	Landline
(301) 875	Laurel	Cellco Partnership Dba Verizon Wireless - Md	Landline
(301) 883	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 537	Silver Spring	Sprint Spectrum L.p.	Wireless
(301) 624	Frederick	Verizon Maryland, Inc.	Landline
(301) 235	Clinton	Mcimetro Access Transmission Services Llc	Landline
(301) 463	Barton	Verizon Maryland, Inc.	Landline
(301) 583	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 638	Waldorf	Verizon Maryland, Inc.	Landline
(301) 325	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 207	Glenn Dale	Usa Mobility Wireless, Inc.	Wireless
(301) 670	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 567	Oxon Hill	Verizon Maryland, Inc.	Landline
(301) 713	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 686	Oxon Hill	Verizon Maryland, Inc.	Landline
(301) 648	Jessup	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 395	Laurel	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 420	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 265	Fort Washington	Verizon Maryland, Inc.	Landline
(301) 372	Cheltenham	Verizon Maryland, Inc.	Landline
(301) 928	Bethesda	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 289	Beltsville	Mcimetro Access Transmission Services Llc	Landline
(301) 926	Germantown	Verizon Maryland, Inc.	Landline
(301) 945	Rockville	Mcimetro Access Transmission Services Llc	Landline
(301) 612	Ashton	Teleport Communications America, Llc - Md	Wireless
(301) 376	Laurel	Verizon Maryland, Inc.	Wireless
(301) 486	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 682	Frederick	Verizon Maryland, Inc.	Landline
(301) 651	Lanham	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 724	Corriganville	Verizon Maryland, Inc.	Landline
(301) 461	Rockville	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 424	Potomac	Verizon Maryland, Inc.	Landline
(301) 714	Hagerstown	Verizon Maryland, Inc.	Landline
(301) 529	Fort Washington	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 755	Silver Spring	Mci Worldcom Communications, Inc. - Md	Landline
(301) 331	Potomac	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 663	Frederick	Verizon Maryland, Inc.	Landline
(301) 357	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 643	Waldorf	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 367	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 691	Poolesville	Teleport Communications America, Llc - Dc	Landline
(301) 355	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 877	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 920	Silver Spring	Starpower Communications, Llc - Md	Landline
(301) 631	Frederick	Verizon Maryland, Inc.	Landline
(301) 655	Gaithersburg	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 982	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 220	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 397	Greenbelt	Verizon Maryland, Inc.	Wireless
(301) 842	Big Pool	Verizon Maryland, Inc.	Landline
(301) 731	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 380	Washington	Verizon Maryland, Inc.	Landline
(301) 797	Boonsboro	Verizon Maryland, Inc.	Landline
(301) 909	Hyattsville	Mcimetro Access Transmission Services Llc	Landline
(301) 967	Capitol Heights	Verizon Maryland, Inc.	Landline
(301) 597	Hagerstown	New Frontiers Telecommunications, Inc.	Landline
(301) 614	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 389	Laurel	Tw Telecom of Maryland Llc - Md	Landline
(301) 594	Bethesda	Verizon Maryland, Inc.	Landline
(301) 247	Leonardtown	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 729	Rawlings	Verizon Maryland, Inc.	Landline
(301) 952	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 600	Frederick	Verizon Maryland, Inc.	Landline
(301) 290	Mechanicsville	Verizon Maryland, Inc.	Landline
(301) 240	Gaithersburg	Verizon Maryland, Inc.	Landline
(301) 280	Bethesda	Verizon Maryland, Inc.	Landline
(301) 742	Potomac	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 552	Greenbelt	Verizon Maryland, Inc.	Landline
(301) 572	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 267	Riverdale	Sprint Spectrum L.p.	Wireless
(301) 443	Takoma Park	Verizon Maryland, Inc.	Landline
(301) 709	Riverdale	Usa Mobility Wireless, Inc.	Wireless
(301) 602	Laurel	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 344	Greenbelt	Verizon Maryland, Inc.	Landline
(301) 271	Rocky Ridge	Verizon Maryland, Inc.	Landline
(301) 312	Chevy Chase	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 773	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 980	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 488	Washington	Verizon Maryland, Inc.	Wireless
(301) 524	Baltimore	Sprint Spectrum L.p.	Wireless
(301) 404	Columbia	Sprint Spectrum L.p.	Wireless
(301) 369	Laurel	Verizon Maryland, Inc.	Landline
(301) 305	Bethesda	Sprint Spectrum L.p.	Wireless
(301) 319	Annapolis	Verizon Maryland, Inc.	Landline
(301) 941	Bethesda	Verizon Maryland, Inc.	Landline
(301) 249	Bowie	Verizon Maryland, Inc.	Landline
(301) 269	Clarksburg	Usa Mobility Wireless, Inc.	Wireless
(301) 814	Bethesda	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 619	Frederick	Verizon Maryland, Inc.	Landline
(301) 942	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 243	Bethesda	Verizon Maryland, Inc.	Landline
(301) 474	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 939	Laurel	Verizon Maryland, Inc.	Landline
(301) 428	Clarksburg	Verizon Maryland, Inc.	Landline
(301) 826	Great Mills	Verizon Maryland, Inc.	Landline
(301) 377	College Park	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 320	Bethesda	Verizon Maryland, Inc.	Landline
(301) 830	Silver Spring	At&t Local	Landline
(301) 728	Upper Marlboro	Omnipoint Communications Cap Operations, Llc	Wireless
(301) 256	Clarksburg	Mcimetro Access Transmission Services Llc	Landline
(301) 205	Harwood	Verizon Maryland, Inc.	Landline
(301) 298	Upper Marlboro	Mcimetro Access Transmission Services Llc	Landline
(301) 637	Waldorf	Level 3 Communications, Llc - Md	Landline
(301) 534	Chevy Chase	Ymax Communications Corp. - Md	Wireless
(301) 912	Gambrills	Verizon Maryland, Inc.	Landline
(301) 949	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 422	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 575	Columbia	Us Lec of Maryland, Inc.	Landline
(301) 781	Frostburg	New Frontiers Telecommunications, Inc.	Landline
(301) 396	Waldorf	Verizon Maryland, Inc.	Landline
(301) 445	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 772	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 310	Catonsville	Verizon Maryland, Inc.	Landline
(301) 227	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 447	Emmitsburg	Verizon Maryland, Inc.	Landline
(301) 712	Frederick	Mcimetro Access Transmission Services Llc	Landline
(301) 530	Kensington	Verizon Maryland, Inc.	Landline
(301) 879	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 495	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 716	Laurel	Verizon Maryland, Inc.	Wireless
(301) 646	Chevy Chase	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 845	Walkersville	Verizon Maryland, Inc.	Landline
(301) 399	Waldorf	Sprint Spectrum L.p.	Wireless
(301) 278	Suitland	Mcimetro Access Transmission Services Llc	Landline
(301) 393	Hagerstown	Verizon Maryland, Inc.	Landline
(301) 618	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 763	Capitol Heights	Verizon Maryland, Inc.	Landline
(301) 453	Swanton	Verizon Maryland, Inc.	Landline
(301) 676	Brunswick	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 806	Middletown	Sprint Spectrum L.p.	Wireless
(301) 556	Rockville	Teleport Communications America, Llc - Dc	Landline
(301) 807	Upper Marlboro	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 264	Mount Savage	Verizon Maryland, Inc.	Landline
(301) 599	Andrews Air Force Base	Verizon Maryland, Inc.	Landline
(301) 930	Beltsville	Verizon Maryland, Inc.	Wireless
(301) 630	Temple Hills	Verizon Maryland, Inc.	Landline
(301) 966	Silver Spring	Mcimetro Access Transmission Services Llc	Landline
(301) 480	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 851	Bladensburg	Verizon Maryland, Inc.	Landline
(301) 736	Capitol Heights	Verizon Maryland, Inc.	Landline
(301) 568	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 296	Gaithersburg	Mci Worldcom Communications, Inc. - Md	Landline
(301) 412	Kensington	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 343	Laurel	Sprint Spectrum L.p. - Md	Wireless
(301) 349	Boyds	Verizon Maryland, Inc.	Landline
(301) 505	Temple Hills	Verizon Maryland, Inc.	Landline
(301) 708	Riverdale	Cavalier Telephone Mid-atlantic, Llc - Md	Wireless
(301) 723	Cumberland	Verizon Maryland, Inc.	Landline
(301) 418	Frederick	Verizon Maryland, Inc.	Landline
(301) 762	Potomac	Verizon Maryland, Inc.	Landline
(301) 318	Chevy Chase	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 681	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 733	Boonsboro	Verizon Maryland, Inc.	Landline
(301) 283	Bryans Road	Verizon Maryland, Inc.	Landline
(301) 706	Laurel	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 796	Greenbelt	Verizon Maryland, Inc.	Landline
(301) 677	Fort George G Meade	Teleport Communications America, Llc - Dc	Landline
(301) 649	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 574	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 699	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 839	Oxon Hill	Verizon Maryland, Inc.	Landline
(301) 689	Eckhart Mines	Verizon Maryland, Inc.	Landline
(301) 904	Leonardtown	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 221	Laurel	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 476	Spencerville	Verizon Maryland, Inc.	Landline
(301) 964	Columbia	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 327	Upper Marlboro	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 489	Glenelg	Verizon Maryland, Inc.	Landline
(301) 929	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 334	Oakland	Verizon Maryland, Inc.	Landline
(301) 533	Swanton	Verizon Maryland, Inc.	Landline
(301) 268	Cumberland	Uscoc of Cumberland, Inc. Dba United States Cel Md	Wireless
(301) 346	Beltsville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 835	Hagerstown		Wireless
(301) 898	Frederick	Verizon Maryland, Inc.	Landline
(301) 233	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 955	Beltsville	Mcimetro Access Transmission Services Llc	Landline
(301) 364	Lanham	Mci Worldcom Communications, Inc. - Md	Landline
(301) 580	Bowie	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 502	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 658	Ashton	Teleport Communications America, Llc - Dc	Landline
(301) 378	Frederick	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 539	Bel Alton	Teleport Communications America, Llc - Dc	Landline
(301) 666	Bowie	Teleport Communications America, Llc - Dc	Landline
(301) 236	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 632	Waldorf	Verizon Maryland, Inc.	Landline
(301) 608	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 750	Mc Henry	Core Communications, Inc. - Md	Landline
(301) 605	Boyds	Verizon Maryland, Inc.	Landline
(301) 482	Clarksburg	Verizon Maryland, Inc.	Landline
(301) 680	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 257	Gaithersburg	Sprint Spectrum L.p.	Wireless
(301) 858	Arnold	Verizon Maryland, Inc.	Landline
(301) 255	Potomac	Verizon Maryland, Inc.	Landline
(301) 332	Upper Marlboro	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 402	Bethesda	Verizon Maryland, Inc.	Landline
(301) 803	Bethesda	Verizon Maryland, Inc.	Landline
(301) 703	Mount Airy	Level 3 Communications, Llc - Md	Landline
(301) 785	Gaithersburg	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 214	Bethesda	Verizon Maryland, Inc.	Landline
(301) 506	Riverdale	Usa Mobility Wireless, Inc.	Wireless
(301) 517	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 554	Chevy Chase	Usa Mobility Wireless, Inc.	Wireless
(301) 571	Bethesda	Verizon Maryland, Inc.	Landline
(301) 961	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 291	Hyattsville	Mcimetro Access Transmission Services Llc	Landline
(301) 400	Bethesda	Verizon Maryland, Inc.	Landline
(301) 284	Derwood	Mcimetro Access Transmission Services Llc	Landline
(301) 337	Gaithersburg	Mci Worldcom Communications, Inc. - Md	Landline
(301) 992	Silver Spring	Sprint Spectrum L.p. - Md	Wireless
(301) 543	Laurel	Teleport Communications America, Llc - Dc	Landline
(301) 660	Keedysville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 363	Damascus	Level 3 Communications, Llc - Md	Landline
(301) 581	Kensington	Verizon Maryland, Inc.	Landline
(301) 805	Glenn Dale	Verizon Maryland, Inc.	Landline
(301) 802	Davidsonville	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 795	Rockville	Mcimetro Access Transmission Services Llc	Landline
(301) 738	Potomac	Verizon Maryland, Inc.	Landline
(301) 861	Waldorf	Level 3 Communications, Llc - Md	Landline
(301) 674	Gaithersburg	Sprint Spectrum L.p.	Wireless
(301) 593	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 965	Temple Hills	Mcimetro Access Transmission Services Llc	Landline
(301) 566	Laurel	Verizon Maryland, Inc.	Wireless
(301) 299	Potomac	Verizon Maryland, Inc.	Landline
(301) 345	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 664	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 439	Takoma Park	Verizon Maryland, Inc.	Landline
(301) 545	Potomac	Verizon Maryland, Inc.	Landline
(301) 328	Silver Spring	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 595	Beltsville	Verizon Maryland, Inc.	Landline
(301) 983	Potomac	Verizon Maryland, Inc.	Landline
(301) 749	Oxon Hill	Verizon Maryland, Inc.	Landline
(301) 989	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 569	Gaithersburg	Cellco Partnership Dba Verizon Wireless - Md	Landline
(301) 654	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 466	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 720	Brandywine	Teleport Communications America, Llc - Dc	Landline
(301) 535	Waldorf	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 564	Kensington	Verizon Maryland, Inc.	Landline
(301) 698	Frederick	Verizon Maryland, Inc.	Landline
(301) 302	Hagerstown	Sprint Spectrum L.p. - Md	Landline
(301) 770	Kensington	Verizon Maryland, Inc.	Landline
(301) 754	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 850	Bowie	Level 3 Communications, Llc - Md	Landline
(301) 694	Frederick	Verizon Maryland, Inc.	Landline
(301) 437	Laurel	Sprint Spectrum L.p.	Wireless
(301) 522	Rockville	Verizon Maryland, Inc.	Wireless
(301) 226	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 557	Mechanicsville	Broadwing Communications. Llc - Md	Wireless
(301) 387	Mc Henry	Verizon Maryland, Inc.	Landline
(301) 919	Upper Marlboro	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 561	Silver Spring	Baltimore-washington Telephone Bwt	Landline
(301) 734	Riverdale	Verizon Maryland, Inc.	Landline
(301) 758	Jessup	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 860	Bowie	Verizon Maryland, Inc.	Landline
(301) 351	Gaithersburg	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 365	Potomac	Verizon Maryland, Inc.	Landline
(301) 765	Potomac	Verizon Maryland, Inc.	Landline
(301) 935	College Park	Verizon Maryland, Inc.	Landline
(301) 747	Temple Hills	Teleport Communications America, Llc - Dc	Landline
(301) 910	Chevy Chase	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 382	Rockville	Verizon Maryland, Inc.	Wireless
(301) 937	Beltsville	Verizon Maryland, Inc.	Landline
(301) 460	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 615	Riverdale	Verizon Maryland, Inc.	Wireless
(301) 788	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 885	Waldorf	Verizon Maryland, Inc.	Landline
(301) 717	District Heights	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 993	Riverdale	Verizon Maryland, Inc.	Wireless
(301) 616	Oakland	Uscoc of Cumberland, Inc. Dba United States Cel Md	Wireless
(301) 321	Rockville	Telcove Operations, Inc. - Md	Landline
(301) 313	Riverdale	Verizon Maryland, Inc.	Landline
(301) 940	Spencerville	Verizon Maryland, Inc.	Wireless
(301) 995	Patuxent River	Verizon Maryland, Inc.	Landline
(301) 526	Takoma Park	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 383	Lanham	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 465	Myersville	Sprint Spectrum L.p. - Md	Wireless
(301) 715	Upper Marlboro	Teleport Communications America, Llc - Dc	Landline
(301) 653	La Plata	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 591	Gaithersburg	Paetec Communications, Inc. - Md	Landline
(301) 853	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 598	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 448	Silver Spring	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(301) 673	Frederick	New Frontiers Telecommunications, Inc.	Landline
(301) 626	Silver Spring	Verizon Maryland, Inc.	Wireless
(301) 867	Bowie	Mcimetro Access Transmission Services Llc	Landline
(301) 764	Waldorf	Verizon Maryland, Inc.	Landline
(301) 695	Frederick	Verizon Maryland, Inc.	Landline
(301) 890	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 951	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 794	Lanham	Verizon Maryland, Inc.	Landline
(301) 316	Suitland	Verizon Maryland, Inc.	Landline
(301) 672	Callaway	Sprint Spectrum L.p.	Wireless
(301) 547	Baltimore	Teleport Communications America, Llc - Dc	Landline
(301) 239	Bladensburg	Verizon Maryland, Inc.	Wireless
(301) 576	Silver Spring	Paetec Communications, Inc. - Md	Landline
(301) 413	Rockville	Verizon Maryland, Inc.	Landline
(301) 458	Suitland	Teleport Communications America, Llc - Dc	Landline
(301) 697	Cumberland	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 562	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 914	College Park	Mountain Communications, Llc Dba Procom - Md	Wireless
(301) 471	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 388	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 335	Mount Airy	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 815	Frederick	Verizon Maryland, Inc.	Landline
(301) 565	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 656	Chevy Chase	Verizon Maryland, Inc.	Landline
(301) 440	Germantown	Sprint Spectrum L.p. - Md	Wireless
(301) 501	Oakland	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 228	Frederick	Verizon Maryland, Inc.	Landline
(301) 857	Clear Spring	Core Communications, Inc. - Md	Landline
(301) 690	Leonardtown	Idt America Corp - Md	Landline
(301) 509	Chevy Chase	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 622	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 360	Frederick	Verizon Maryland, Inc.	Landline
(301) 532	Riverdale	Verizon Maryland, Inc.	Wireless
(301) 224	Bethesda	Usa Mobility Wireless, Inc.	Wireless
(301) 960	Silver Spring	Mcimetro Access Transmission Services Llc	Landline
(301) 592	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 943	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 551	Bethesda	Baltimore-washington Telephone Bwt	Landline
(301) 662	Frederick	Verizon Maryland, Inc.	Landline
(301) 558	Riverdale	Usa Mobility Wireless, Inc.	Wireless
(301) 824	Smithsburg	Verizon Maryland, Inc.	Landline
(301) 303	Hyattsville	Usa Mobility Wireless, Inc.	Wireless
(301) 248	Fort Washington	Verizon Maryland, Inc.	Landline
(301) 936	Mount Rainier		Landline
(301) 384	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 202	Bethesda	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 778	District Heights	Mci Worldcom Communications, Inc. - Md	Landline
(301) 707	Gaithersburg	Uscoc of Cumberland, Inc. Dba United States Cel Md	Wireless
(301) 629	Bowie	Verizon Maryland, Inc.	Wireless
(301) 270	Takoma Park	Verizon Maryland, Inc.	Landline
(301) 822	Chevy Chase	At&t Local	Landline
(301) 285	Silver Spring	Verizon Maryland, Inc.	Wireless
(301) 613	Laurel	Sprint Spectrum L.p.	Wireless
(301) 512	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 427	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 542	Waldorf	Teleport Communications America, Llc - Dc	Landline
(301) 406	Potomac	Usa Mobility Wireless, Inc.	Wireless
(301) 300	Bethesda	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 573	Hagerstown	Sprint Spectrum L.p. - Md	Wireless
(301) 804	Ashton	Mcimetro Access Transmission Services Llc	Landline
(301) 732	Baltimore	Sprint Spectrum L.p.	Wireless
(301) 323	Laurel	Tw Telecom of Maryland Llc - Md	Landline
(301) 339	Towson	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(301) 635	Myersville	New Frontiers Telecommunications, Inc.	Landline
(301) 266	Waldorf	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 288	Rockville	Mcimetro Access Transmission Services Llc	Landline
(301) 231	Rockville	Verizon Maryland, Inc.	Landline
(301) 244	Damascus	Telcove Operations, Inc. - Md	Landline
(301) 991	Williamsport	Sprint Spectrum L.p. - Md	Wireless
(301) 917	Germantown	Starpower Communications, Llc - Md	Landline
(301) 314	College Park	Paetec Communications, Inc. - Md	Landline
(301) 528	Boyds	Verizon Maryland, Inc.	Landline
(301) 639	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 882	New Market	Core Communications, Inc. - Md	Landline
(301) 799	Keedysville	Core Communications, Inc. - Md	Landline
(301) 696	Frederick	Verizon Maryland, Inc.	Landline
(301) 510	Silver Spring	Usa Mobility Wireless, Inc.	Wireless
(301) 784	Flintstone	Verizon Maryland, Inc.	Landline
(301) 976	Capitol Heights	Baltimore-washington Telephone Bwt
(301) 275	Germantown	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 546	Cumberland	Usa Mobility Wireless, Inc.	Wireless
(301) 559	Hyattsville	Verizon Maryland, Inc.	Landline
(301) 900
(301) 816	Rockville	Verizon Maryland, Inc.	Landline
(301) 710	Waldorf	Level 3 Communications, Llc - Md	Landline
(301) 538	Rockville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 801	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 878	Baltimore	Verizon Maryland, Inc.	Landline
(301) 668	Frederick	Verizon Maryland, Inc.	Landline
(301) 438	Silver Spring	Verizon Maryland, Inc.	Landline
(301) 379	Silver Spring	Sprint Spectrum L.p.	Wireless
(301) 326	Silver Spring	Omnipoint Communications Cap Operations, Llc	Landline
(301) 468	Rockville	Verizon Maryland, Inc.	Landline
(301) 671	Hagerstown	New Frontiers Telecommunications, Inc.	Landline
(301) 704	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 829	Mount Airy	Verizon Maryland, Inc.	Landline
(301) 481	Mechanicsville	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(301) 385	Frederick	New Cingular Wireless Pcs, Llc - Dc	Wireless
(301) 780	Upper Marlboro	Verizon Maryland, Inc.	Landline
(301) 544	Rockville	Verizon Maryland, Inc.	Wireless
(301) 200	Indian Head	Bandwidth.com Clec, Llc - Md	Landline
(301) 242	Rockville	Mcimetro Access Transmission Services Llc	Landline