650 Area Code in California, United States

Description

Area code 650 serves the San Francisco Peninsula, including cities such as Palo Alto, San Mateo, Redwood City, and Mountain View. It was created in 1997 as a split from area code 415 to accommodate the growing tech industry in Silicon Valley. The 650 region is home to Stanford University and the headquarters of major tech companies like Google and Meta (formerly Facebook). This area code is strongly associated with innovation, entrepreneurship, and high-tech culture. Despite increasing demand, 650 has remained a standalone code without an overlay, although ten-digit dialing may eventually be required. It’s frequently referenced in tech industry culture and is a point of regional pride. The 650 area is among the most affluent and connected in the country, making the area code a symbol of global technological leadership.

Time & Time Zone

Time zone:

Pacific (GMT -08:00)

Current time:

Map

Major Cities

City	Prefixes
Redwood City	(650) 206 , (650) 216 , (650) 218 , (650) 221 , (650) 227 , (650) 228 , (650) 232 , (650) 241 , (650) 257 , (650) 260 , (650) 261 , (650) 269 , (650) 274 , (650) 275 , (650) 277 , (650) 298 , (650) 299 , (650) 300 , (650) 304 , (650) 306 , (650) 332 , (650) 339 , (650) 352 , (650) 361 , (650) 362 , (650) 363 , (650) 364 , (650) 365 , (650) 366 , (650) 367 , (650) 368 , (650) 369 , (650) 381 , (650) 385 , (650) 389 , (650) 394 , (650) 395 , (650) 399 , (650) 400 , (650) 413 , (650) 421 , (650) 423 , (650) 434 , (650) 446 , (650) 453 , (650) 454 , (650) 464 , (650) 474 , (650) 480 , (650) 481 , (650) 482 , (650) 483 , (650) 486 , (650) 489 , (650) 500 , (650) 503 , (650) 506 , (650) 508 , (650) 513 , (650) 517 , (650) 529 , (650) 530 , (650) 539 , (650) 542 , (650) 549 , (650) 551 , (650) 556 , (650) 562 , (650) 568 , (650) 569 , (650) 581 , (650) 587 , (650) 591 , (650) 592 , (650) 593 , (650) 594 , (650) 595 , (650) 596 , (650) 598 , (650) 599 , (650) 610 , (650) 620 , (650) 622 , (650) 628 , (650) 631 , (650) 632 , (650) 636 , (650) 637 , (650) 649 , (650) 654 , (650) 670 , (650) 679 , (650) 683 , (650) 701 , (650) 716 , (650) 730 , (650) 752 , (650) 760 , (650) 766 , (650) 769 , (650) 771 , (650) 779 , (650) 780 , (650) 786 , (650) 796 , (650) 801 , (650) 802 , (650) 815 , (650) 817 , (650) 830 , (650) 832 , (650) 833 , (650) 839 , (650) 850 , (650) 851 , (650) 868 , (650) 888 , (650) 980 , (650) 995
Palo Alto	(650) 207 , (650) 213 , (650) 223 , (650) 236 , (650) 247 , (650) 248 , (650) 251 , (650) 252 , (650) 258 , (650) 280 , (650) 283 , (650) 289 , (650) 317 , (650) 320 , (650) 321 , (650) 322 , (650) 323 , (650) 324 , (650) 325 , (650) 326 , (650) 327 , (650) 328 , (650) 329 , (650) 330 , (650) 331 , (650) 353 , (650) 354 , (650) 370 , (650) 380 , (650) 384 , (650) 387 , (650) 391 , (650) 422 , (650) 424 , (650) 426 , (650) 427 , (650) 461 , (650) 462 , (650) 463 , (650) 465 , (650) 468 , (650) 470 , (650) 473 , (650) 475 , (650) 485 , (650) 493 , (650) 494 , (650) 496 , (650) 497 , (650) 498 , (650) 521 , (650) 526 , (650) 533 , (650) 543 , (650) 562 , (650) 565 , (650) 566 , (650) 569 , (650) 600 , (650) 614 , (650) 617 , (650) 618 , (650) 621 , (650) 630 , (650) 644 , (650) 646 , (650) 666 , (650) 681 , (650) 682 , (650) 687 , (650) 688 , (650) 690 , (650) 714 , (650) 721 , (650) 723 , (650) 724 , (650) 725 , (650) 736 , (650) 739 , (650) 740 , (650) 752 , (650) 776 , (650) 796 , (650) 798 , (650) 799 , (650) 800 , (650) 804 , (650) 812 , (650) 813 , (650) 814 , (650) 815 , (650) 833 , (650) 838 , (650) 842 , (650) 843 , (650) 845 , (650) 846 , (650) 847 , (650) 849 , (650) 852 , (650) 853 , (650) 855 , (650) 856 , (650) 857 , (650) 858 , (650) 859 , (650) 862 , (650) 906 , (650) 917 , (650) 919 , (650) 924 , (650) 930 , (650) 933 , (650) 934 , (650) 941 , (650) 948 , (650) 949 , (650) 999
San Mateo	(650) 200 , (650) 202 , (650) 207 , (650) 208 , (650) 212 , (650) 217 , (650) 220 , (650) 222 , (650) 227 , (650) 235 , (650) 240 , (650) 242 , (650) 245 , (650) 249 , (650) 270 , (650) 278 , (650) 286 , (650) 287 , (650) 288 , (650) 292 , (650) 293 , (650) 294 , (650) 295 , (650) 312 , (650) 333 , (650) 340 , (650) 341 , (650) 342 , (650) 343 , (650) 344 , (650) 345 , (650) 347 , (650) 348 , (650) 349 , (650) 350 , (650) 356 , (650) 357 , (650) 358 , (650) 372 , (650) 373 , (650) 375 , (650) 376 , (650) 377 , (650) 378 , (650) 389 , (650) 393 , (650) 398 , (650) 400 , (650) 401 , (650) 403 , (650) 408 , (650) 425 , (650) 430 , (650) 432 , (650) 444 , (650) 458 , (650) 477 , (650) 504 , (650) 513 , (650) 520 , (650) 522 , (650) 523 , (650) 524 , (650) 525 , (650) 532 , (650) 533 , (650) 548 , (650) 554 , (650) 558 , (650) 570 , (650) 571 , (650) 572 , (650) 573 , (650) 574 , (650) 577 , (650) 578 , (650) 579 , (650) 581 , (650) 612 , (650) 619 , (650) 627 , (650) 635 , (650) 638 , (650) 639 , (650) 645 , (650) 653 , (650) 655 , (650) 678 , (650) 685 , (650) 696 , (650) 762 , (650) 766 , (650) 773 , (650) 787 , (650) 808 , (650) 848 , (650) 863 , (650) 867 , (650) 888 , (650) 906 , (650) 918 , (650) 921 , (650) 931
Mountain View	(650) 207 , (650) 210 , (650) 214 , (650) 215 , (650) 224 , (650) 229 , (650) 230 , (650) 237 , (650) 253 , (650) 254 , (650) 265 , (650) 279 , (650) 282 , (650) 302 , (650) 314 , (650) 316 , (650) 318 , (650) 335 , (650) 336 , (650) 354 , (650) 383 , (650) 386 , (650) 390 , (650) 396 , (650) 400 , (650) 404 , (650) 406 , (650) 426 , (650) 428 , (650) 429 , (650) 431 , (650) 450 , (650) 464 , (650) 465 , (650) 472 , (650) 475 , (650) 482 , (650) 492 , (650) 526 , (650) 527 , (650) 528 , (650) 533 , (650) 537 , (650) 559 , (650) 564 , (650) 567 , (650) 575 , (650) 584 , (650) 603 , (650) 604 , (650) 605 , (650) 623 , (650) 625 , (650) 641 , (650) 645 , (650) 669 , (650) 688 , (650) 691 , (650) 693 , (650) 694 , (650) 743 , (650) 766 , (650) 793 , (650) 799 , (650) 810 , (650) 815 , (650) 846 , (650) 861 , (650) 864 , (650) 867 , (650) 903 , (650) 906 , (650) 917 , (650) 919 , (650) 930 , (650) 932 , (650) 934 , (650) 937 , (650) 938 , (650) 940 , (650) 941 , (650) 943 , (650) 944 , (650) 946 , (650) 947 , (650) 948 , (650) 949 , (650) 960 , (650) 961 , (650) 962 , (650) 963 , (650) 964 , (650) 965 , (650) 966 , (650) 967 , (650) 968 , (650) 969 , (650) 988 , (650) 996
Menlo Park	(650) 233 , (650) 234 , (650) 255 , (650) 261 , (650) 289 , (650) 298 , (650) 299 , (650) 321 , (650) 322 , (650) 323 , (650) 324 , (650) 325 , (650) 326 , (650) 327 , (650) 328 , (650) 329 , (650) 330 , (650) 331 , (650) 361 , (650) 363 , (650) 364 , (650) 365 , (650) 367 , (650) 368 , (650) 369 , (650) 374 , (650) 388 , (650) 400 , (650) 462 , (650) 463 , (650) 465 , (650) 470 , (650) 473 , (650) 474 , (650) 475 , (650) 482 , (650) 498 , (650) 532 , (650) 556 , (650) 561 , (650) 562 , (650) 566 , (650) 568 , (650) 569 , (650) 599 , (650) 614 , (650) 617 , (650) 687 , (650) 688 , (650) 701 , (650) 704 , (650) 724 , (650) 752 , (650) 761 , (650) 766 , (650) 780 , (650) 799 , (650) 833 , (650) 838 , (650) 847 , (650) 853 , (650) 854 , (650) 858 , (650) 859 , (650) 926 , (650) 943 , (650) 980
South San Francisco	(650) 219 , (650) 222 , (650) 225 , (650) 238 , (650) 244 , (650) 246 , (650) 266 , (650) 273 , (650) 291 , (650) 296 , (650) 360 , (650) 412 , (650) 416 , (650) 553 , (650) 562 , (650) 583 , (650) 588 , (650) 589 , (650) 615 , (650) 616 , (650) 624 , (650) 634 , (650) 635 , (650) 676 , (650) 737 , (650) 741 , (650) 742 , (650) 754 , (650) 755 , (650) 756 , (650) 757 , (650) 758 , (650) 761 , (650) 794 , (650) 808 , (650) 821 , (650) 825 , (650) 827 , (650) 829 , (650) 835 , (650) 837 , (650) 845 , (650) 866 , (650) 869 , (650) 870 , (650) 871 , (650) 872 , (650) 873 , (650) 875 , (650) 876 , (650) 877 , (650) 878 , (650) 952 , (650) 991 , (650) 992 , (650) 994 , (650) 996 , (650) 997
San Bruno	(650) 205 , (650) 208 , (650) 222 , (650) 225 , (650) 228 , (650) 238 , (650) 243 , (650) 244 , (650) 246 , (650) 256 , (650) 266 , (650) 355 , (650) 359 , (650) 382 , (650) 438 , (650) 467 , (650) 491 , (650) 515 , (650) 534 , (650) 545 , (650) 553 , (650) 557 , (650) 583 , (650) 588 , (650) 589 , (650) 615 , (650) 616 , (650) 624 , (650) 634 , (650) 635 , (650) 737 , (650) 738 , (650) 741 , (650) 742 , (650) 761 , (650) 794 , (650) 808 , (650) 821 , (650) 826 , (650) 827 , (650) 829 , (650) 834 , (650) 837 , (650) 866 , (650) 869 , (650) 871 , (650) 872 , (650) 873 , (650) 874 , (650) 875 , (650) 876 , (650) 877 , (650) 892 , (650) 922 , (650) 952
Los Altos	(650) 210 , (650) 224 , (650) 229 , (650) 237 , (650) 245 , (650) 254 , (650) 305 , (650) 314 , (650) 335 , (650) 383 , (650) 390 , (650) 397 , (650) 404 , (650) 428 , (650) 469 , (650) 476 , (650) 482 , (650) 483 , (650) 518 , (650) 526 , (650) 528 , (650) 559 , (650) 564 , (650) 567 , (650) 623 , (650) 625 , (650) 691 , (650) 694 , (650) 740 , (650) 823 , (650) 887 , (650) 903 , (650) 917 , (650) 919 , (650) 930 , (650) 934 , (650) 935 , (650) 938 , (650) 940 , (650) 941 , (650) 947 , (650) 948 , (650) 949 , (650) 960 , (650) 961 , (650) 962 , (650) 964 , (650) 965 , (650) 966 , (650) 967 , (650) 968 , (650) 969 , (650) 988
Millbrae	(650) 225 , (650) 239 , (650) 244 , (650) 259 , (650) 270 , (650) 307 , (650) 443 , (650) 447 , (650) 455 , (650) 490 , (650) 533 , (650) 552 , (650) 553 , (650) 583 , (650) 588 , (650) 589 , (650) 615 , (650) 616 , (650) 624 , (650) 634 , (650) 648 , (650) 652 , (650) 684 , (650) 689 , (650) 692 , (650) 697 , (650) 732 , (650) 737 , (650) 742 , (650) 759 , (650) 777 , (650) 794 , (650) 827 , (650) 829 , (650) 837 , (650) 866 , (650) 869 , (650) 871 , (650) 872 , (650) 873 , (650) 875 , (650) 876 , (650) 877 , (650) 888 , (650) 942 , (650) 952
Burlingame	(650) 201 , (650) 222 , (650) 227 , (650) 228 , (650) 231 , (650) 245 , (650) 246 , (650) 259 , (650) 281 , (650) 286 , (650) 292 , (650) 340 , (650) 342 , (650) 343 , (650) 344 , (650) 346 , (650) 347 , (650) 348 , (650) 373 , (650) 375 , (650) 381 , (650) 401 , (650) 403 , (650) 425 , (650) 433 , (650) 482 , (650) 524 , (650) 548 , (650) 552 , (650) 554 , (650) 558 , (650) 579 , (650) 648 , (650) 651 , (650) 652 , (650) 685 , (650) 692 , (650) 696 , (650) 697 , (650) 762 , (650) 777 , (650) 870 , (650) 876 , (650) 984
Belmont	(650) 226 , (650) 232 , (650) 255 , (650) 270 , (650) 274 , (650) 280 , (650) 304 , (650) 339 , (650) 394 , (650) 413 , (650) 453 , (650) 470 , (650) 486 , (650) 489 , (650) 500 , (650) 508 , (650) 517 , (650) 544 , (650) 551 , (650) 554 , (650) 585 , (650) 591 , (650) 592 , (650) 593 , (650) 594 , (650) 595 , (650) 596 , (650) 598 , (650) 610 , (650) 619 , (650) 620 , (650) 622 , (650) 631 , (650) 632 , (650) 637 , (650) 654 , (650) 688 , (650) 730 , (650) 801 , (650) 802 , (650) 830 , (650) 832
San Carlos	(650) 232 , (650) 264 , (650) 364 , (650) 365 , (650) 366 , (650) 412 , (650) 413 , (650) 444 , (650) 506 , (650) 508 , (650) 520 , (650) 533 , (650) 551 , (650) 590 , (650) 591 , (650) 592 , (650) 593 , (650) 594 , (650) 595 , (650) 596 , (650) 597 , (650) 598 , (650) 607 , (650) 610 , (650) 620 , (650) 622 , (650) 628 , (650) 631 , (650) 632 , (650) 633 , (650) 637 , (650) 642 , (650) 654 , (650) 701 , (650) 703 , (650) 802 , (650) 817 , (650) 867 , (650) 995

Counties

County	Prefixes
San Mateo	(650) 200 , (650) 201 , (650) 202 , (650) 205 , (650) 206 , (650) 207 , (650) 208 , (650) 212 , (650) 216 , (650) 217 , (650) 218 , (650) 219 , (650) 220 , (650) 221 , (650) 222 , (650) 225 , (650) 226 , (650) 227 , (650) 228 , (650) 231 , (650) 232 , (650) 233 , (650) 234 , (650) 235 , (650) 238 , (650) 239 , (650) 240 , (650) 241 , (650) 242 , (650) 243 , (650) 244 , (650) 245 , (650) 246 , (650) 249 , (650) 255 , (650) 256 , (650) 257 , (650) 259 , (650) 260 , (650) 261 , (650) 262 , (650) 263 , (650) 264 , (650) 266 , (650) 268 , (650) 269 , (650) 270 , (650) 273 , (650) 274 , (650) 275 , (650) 276 , (650) 277 , (650) 278 , (650) 280 , (650) 281 , (650) 284 , (650) 286 , (650) 287 , (650) 288 , (650) 289 , (650) 290 , (650) 291 , (650) 292 , (650) 293 , (650) 294 , (650) 295 , (650) 296 , (650) 297 , (650) 298 , (650) 299 , (650) 300 , (650) 301 , (650) 304 , (650) 306 , (650) 307 , (650) 312 , (650) 315 , (650) 321 , (650) 322 , (650) 323 , (650) 324 , (650) 325 , (650) 326 , (650) 327 , (650) 328 , (650) 329 , (650) 330 , (650) 331 , (650) 332 , (650) 333 , (650) 334 , (650) 337 , (650) 339 , (650) 340 , (650) 341 , (650) 342 , (650) 343 , (650) 344 , (650) 345 , (650) 346 , (650) 347 , (650) 348 , (650) 349 , (650) 350 , (650) 351 , (650) 352 , (650) 355 , (650) 356 , (650) 357 , (650) 358 , (650) 359 , (650) 360 , (650) 361 , (650) 362 , (650) 363 , (650) 364 , (650) 365 , (650) 366 , (650) 367 , (650) 368 , (650) 369 , (650) 371 , (650) 372 , (650) 373 , (650) 374 , (650) 375 , (650) 376 , (650) 377 , (650) 378 , (650) 381 , (650) 382 , (650) 385 , (650) 388 , (650) 389 , (650) 393 , (650) 394 , (650) 395 , (650) 398 , (650) 399 , (650) 400 , (650) 401 , (650) 403 , (650) 405 , (650) 407 , (650) 408 , (650) 409 , (650) 412 , (650) 413 , (650) 416 , (650) 419 , (650) 421 , (650) 423 , (650) 424 , (650) 425 , (650) 430 , (650) 432 , (650) 433 , (650) 434 , (650) 438 , (650) 440 , (650) 443 , (650) 444 , (650) 446 , (650) 447 , (650) 448 , (650) 453 , (650) 454 , (650) 455 , (650) 456 , (650) 458 , (650) 462 , (650) 463 , (650) 464 , (650) 465 , (650) 467 , (650) 470 , (650) 473 , (650) 474 , (650) 475 , (650) 477 , (650) 479 , (650) 480 , (650) 481 , (650) 482 , (650) 483 , (650) 486 , (650) 487 , (650) 489 , (650) 490 , (650) 491 , (650) 498 , (650) 500 , (650) 503 , (650) 504 , (650) 506 , (650) 508 , (650) 513 , (650) 515 , (650) 516 , (650) 517 , (650) 520 , (650) 522 , (650) 523 , (650) 524 , (650) 525 , (650) 529 , (650) 530 , (650) 532 , (650) 533 , (650) 534 , (650) 535 , (650) 538 , (650) 539 , (650) 542 , (650) 543 , (650) 544 , (650) 545 , (650) 548 , (650) 549 , (650) 550 , (650) 551 , (650) 552 , (650) 553 , (650) 554 , (650) 556 , (650) 557 , (650) 558 , (650) 560 , (650) 561 , (650) 562 , (650) 563 , (650) 566 , (650) 568 , (650) 569 , (650) 570 , (650) 571 , (650) 572 , (650) 573 , (650) 574 , (650) 577 , (650) 578 , (650) 579 , (650) 580 , (650) 581 , (650) 583 , (650) 585 , (650) 587 , (650) 588 , (650) 589 , (650) 590 , (650) 591 , (650) 592 , (650) 593 , (650) 594 , (650) 595 , (650) 596 , (650) 597 , (650) 598 , (650) 599 , (650) 607 , (650) 610 , (650) 612 , (650) 614 , (650) 615 , (650) 616 , (650) 617 , (650) 619 , (650) 620 , (650) 621 , (650) 622 , (650) 624 , (650) 627 , (650) 628 , (650) 631 , (650) 632 , (650) 633 , (650) 634 , (650) 635 , (650) 636 , (650) 637 , (650) 638 , (650) 639 , (650) 642 , (650) 645 , (650) 648 , (650) 649 , (650) 651 , (650) 652 , (650) 653 , (650) 654 , (650) 655 , (650) 662 , (650) 670 , (650) 673 , (650) 676 , (650) 678 , (650) 679 , (650) 683 , (650) 684 , (650) 685 , (650) 687 , (650) 688 , (650) 689 , (650) 692 , (650) 696 , (650) 697 , (650) 701 , (650) 703 , (650) 704 , (650) 712 , (650) 713 , (650) 716 , (650) 718 , (650) 719 , (650) 720 , (650) 724 , (650) 726 , (650) 728 , (650) 729 , (650) 730 , (650) 731 , (650) 732 , (650) 737 , (650) 738 , (650) 741 , (650) 742 , (650) 746 , (650) 747 , (650) 748 , (650) 752 , (650) 754 , (650) 755 , (650) 756 , (650) 757 , (650) 758 , (650) 759 , (650) 760 , (650) 761 , (650) 762 , (650) 766 , (650) 769 , (650) 771 , (650) 773 , (650) 777 , (650) 779 , (650) 780 , (650) 786 , (650) 787 , (650) 794 , (650) 795 , (650) 796 , (650) 799 , (650) 801 , (650) 802 , (650) 808 , (650) 815 , (650) 817 , (650) 821 , (650) 825 , (650) 826 , (650) 827 , (650) 829 , (650) 830 , (650) 832 , (650) 833 , (650) 834 , (650) 835 , (650) 837 , (650) 838 , (650) 839 , (650) 845 , (650) 847 , (650) 848 , (650) 850 , (650) 851 , (650) 853 , (650) 854 , (650) 858 , (650) 859 , (650) 860 , (650) 863 , (650) 866 , (650) 867 , (650) 868 , (650) 869 , (650) 870 , (650) 871 , (650) 872 , (650) 873 , (650) 874 , (650) 875 , (650) 876 , (650) 877 , (650) 878 , (650) 879 , (650) 881 , (650) 882 , (650) 888 , (650) 889 , (650) 892 , (650) 897 , (650) 898 , (650) 899 , (650) 906 , (650) 918 , (650) 921 , (650) 922 , (650) 926 , (650) 931 , (650) 942 , (650) 943 , (650) 944 , (650) 952 , (650) 980 , (650) 984 , (650) 985 , (650) 989 , (650) 991 , (650) 992 , (650) 993 , (650) 994 , (650) 995 , (650) 996 , (650) 997
Santa Clara	(650) 207 , (650) 208 , (650) 209 , (650) 210 , (650) 213 , (650) 214 , (650) 215 , (650) 223 , (650) 224 , (650) 227 , (650) 229 , (650) 230 , (650) 236 , (650) 237 , (650) 245 , (650) 246 , (650) 247 , (650) 248 , (650) 251 , (650) 252 , (650) 253 , (650) 254 , (650) 258 , (650) 265 , (650) 269 , (650) 270 , (650) 279 , (650) 280 , (650) 282 , (650) 283 , (650) 289 , (650) 302 , (650) 305 , (650) 308 , (650) 314 , (650) 316 , (650) 317 , (650) 318 , (650) 319 , (650) 320 , (650) 321 , (650) 322 , (650) 323 , (650) 324 , (650) 325 , (650) 326 , (650) 327 , (650) 328 , (650) 329 , (650) 330 , (650) 331 , (650) 335 , (650) 336 , (650) 353 , (650) 354 , (650) 370 , (650) 380 , (650) 383 , (650) 384 , (650) 386 , (650) 387 , (650) 389 , (650) 390 , (650) 391 , (650) 396 , (650) 397 , (650) 400 , (650) 404 , (650) 406 , (650) 417 , (650) 422 , (650) 424 , (650) 426 , (650) 427 , (650) 428 , (650) 429 , (650) 431 , (650) 450 , (650) 461 , (650) 462 , (650) 463 , (650) 464 , (650) 465 , (650) 468 , (650) 469 , (650) 470 , (650) 471 , (650) 472 , (650) 473 , (650) 475 , (650) 476 , (650) 481 , (650) 482 , (650) 483 , (650) 485 , (650) 492 , (650) 493 , (650) 494 , (650) 496 , (650) 497 , (650) 498 , (650) 518 , (650) 521 , (650) 526 , (650) 527 , (650) 528 , (650) 533 , (650) 537 , (650) 543 , (650) 559 , (650) 562 , (650) 564 , (650) 565 , (650) 566 , (650) 567 , (650) 569 , (650) 575 , (650) 584 , (650) 600 , (650) 603 , (650) 604 , (650) 605 , (650) 614 , (650) 617 , (650) 618 , (650) 621 , (650) 623 , (650) 625 , (650) 630 , (650) 641 , (650) 644 , (650) 645 , (650) 646 , (650) 666 , (650) 669 , (650) 681 , (650) 682 , (650) 687 , (650) 688 , (650) 690 , (650) 691 , (650) 693 , (650) 694 , (650) 714 , (650) 721 , (650) 722 , (650) 723 , (650) 724 , (650) 725 , (650) 736 , (650) 739 , (650) 740 , (650) 743 , (650) 749 , (650) 752 , (650) 766 , (650) 776 , (650) 793 , (650) 796 , (650) 798 , (650) 799 , (650) 800 , (650) 804 , (650) 810 , (650) 812 , (650) 813 , (650) 814 , (650) 815 , (650) 823 , (650) 833 , (650) 838 , (650) 842 , (650) 843 , (650) 845 , (650) 846 , (650) 847 , (650) 849 , (650) 852 , (650) 853 , (650) 855 , (650) 856 , (650) 857 , (650) 858 , (650) 859 , (650) 861 , (650) 862 , (650) 864 , (650) 867 , (650) 887 , (650) 900 , (650) 903 , (650) 906 , (650) 917 , (650) 919 , (650) 924 , (650) 930 , (650) 932 , (650) 933 , (650) 934 , (650) 935 , (650) 937 , (650) 938 , (650) 940 , (650) 941 , (650) 943 , (650) 944 , (650) 946 , (650) 947 , (650) 948 , (650) 949 , (650) 960 , (650) 961 , (650) 962 , (650) 963 , (650) 964 , (650) 965 , (650) 966 , (650) 967 , (650) 968 , (650) 969 , (650) 988 , (650) 996 , (650) 999
San Francisco	(650) 204 , (650) 266 , (650) 267 , (650) 271 , (650) 281 , (650) 295 , (650) 302 , (650) 392 , (650) 416 , (650) 444 , (650) 449 , (650) 451 , (650) 452 , (650) 466 , (650) 478 , (650) 488 , (650) 550 , (650) 569 , (650) 575 , (650) 614 , (650) 686 , (650) 733 , (650) 735 , (650) 745 , (650) 761 , (650) 763 , (650) 821 , (650) 985
Alameda	(650) 218 , (650) 222 , (650) 292 , (650) 767 , (650) 954
Santa Cruz	(650) 279 , (650) 464
Los Angeles	(650) 222 , (650) 784
San Diego	(650) 526 , (650) 815
Marin	(650) 635
Sacramento	(650) 331
Orange	(650) 303
Stanislaus	(650) 269
San Luis Obispo	(650) 576

Telephone Carriers

Carrier	Type	Prefixes (%)
Pacific Bell	Landline	62%
New Cingular Wireless Pcs Llc	Wireless	5%
Sprint Spectrum L P	Wireless	4%
Cellco Partnership Dba Verizon Wireless Ca	Wireless	3%
Mcimetro Access Transmission Services Llc	Landline	2%
Level 3 Communications Llc Ca	Landline	2%
Pac West Telecomm Inc	Landline	2%
Xo California Inc	Landline	2%
Teleport Communications Group San Francisco	Landline	2%
Broadwing Communications Llc Ca	Landline	1%
Global Crossing Local Services Inc Ca	Landline	1%
Metro Pcs Inc	Wireless	1%
T Mobile Usa Inc	Wireless	1%
O 1 Communications Inc Ca	Landline	1%
Allegiance Telecom Inc Ca	Landline	1%
Astound Broadband Llc Ca	Landline	1%
Mci Worldcom Communications Inc Ca	Landline	1%
American Messaging Services Llc	Wireless	1%
Brooks Fiber Communications Of California Ca	Landline	1%
Mpower Communications Corp Ca	Landline	1%
Tw Telecom Of California Lp Ca	Landline	1%
U S Telepacific Corp Ca	Landline	1%
At T Local	Landline	1%
Comcast Phone Of California Llc Ca	Landline	< 1%
North County Communications Corp Ca	Landline	< 1%
American Messaging Am Inc	Wireless	< 1%
Cf Communications Llc Dba Telekenex Ca	Wireless	< 1%
33 Wireless Inc	Wireless	< 1%
Peerless Network Of California Llc Ca	Landline	< 1%
Cook Telecom Inc	Wireless	< 1%
Sbc Internet Services Inc	Landline	< 1%
Usa Mobility Wireless Inc	Wireless	< 1%
Utility Telephone Inc Ca	Landline	< 1%
The Telephone Connection Local Services Llc	Wireless	< 1%

Prefixes

Prefix	City	Carrier	Type
(650) 295	San Francisco	Pacific Bell	Landline
(650) 796	Palo Alto	New Cingular Wireless Pcs, Llc	Wireless
(650) 498	Menlo Park	Level 3 Communications, Llc - Ca	Landline
(650) 579	Burlingame	Pacific Bell	Landline
(650) 869	San Bruno	Pacific Bell	Landline
(650) 380	Palo Alto	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 821	San Bruno	Teleport Communications Group - San Francisco	Landline
(650) 552	Burlingame	Pacific Bell	Landline
(650) 470	Palo Alto	Pacific Bell	Landline
(650) 304	Redwood City		Wireless
(650) 648	Millbrae	Allegiance Telecom, Inc. - Ca	Landline
(650) 422	Palo Alto	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 833	Palo Alto	Pacific Bell	Landline
(650) 385	Redwood City	Teleport Communications Group - San Francisco	Landline
(650) 532	Menlo Park	Mpower Communications Corp - Ca	Landline
(650) 515	San Bruno	Level 3 Communications, Llc - Ca	Landline
(650) 621	Daly City	Pacific Bell	Landline
(650) 244	San Bruno	Pacific Bell	Landline
(650) 605	Mountain View	Allegiance Telecom, Inc. - Ca	Landline
(650) 599	Redwood City	Pacific Bell	Landline
(650) 676	South San Francisco	Utility Telephone, Inc. - Ca	Landline
(650) 931	San Mateo	U.s. Telepacific Corp. - Ca	Landline
(650) 963	Mountain View	Pac - West Telecomm, Inc.	Landline
(650) 984	Burlingame	O1 Communications, Inc. - Ca	Landline
(650) 808	Brisbane	Pacific Bell	Landline
(650) 728	Moss Beach	Pacific Bell	Landline
(650) 299	Menlo Park	Pacific Bell	Landline
(650) 685	San Mateo	Pacific Bell	Landline
(650) 210	Sunnyvale	Pacific Bell	Landline
(650) 518	Los Altos	Metro Pcs, Inc.	Wireless
(650) 426	Palo Alto	Mcimetro Access Transmission Services Llc	Landline
(650) 749	Sunnyvale	Allegiance Telecom, Inc. - Ca	Landline
(650) 202	San Mateo	The Telephone Connection Local Services, Llc	Wireless
(650) 359	San Bruno	Pacific Bell	Landline
(650) 438	San Bruno	New Cingular Wireless Pcs, Llc	Wireless
(650) 218	Berkeley	Sprint Spectrum L.p.	Wireless
(650) 258	Palo Alto	Teleport Communications Group - San Francisco	Landline
(650) 542	Redwood City	Pacific Bell	Landline
(650) 829	Brisbane	Pacific Bell	Landline
(650) 480	Redwood City	Brooks Fiber Communications of California - Ca	Landline
(650) 387	Palo Alto	New Cingular Wireless Pcs, Llc	Wireless
(650) 506	Redwood City	Pacific Bell	Landline
(650) 551	San Carlos	Pacific Bell	Landline
(650) 946	Mountain View	Comcast Phone of California, Llc - Ca	Landline
(650) 724	Palo Alto	Level 3 Communications, Llc - Ca	Landline
(650) 390	Mountain View	Pacific Bell	Landline
(650) 328	Atherton	Pacific Bell	Landline
(650) 344	San Mateo	Pacific Bell	Landline
(650) 930	Palo Alto	Brooks Fiber Communications of California - Ca	Landline
(650) 294	San Mateo	Pacific Bell	Landline
(650) 761	San Francisco	Pacific Bell	Landline
(650) 769	Redwood City	Brooks Fiber Communications of California - Ca	Landline
(650) 631	San Carlos	Pacific Bell	Landline
(650) 416	South San Francisco	Mpower Communications Corp - Ca	Landline
(650) 287	San Mateo	Pacific Bell	Landline
(650) 965	Mountain View	Pacific Bell	Landline
(650) 497	Palo Alto	Level 3 Communications, Llc - Ca	Landline
(650) 300	Redwood City	Cf Communications, Llc Dba Telekenex - Ca	Wireless
(650) 688	Belmont	Pacific Bell	Landline
(650) 393	San Mateo	Tw Telecom of California Lp - Ca	Landline
(650) 298	Menlo Park	Pacific Bell	Landline
(650) 425	Burlingame	Mcimetro Access Transmission Services Llc	Landline
(650) 517	Belmont	U.s. Telepacific Corp. - Ca	Landline
(650) 716	Redwood City	Xo California, Inc.	Landline
(650) 322	Menlo Park	Pacific Bell	Landline
(650) 888	San Mateo	New Cingular Wireless Pcs, Llc	Wireless
(650) 731	Daly City	Astound Broadband, Llc - Ca	Landline
(650) 867	San Carlos	New Cingular Wireless Pcs, Llc	Wireless
(650) 345	San Mateo	Pacific Bell	Landline
(650) 559	Los Altos	Pacific Bell	Landline
(650) 935	Los Altos	Mcimetro Access Transmission Services Llc	Landline
(650) 795	La Honda	Mcimetro Access Transmission Services Llc	Landline
(650) 906	San Mateo	Sprint Spectrum L.p.	Wireless
(650) 233	Menlo Park	Pacific Bell	Landline
(650) 858	Menlo Park	Pacific Bell	Landline
(650) 624	Millbrae	Pacific Bell	Landline
(650) 941	Los Altos	Pacific Bell	Landline
(650) 944	Daly City	Pacific Bell	Landline
(650) 876	San Francisco	Pacific Bell	Landline
(650) 837	San Bruno	Pacific Bell	Landline
(650) 291	Pacifica	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 213	Stanford	Pacific Bell	Landline
(650) 478	San Francisco		Landline
(650) 340	San Mateo	Pacific Bell	Landline
(650) 318	Sunnyvale	Pacific Bell	Landline
(650) 752	Menlo Park	Pacific Bell	Landline
(650) 400	San Mateo	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 535	Moss Beach	U.s. Telepacific Corp. - Ca	Landline
(650) 234	Portola Valley	Pacific Bell	Landline
(650) 856	Palo Alto	Pacific Bell	Landline
(650) 324	Palo Alto	Pacific Bell	Landline
(650) 363	Menlo Park	Pacific Bell	Landline
(650) 327	Atherton	Pacific Bell	Landline
(650) 392	San Francisco	Tw Telecom of California Lp - Ca	Landline
(650) 563	Half Moon Bay	Pacific Bell	Landline
(650) 903	Los Altos	Pacific Bell	Landline
(650) 561	Portola Valley	Pacific Bell	Landline
(650) 568	Menlo Park	Pacific Bell	Landline
(650) 689	Millbrae	Teleport Communications Group - San Francisco	Landline
(650) 742	San Bruno	Pacific Bell	Landline
(650) 369	Menlo Park	Pacific Bell	Landline
(650) 662	La Honda	O1 Communications, Inc. - Ca	Landline
(650) 595	Redwood City	Pacific Bell	Landline
(650) 786	Redwood City	Pacific Bell	Landline
(650) 329	Menlo Park	Pacific Bell	Landline
(650) 572	San Mateo	Pacific Bell	Landline
(650) 303	Newport Beach	New Cingular Wireless Pcs, Llc	Wireless
(650) 417	San Jose	U.s. Telepacific Corp. - Ca	Landline
(650) 875	South San Francisco	Pacific Bell	Landline
(650) 999	Palo Alto	Cf Communications, Llc Dba Telekenex - Ca	Landline
(650) 567	Los Altos	Pacific Bell	Landline
(650) 952	Millbrae	Pacific Bell	Landline
(650) 323	Menlo Park	Pacific Bell	Landline
(650) 260	Redwood City	At&t Local	Landline
(650) 799	Palo Alto	New Cingular Wireless Pcs, Llc	Wireless
(650) 236	Palo Alto	Pacific Bell	Landline
(650) 464	Daly City	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 870	South San Francisco	Pac - West Telecomm, Inc.	Landline
(650) 969	Sunnyvale	Pacific Bell	Landline
(650) 431	Mountain View
(650) 610	San Carlos	Pacific Bell	Landline
(650) 967	Los Altos	Pacific Bell	Landline
(650) 220	San Mateo	American Messaging (am), Inc.	Wireless
(650) 736	Palo Alto	Level 3 Communications, Llc - Ca	Landline
(650) 428	Sunnyvale	Pacific Bell	Landline
(650) 274	Belmont	Sprint Spectrum L.p.	Wireless
(650) 266	Brisbane	Pacific Bell	Landline
(650) 697	Millbrae	Pacific Bell	Landline
(650) 737	San Bruno	Pacific Bell	Landline
(650) 525	San Mateo	Pacific Bell	Landline
(650) 530	Redwood City	Teleport Communications Group - San Francisco	Landline
(650) 725	Stanford	Level 3 Communications, Llc - Ca	Landline
(650) 849	Palo Alto	Pacific Bell	Landline
(650) 583	South San Francisco	Pacific Bell	Landline
(650) 760	Redwood City		Wireless
(650) 614	San Francisco	Pacific Bell	Landline
(650) 472	Mountain View	Broadwing Communications, Llc - Ca	Landline
(650) 562	Menlo Park	Pacific Bell	Landline
(650) 826	San Bruno	Sprint Spectrum L.p.	Wireless
(650) 592	Redwood City	Pacific Bell	Landline
(650) 776	Palo Alto	Sprint Spectrum L.p.	Wireless
(650) 238	San Bruno	Mci Worldcom Communications, Inc., Ca	Landline
(650) 962	Sunnyvale	Pacific Bell	Landline
(650) 354	Mountain View	Pacific Bell	Landline
(650) 757	South San Francisco	Pacific Bell	Landline
(650) 872	South San Francisco	Pacific Bell	Landline
(650) 469	Los Altos	Allegiance Telecom, Inc. - Ca	Landline
(650) 325	Palo Alto	Pacific Bell	Landline
(650) 573	San Mateo	Pacific Bell	Landline
(650) 855	Palo Alto	Pacific Bell	Landline
(650) 619	Belmont	New Cingular Wireless Pcs, Llc	Wireless
(650) 593	San Carlos	Pacific Bell	Landline
(650) 449	San Francisco	Allegiance Telecom, Inc. - Ca	Landline
(650) 632	Redwood City	Pacific Bell	Landline
(650) 342	San Mateo	Pacific Bell	Landline
(650) 486	Redwood City	Pacific Bell	Landline
(650) 279	Santa Cruz	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 429	Mountain View	Mci Worldcom Communications, Inc., Ca	Landline
(650) 991	South San Francisco	Pacific Bell	Landline
(650) 374	Menlo Park	Cook Telecom, Inc.	Wireless
(650) 877	San Bruno	Pacific Bell	Landline
(650) 779	Redwood City	Teleport Communications Group - San Francisco	Landline
(650) 479	Half Moon Bay	U.s. Telepacific Corp. - Ca	Landline
(650) 448	Half Moon Bay		Wireless
(650) 347	San Mateo	Pacific Bell	Landline
(650) 653	San Mateo	Mci Worldcom Communications, Inc., Ca	Landline
(650) 879	Pescadero	Pacific Bell	Landline
(650) 897	Moss Beach	Pac - West Telecomm, Inc.	Landline
(650) 419	La Honda	Tw Telecom of California Lp - Ca	Landline
(650) 302	Mountain View	New Cingular Wireless Pcs, Llc	Wireless
(650) 612	San Mateo	Pacific Bell	Wireless
(650) 320	Stanford	Pacific Bell	Landline
(650) 268	Pescadero	Xo California, Inc.	Landline
(650) 255	Belmont	New Cingular Wireless Pcs, Llc	Wireless
(650) 590	San Carlos	Pac - West Telecomm, Inc.	Landline
(650) 607	San Carlos	Pacific Bell	Landline
(650) 684	Millbrae	Pac - West Telecomm, Inc.	Landline
(650) 270	Los Gatos	Sprint Spectrum L.p.	Wireless
(650) 804	Palo Alto	New Cingular Wireless Pcs, Llc	Wireless
(650) 801	Belmont	Teleport Communications Group - San Francisco	Landline
(650) 219	South San Francisco	Sprint Spectrum L.p.	Wireless
(650) 581	San Mateo	Teleport Communications Group - San Francisco	Landline
(650) 224	Los Altos	New Cingular Wireless Pcs, Llc	Wireless
(650) 223	Palo Alto	Mpower Communications Corp - Ca	Landline
(650) 553	Millbrae	Pacific Bell	Landline
(650) 432	San Mateo	Pacific Bell	Landline
(650) 634	San Bruno	Pacific Bell	Landline
(650) 208	San Mateo	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 477	San Mateo	Cellco Partnership Dba Verizon Wireless - Ca	Landline
(650) 638	San Mateo	Pacific Bell	Landline
(650) 704	Menlo Park	New Cingular Wireless Pcs, Llc	Wireless
(650) 241	Redwood City	Level 3 Communications, Llc - Ca	Landline
(650) 696	Burlingame	Pacific Bell	Landline
(650) 232	Redwood City	Xo California, Inc.	Landline
(650) 620	Redwood City	Pacific Bell	Landline
(650) 839	Redwood City	Pacific Bell	Landline
(650) 861	Mountain View	T-mobile Usa, Inc.	Wireless
(650) 319	Sunnyvale	Allegiance Telecom, Inc. - Ca	Landline
(650) 591	San Carlos	Pacific Bell	Landline
(650) 733	San Francisco	Allegiance Telecom, Inc. - Ca	Landline
(650) 389	San Mateo	Mcimetro Access Transmission Services Llc	Landline
(650) 794	San Bruno	Pacific Bell	Landline
(650) 673	La Honda	Sbc Internet Services, Inc.	Landline
(650) 508	San Carlos	Pacific Bell	Landline
(650) 352	Daly City	Global Crossing Local Services, Inc.-ca	Landline
(650) 394	Belmont	Tw Telecom of California Lp - Ca	Landline
(650) 766	Redwood City	New Cingular Wireless Pcs, Llc	Wireless
(650) 762	San Mateo	Pacific Bell	Landline
(650) 735	San Francisco	Teleport Communications Group - San Francisco	Landline
(650) 690	Palo Alto	At&t Local	Landline
(650) 451	San Francisco	T-mobile Usa, Inc.	Landline
(650) 617	Menlo Park	Pacific Bell	Landline
(650) 569	San Francisco	Pacific Bell	Landline
(650) 652	Burlingame	Pacific Bell	Landline
(650) 482	Menlo Park	Pacific Bell	Landline
(650) 964	Mountain View	Pacific Bell	Landline
(650) 995	San Carlos	Pacific Bell	Landline
(650) 739	Palo Alto	Pacific Bell	Landline
(650) 848	San Mateo		Wireless
(650) 683	Redwood City	Sprint Spectrum L.p.	Wireless
(650) 286	San Mateo	Pacific Bell	Landline
(650) 366	San Carlos	Pacific Bell	Landline
(650) 615	South San Francisco	Pacific Bell	Landline
(650) 256	San Bruno	Cook Telecom, Inc.	Wireless
(650) 854	Menlo Park	Pacific Bell	Landline
(650) 527	Mountain View	Pacific Bell	Landline
(650) 292	Burlingame	Broadwing Communications, Llc - Ca	Landline
(650) 487	La Honda	U.s. Telepacific Corp. - Ca	Landline
(650) 373	San Mateo	Pacific Bell	Landline
(650) 628	Redwood City	Mcimetro Access Transmission Services Llc	Landline
(650) 239	Millbrae	Pac - West Telecomm, Inc.	Landline
(650) 364	Menlo Park	Pacific Bell	Landline
(650) 691	Los Altos	Pacific Bell	Landline
(650) 496	San Jose	Pacific Bell	Landline
(650) 645	Mountain View	Teleport Communications Group - San Francisco	Landline
(650) 721	Palo Alto	Level 3 Communications, Llc - Ca	Landline
(650) 740	Los Altos	New Cingular Wireless Pcs, Llc	Wireless
(650) 997	South San Francisco	Pacific Bell	Landline
(650) 694	Sunnyvale	Pacific Bell	Landline
(650) 832	Redwood City	Mpower Communications Corp - Ca	Landline
(650) 207	San Jose	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 493	Stanford	Pacific Bell	Landline
(650) 397	Los Altos	O1 Communications, Inc. - Ca	Landline
(650) 639	San Mateo	Cook Telecom, Inc.	Wireless
(650) 485	Stanford	Pacific Bell	Landline
(650) 333	San Mateo	Sprint Spectrum L.p.	Wireless
(650) 692	Millbrae	Pacific Bell	Landline
(650) 346	Burlingame	Sprint Spectrum L.p.	Wireless
(650) 564	Los Altos	Pacific Bell	Landline
(650) 526	Los Altos	Pacific Bell	Landline
(650) 427	Palo Alto	Mci Worldcom Communications, Inc., Ca	Landline
(650) 988	Sunnyvale	Pacific Bell	Landline
(650) 263	Moss Beach	Mci Worldcom Communications, Inc., Ca	Landline
(650) 334	Pescadero		Wireless
(650) 282	Mountain View	Astound Broadband, Llc - Ca	Landline
(650) 307	Millbrae	T-mobile Usa, Inc.	Wireless
(650) 461	Stanford	Pacific Bell	Landline
(650) 453	Redwood City	Global Crossing Local Services, Inc.-ca	Landline
(650) 513	Redwood City	Pacific Bell	Landline
(650) 222	Burlingame	Sprint Spectrum L.p.	Wireless
(650) 308	Stanford	Pacific Bell	Landline
(650) 763	San Francisco	Level 3 Communications, Llc - Ca	Landline
(650) 534	San Bruno	Brooks Fiber Communications of California - Ca	Landline
(650) 317	Palo Alto	Usa Mobility Wireless, Inc.	Wireless
(650) 524	San Mateo	Pacific Bell	Landline
(650) 670	Redwood City	Sprint Spectrum L.p.	Wireless
(650) 343	San Mateo	Pacific Bell	Landline
(650) 326	Menlo Park	Pacific Bell	Landline
(650) 316	Mountain View	Teleport Communications Group - San Francisco	Landline
(650) 306	Atherton	Pacific Bell	Landline
(650) 860	Pescadero	Broadwing Communications, Llc - Ca	Landline
(650) 231	Burlingame	Xo California, Inc.	Landline
(650) 830	Redwood City	Level 3 Communications, Llc - Ca	Landline
(650) 424	Stanford	Pacific Bell	Landline
(650) 312	San Mateo	Pacific Bell	Landline
(650) 375	Burlingame	Pacific Bell	Landline
(650) 474	Menlo Park	Pacific Bell	Landline
(650) 787	San Mateo	New Cingular Wireless Pcs, Llc	Wireless
(650) 635	South San Francisco	Pacific Bell	Landline
(650) 743	Mountain View	New Cingular Wireless Pcs, Llc	Wireless
(650) 873	South San Francisco	Pacific Bell	Landline
(650) 827	Millbrae	Pacific Bell	Landline
(650) 900	San Jose	O1 Communications, Inc. - Ca	Landline
(650) 798	Palo Alto	Teleport Communications Group - San Francisco	Landline
(650) 289	Menlo Park	Pacific Bell	Landline
(650) 463	Palo Alto	Pacific Bell	Landline
(650) 588	Millbrae	Pacific Bell	Landline
(650) 476	Los Altos		Wireless
(650) 589	Millbrae	Pacific Bell	Landline
(650) 399	Redwood City	O1 Communications, Inc. - Ca	Landline
(650) 948	Los Altos	Pacific Bell	Landline
(650) 759	Millbrae	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 866	Millbrae	Pacific Bell	Landline
(650) 863	San Mateo	New Cingular Wireless Pcs, Llc	Wireless
(650) 838	Palo Alto	Pacific Bell	Landline
(650) 465	Mountain View	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 871	South San Francisco	Pacific Bell	Landline
(650) 383	Los Altos	Teleport Communications Group - San Francisco	Landline
(650) 544	Belmont	Sprint Spectrum L.p.	Wireless
(650) 473	Menlo Park	Pacific Bell	Landline
(650) 846	Mountain View	Pacific Bell	Landline
(650) 616	South San Francisco	Pacific Bell	Landline
(650) 533	Millbrae	Sprint Spectrum L.p.	Wireless
(650) 321	Palo Alto	Pacific Bell	Landline
(650) 430	San Mateo	T-mobile Usa, Inc.	Wireless
(650) 550	San Francisco	Pacific Bell	Landline
(650) 954	Fremont	Sprint Spectrum L.p.	Wireless
(650) 215	Mountain View	Global Crossing Local Services, Inc.-ca	Landline
(650) 558	San Mateo	Pacific Bell	Landline
(650) 933	Palo Alto	Pacific Bell	Landline
(650) 777	Millbrae	Pacific Bell	Landline
(650) 462	Menlo Park	Pacific Bell	Landline
(650) 339	Belmont	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 413	San Carlos	Pacific Bell	Landline
(650) 679	Redwood City	Astound Broadband, Llc - Ca	Landline
(650) 578	San Mateo	Pacific Bell	Landline
(650) 365	Menlo Park	Pacific Bell	Landline
(650) 407	Moss Beach		Wireless
(650) 262	Pescadero	Level 3 Communications, Llc - Ca	Landline
(650) 654	Redwood City	Pacific Bell	Landline
(650) 370	Palo Alto	Cook Telecom, Inc.	Wireless
(650) 701	Menlo Park	Pacific Bell	Landline
(650) 802	Redwood City	Pacific Bell	Landline
(650) 468	Palo Alto	Sprint Spectrum L.p.	Wireless
(650) 622	San Carlos	Pacific Bell	Landline
(650) 330	Palo Alto	Pacific Bell	Landline
(650) 545	San Bruno	North County Communications Corp. - Ca	Landline
(650) 730	Belmont	Cellco Partnership Dba Verizon Wireless - Ca	Landline
(650) 248	Palo Alto	Sprint Spectrum L.p.	Wireless
(650) 646	Palo Alto	T-mobile Usa, Inc.	Wireless
(650) 937	San Jose	Pacific Bell	Landline
(650) 205	San Bruno	Usa Mobility Wireless, Inc.	Wireless
(650) 246	Santa Clara	Pacific Bell	Landline
(650) 748	La Honda	Teleport Communications Group - San Francisco	Landline
(650) 314	Sunnyvale	Pacific Bell	Landline
(650) 570	San Mateo	Pacific Bell	Landline
(650) 864	Mountain View	Pacific Bell	Landline
(650) 377	San Mateo	Pacific Bell	Landline
(650) 575	San Francisco	New Cingular Wireless Pcs, Llc	Wireless
(650) 682	Palo Alto	The Telephone Connection Local Services, Llc	Wireless
(650) 489	Redwood City	Level 3 Communications, Llc - Ca	Landline
(650) 355	San Bruno	Pacific Bell	Landline
(650) 348	Burlingame	Pacific Bell	Landline
(650) 381	Redwood City	Pacific Bell	Landline
(650) 847	Palo Alto	Mcimetro Access Transmission Services Llc	Landline
(650) 942	Millbrae	Mcimetro Access Transmission Services Llc	Landline
(650) 857	Stanford	Pacific Bell	Landline
(650) 227	Redwood City	Xo California, Inc.	Landline
(650) 361	Menlo Park	Pacific Bell	Landline
(650) 456	Pescadero	Pac - West Telecomm, Inc.	Landline
(650) 443	Millbrae	U.s. Telepacific Corp. - Ca	Landline
(650) 412	San Carlos	Allegiance Telecom, Inc. - Ca	Landline
(650) 966	Sunnyvale	Pacific Bell	Landline
(650) 747	La Honda	Pacific Bell	Landline
(650) 538	Pescadero	U.s. Telepacific Corp. - Ca	Landline
(650) 919	Los Altos	Pacific Bell	Landline
(650) 280	Palo Alto	Sprint Spectrum L.p.	Wireless
(650) 523	San Mateo	Pac - West Telecomm, Inc.	Landline
(650) 723	Stanford	Level 3 Communications, Llc - Ca	Landline
(650) 245	Los Altos	New Cingular Wireless Pcs, Llc	Wireless
(650) 372	San Mateo	Pacific Bell	Landline
(650) 947	Los Altos	Pacific Bell	Landline
(650) 548	Burlingame	Pacific Bell	Landline
(650) 580	Daly City	New Cingular Wireless Pcs, Llc	Wireless
(650) 483	Half Moon Bay	New Cingular Wireless Pcs, Llc	Wireless
(650) 598	Redwood City	Pacific Bell	Landline
(650) 405	Pacifica		Wireless
(650) 687	Palo Alto	Mci Worldcom Communications, Inc., Ca	Landline
(650) 813	Stanford	Pacific Bell	Landline
(650) 713	Half Moon Bay	Allegiance Telecom, Inc. - Ca	Landline
(650) 252	Palo Alto	Peerless Network of California, Llc - Ca	Landline
(650) 500	Redwood City	American Messaging Services, Llc	Wireless
(650) 403	San Mateo	Allegiance Telecom, Inc. - Ca	Landline
(650) 878	South San Francisco	Pacific Bell	Landline
(650) 404	Los Altos	Pacific Bell	Landline
(650) 293	San Mateo	Pacific Bell	Landline
(650) 332	Redwood City	Pac - West Telecomm, Inc.	Landline
(650) 943	Mountain View	Pacific Bell	Landline
(650) 341	San Mateo	Pacific Bell	Landline
(650) 597	San Carlos	Utility Telephone, Inc. - Ca	Landline
(650) 305	Los Altos	T-mobile Usa, Inc.	Wireless
(650) 726	El Granada	Pacific Bell	Landline
(650) 627	San Mateo	Pacific Bell	Landline
(650) 852	Stanford	Pacific Bell	Landline
(650) 276	Half Moon Bay	Tw Telecom of California Lp - Ca	Landline
(650) 395	Redwood City	Tw Telecom of California Lp - Ca	Landline
(650) 834	San Bruno	Metro Pcs, Inc.	Wireless
(650) 301	Daly City	Pacific Bell	Landline
(650) 887	Los Altos	Pac - West Telecomm, Inc.	Landline
(650) 251	Palo Alto	Pacific Bell	Landline
(650) 949	Los Altos	Pacific Bell	Landline
(650) 814	Palo Alto	Sprint Spectrum L.p.	Wireless
(650) 843	Palo Alto	Pacific Bell	Landline
(650) 815	Redwood City	Brooks Fiber Communications of California - Ca	Landline
(650) 566	Menlo Park	Pacific Bell	Landline
(650) 853	Palo Alto	Pacific Bell	Landline
(650) 892	San Bruno	New Cingular Wireless Pcs, Llc	Wireless
(650) 331	Palo Alto	Broadwing Communications, Llc - Ca	Landline
(650) 494	Palo Alto	Pacific Bell	Landline
(650) 278	San Mateo	T-mobile Usa, Inc.	Wireless
(650) 594	Redwood City	Pacific Bell	Landline
(650) 225	Millbrae	Pacific Bell	Landline
(650) 714	Palo Alto	New Cingular Wireless Pcs, Llc	Wireless
(650) 565	Palo Alto	Pacific Bell	Landline
(650) 520	San Carlos	Sprint Spectrum L.p.	Wireless
(650) 543	Atherton	U.s. Telepacific Corp. - Ca	Landline
(650) 623	Los Altos	Pacific Bell	Landline
(650) 756	South San Francisco	Pacific Bell	Landline
(650) 793	Mountain View	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 401	San Mateo	Pacific Bell	Landline
(650) 771	Redwood City	Metro Pcs, Inc.	Wireless
(650) 859	Menlo Park	Pacific Bell	Landline
(650) 269	Modesto	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 221	Redwood City	American Messaging Services, Llc	Wireless
(650) 992	South San Francisco	Pacific Bell	Landline
(650) 784	San Gabriel	Sprint Spectrum L.p.	Wireless
(650) 475	Mountain View	Xo California, Inc.	Landline
(650) 288	San Mateo	Level 3 Communications, Llc - Ca	Landline
(650) 290	Pacifica	Metro Pcs, Inc.	Landline
(650) 382	San Bruno		Wireless
(650) 216	Redwood City	Pacific Bell	Landline
(650) 217	San Mateo	Usa Mobility Wireless, Inc.	Wireless
(650) 556	Menlo Park	Pacific Bell	Landline
(650) 961	Los Altos	Pacific Bell	Landline
(650) 823	Los Altos	New Cingular Wireless Pcs, Llc	Wireless
(650) 625	Los Altos	Pacific Bell	Landline
(650) 384	Palo Alto	Teleport Communications Group - San Francisco	Landline
(650) 812	Palo Alto	Pacific Bell	Landline
(650) 934	Los Altos	Pacific Bell	Landline
(650) 718	Moss Beach	Teleport Communications Group - San Francisco	Landline
(650) 273	South San Francisco	Astound Broadband, Llc - Ca	Landline
(650) 257	Redwood City	Global Crossing Local Services, Inc.-ca	Landline
(650) 669	Mountain View	Metro Pcs, Inc.	Wireless
(650) 391	Palo Alto	Tw Telecom of California Lp - Ca	Landline
(650) 732	Millbrae	Cellco Partnership Dba Verizon Wireless - Ca	Landline
(650) 868	Redwood City	New Cingular Wireless Pcs, Llc	Wireless
(650) 554	Burlingame	Pacific Bell	Landline
(650) 637	Redwood City	Pacific Bell	Landline
(650) 693	Mountain View	Broadwing Communications, Llc - Ca	Landline
(650) 378	San Mateo	Pacific Bell	Landline
(650) 237	Los Altos	Pacific Bell	Landline
(650) 678	Pacifica	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 574	San Mateo	Pacific Bell	Landline
(650) 447	Millbrae		Wireless
(650) 767	Oakland		Landline
(650) 254	Los Altos	Pacific Bell	Landline
(650) 810	Mountain View	U.s. Telepacific Corp. - Ca	Landline
(650) 444	San Francisco	Sprint Spectrum L.p.	Wireless
(650) 259	Millbrae	Pacific Bell	Landline
(650) 423	Redwood City	Pac - West Telecomm, Inc.	Landline
(650) 780	Menlo Park	Pacific Bell	Landline
(650) 434	Redwood City	U.s. Telepacific Corp. - Ca	Landline
(650) 712	El Granada	Pacific Bell	Landline
(650) 596	Redwood City	Pacific Bell	Landline
(650) 644	Palo Alto	Pac - West Telecomm, Inc.	Landline
(650) 529	Redwood City	Pacific Bell	Landline
(650) 209	San Jose	U.s. Telepacific Corp. - Ca	Landline
(650) 560	El Granada	Pacific Bell	Landline
(650) 842	Palo Alto	Pacific Bell	Landline
(650) 817	Redwood City	Pacific Bell	Landline
(650) 522	San Mateo	Pacific Bell	Landline
(650) 357	San Mateo	Pacific Bell	Landline
(650) 755	South San Francisco	Pacific Bell	Landline
(650) 681	Palo Alto	O1 Communications, Inc. - Ca	Landline
(650) 360	South San Francisco	Pac - West Telecomm, Inc.	Landline
(650) 229	Los Altos	Xo California, Inc.	Landline
(650) 729	Half Moon Bay	Teleport Communications Group - San Francisco	Landline
(650) 440	Half Moon Bay	T-mobile Usa, Inc.	Wireless
(650) 367	Menlo Park	Pacific Bell	Landline
(650) 337	Pescadero	O1 Communications, Inc. - Ca	Landline
(650) 264	San Carlos	At&t Local	Landline
(650) 600	Palo Alto	Cf Communications, Llc Dba Telekenex - Ca	Landline
(650) 481	Redwood City	Mci Worldcom Communications, Inc., Ca	Landline
(650) 353	Palo Alto	Level 3 Communications, Llc - Ca	Landline
(650) 503	Redwood City	Mpower Communications Corp - Ca	Landline
(650) 362	Redwood City	Allegiance Telecom, Inc. - Ca	Landline
(650) 996	South San Francisco	New Cingular Wireless Pcs, Llc	Wireless
(650) 989	Half Moon Bay	Broadwing Communications, Llc - Ca	Landline
(650) 968	Sunnyvale	Pacific Bell	Landline
(650) 315	Brisbane	Sprint Spectrum L.p.	Wireless
(650) 549	Redwood City	Mcimetro Access Transmission Services Llc	Landline
(650) 491	San Bruno	Broadwing Communications, Llc - Ca	Landline
(650) 918	San Mateo	At&t Local	Landline
(650) 200	San Mateo	O1 Communications, Inc. - Ca	Landline
(650) 471	San Jose	Mpower Communications Corp - Ca	Landline
(650) 655	San Mateo	Pacific Bell	Landline
(650) 845	Palo Alto	Pacific Bell	Landline
(650) 253	Mountain View	Mci Worldcom Communications, Inc., Ca	Landline
(650) 773	San Mateo	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 576	Atascadero	New Cingular Wireless Pcs, Llc	Wireless
(650) 283	Palo Alto	T-mobile Usa, Inc.	Wireless
(650) 228	Brisbane	Xo California, Inc.	Landline
(650) 917	Los Altos	Pacific Bell	Landline
(650) 557	San Bruno	Pacific Bell	Landline
(650) 758	South San Francisco	Pacific Bell	Landline
(650) 651	Burlingame	Mci Worldcom Communications, Inc., Ca	Landline
(650) 421	Redwood City	U.s. Telepacific Corp. - Ca	Landline
(650) 539	Redwood City	T-mobile Usa, Inc.	Wireless
(650) 261	Menlo Park	Pacific Bell	Landline
(650) 938	Los Altos	Pacific Bell	Landline
(650) 368	Menlo Park	Pacific Bell	Landline
(650) 633	San Carlos	Pacific Bell	Landline
(650) 641	Mountain View	Broadwing Communications, Llc - Ca	Landline
(650) 466	San Francisco	Mcimetro Access Transmission Services Llc	Landline
(650) 649	Redwood City	Pac - West Telecomm, Inc.	Landline
(650) 980	Menlo Park	Xo California, Inc.	Landline
(650) 585	Belmont	Broadwing Communications, Llc - Ca	Landline
(650) 985	San Francisco	Pacific Bell	Landline
(650) 521	Palo Alto	Comcast Phone of California, Llc - Ca	Landline
(650) 454	Redwood City	New Cingular Wireless Pcs, Llc	Wireless
(650) 994	South San Francisco	Pacific Bell	Landline
(650) 537	Mountain View	Sprint Spectrum L.p.	Wireless
(650) 741	San Bruno	Pacific Bell	Landline
(650) 452	San Francisco	At&t Local	Landline
(650) 240	San Mateo	Pac - West Telecomm, Inc.	Landline
(650) 206	Redwood City	Mpower Communications Corp - Ca	Landline
(650) 528	Los Altos	Pacific Bell	Landline
(650) 851	Redwood City	Pacific Bell	Landline
(650) 618	Palo Alto	Pac - West Telecomm, Inc.	Landline
(650) 335	Los Altos	Pacific Bell	Landline
(650) 376	San Mateo	Global Crossing Local Services, Inc.-ca	Landline
(650) 214	Mountain View	Mci Worldcom Communications, Inc., Ca	Landline
(650) 825	South San Francisco	Mcimetro Access Transmission Services Llc	Landline
(650) 458	San Mateo	Astound Broadband, Llc - Ca	Landline
(650) 745	San Francisco	Teleport Communications Group - San Francisco	Landline
(650) 587	Redwood City	Broadwing Communications, Llc - Ca	Landline
(650) 898	Pacifica	Pac - West Telecomm, Inc.	Landline
(650) 271	San Francisco	Metro Pcs, Inc.	Wireless
(650) 358	San Mateo	Pacific Bell	Landline
(650) 351	Brisbane	Global Crossing Local Services, Inc.-ca	Landline
(650) 862	Palo Alto	New Cingular Wireless Pcs, Llc	Wireless
(650) 409	Brisbane	U.s. Telepacific Corp. - Ca	Landline
(650) 722	San Jose	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 433	Burlingame	Allegiance Telecom, Inc. - Ca	Landline
(650) 504	San Mateo	New Cingular Wireless Pcs, Llc	Wireless
(650) 571	San Mateo	Pacific Bell	Landline
(650) 249	San Mateo	Pac - West Telecomm, Inc.	Landline
(650) 738	San Bruno	Pacific Bell	Landline
(650) 882	Pescadero	Allegiance Telecom, Inc. - Ca	Landline
(650) 889	Half Moon Bay	O1 Communications, Inc. - Ca	Landline
(650) 408	San Mateo	American Messaging Services, Llc	Wireless
(650) 720	Half Moon Bay	Mcimetro Access Transmission Services Llc	Landline
(650) 993	Pacifica	Pacific Bell	Landline
(650) 686	San Francisco	Mcimetro Access Transmission Services Llc	Landline
(650) 754	South San Francisco	Pacific Bell	Landline
(650) 201	Burlingame	Sprint Spectrum L.p.	Wireless
(650) 940	Los Altos	Pacific Bell	Landline
(650) 371	Daly City	Usa Mobility Wireless, Inc.	Wireless
(650) 584	Mountain View	Pacific Bell	Landline
(650) 492	Mountain View	New Cingular Wireless Pcs, Llc	Wireless
(650) 960	Los Altos	Pacific Bell	Landline
(650) 490	Millbrae	New Cingular Wireless Pcs, Llc	Wireless
(650) 450	Mountain View	New Cingular Wireless Pcs, Llc	Wireless
(650) 275	Redwood City	Xo California, Inc.	Landline
(650) 746	Daly City	Pacific Bell	Landline
(650) 666	Palo Alto	Cf Communications, Llc Dba Telekenex - Ca	Landline
(650) 230	Mountain View	Xo California, Inc.	Landline
(650) 446	Redwood City	O1 Communications, Inc. - Ca	Landline
(650) 926	Menlo Park	Pacific Bell	Landline
(650) 296	South San Francisco	New Cingular Wireless Pcs, Llc	Wireless
(650) 281	Burlingame	Sprint Spectrum L.p.	Wireless
(650) 267	San Francisco	Level 3 Communications, Llc - Ca	Landline
(650) 924	Palo Alto	Sprint Spectrum L.p.	Wireless
(650) 336	Mountain View	Pacific Bell	Landline
(650) 398	San Mateo		Wireless
(650) 396	Mountain View	T-mobile Usa, Inc.	Landline
(650) 850	Redwood City	Allegiance Telecom, Inc. - Ca	Landline
(650) 642	San Carlos	Sprint Spectrum L.p.	Wireless
(650) 284	Half Moon Bay	Pac - West Telecomm, Inc.	Landline
(650) 455	Millbrae	New Cingular Wireless Pcs, Llc	Wireless
(650) 356	San Mateo	Pacific Bell	Landline
(650) 242	San Mateo	Level 3 Communications, Llc - Ca	Landline
(650) 899	La Honda	Pac - West Telecomm, Inc.	Landline
(650) 350	San Mateo	Pacific Bell	Landline
(650) 881	Pescadero	Teleport Communications Group - San Francisco	Landline
(650) 921	San Mateo	Metro Pcs, Inc.	Wireless
(650) 204	San Francisco	Tw Telecom of California Lp - Ca	Landline
(650) 636	Redwood City	Allegiance Telecom, Inc. - Ca	Landline
(650) 932	Mountain View	Pacific Bell	Landline
(650) 349	San Mateo	Pacific Bell	Landline
(650) 703	San Carlos	New Cingular Wireless Pcs, Llc	Wireless
(650) 388	Menlo Park	Mcimetro Access Transmission Services Llc	Landline
(650) 406	Mountain View	American Messaging Services, Llc	Wireless
(650) 719	Moss Beach	Allegiance Telecom, Inc. - Ca	Landline
(650) 922	San Bruno	Cellco Partnership Dba Verizon Wireless - Ca	Wireless
(650) 488	San Francisco	Teleport Communications Group - San Francisco	Landline
(650) 516	Pacifica	U.s. Telepacific Corp. - Ca	Landline
(650) 386	Mountain View	Teleport Communications Group - San Francisco	Landline
(650) 247	Palo Alto	American Messaging Services, Llc	Wireless
(650) 630	Palo Alto	Metro Pcs, Inc.	Wireless
(650) 577	San Mateo	Pacific Bell	Landline
(650) 235	San Mateo	Brooks Fiber Communications of California - Ca	Landline
(650) 603	Mountain View	Pacific Bell	Landline
(650) 874	San Bruno	Pacific Bell	Landline
(650) 604	Mountain View	Pacific Bell	Landline
(650) 800	Palo Alto	Cf Communications, Llc Dba Telekenex - Ca	Landline
(650) 265	Mountain View	At&t Local	Landline
(650) 226	Belmont	Mci Worldcom Communications, Inc., Ca	Landline
(650) 277	Redwood City	33 Wireless Inc.	Wireless
(650) 467	San Bruno	Pacific Bell	Landline
(650) 243	San Bruno	U.s. Telepacific Corp. - Ca	Landline
(650) 212	San Mateo	Pacific Bell	Landline
(650) 835	South San Francisco	O1 Communications, Inc. - Ca	Landline
(650) 297	Pescadero	Tw Telecom of California Lp - Ca	Landline