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
Sacramento	(650) 331
Marin	(650) 635
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%
Xo California Inc	Landline	2%
Teleport Communications Group San Francisco	Landline	2%
Pac West Telecomm Inc	Landline	2%
Level 3 Communications Llc Ca	Landline	2%
Mcimetro Access Transmission Services Llc	Landline	2%
At T Local	Landline	1%
Astound Broadband Llc Ca	Landline	1%
Brooks Fiber Communications Of California Ca	Landline	1%
American Messaging Services Llc	Wireless	1%
Allegiance Telecom Inc Ca	Landline	1%
U S Telepacific Corp Ca	Landline	1%
O 1 Communications Inc Ca	Landline	1%
Broadwing Communications Llc Ca	Landline	1%
Mpower Communications Corp Ca	Landline	1%
Metro Pcs Inc	Wireless	1%
Tw Telecom Of California Lp Ca	Landline	1%
T Mobile Usa Inc	Wireless	1%
Mci Worldcom Communications Inc Ca	Landline	1%
Global Crossing Local Services Inc Ca	Landline	1%
Peerless Network Of California Llc Ca	Landline	< 1%
Cf Communications Llc Dba Telekenex Ca	Landline	< 1%
33 Wireless Inc	Wireless	< 1%
North County Communications Corp Ca	Landline	< 1%
Usa Mobility Wireless Inc	Wireless	< 1%
Sbc Internet Services Inc	Landline	< 1%
Utility Telephone Inc Ca	Landline	< 1%
American Messaging Am Inc	Wireless	< 1%
Cook Telecom Inc	Wireless	< 1%
The Telephone Connection Local Services Llc	Wireless	< 1%
Comcast Phone Of California Llc Ca	Landline	< 1%

Prefixes

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