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
San Diego	(650) 526 , (650) 815
Los Angeles	(650) 222 , (650) 784
Stanislaus	(650) 269
Marin	(650) 635
San Luis Obispo	(650) 576
Orange	(650) 303
Sacramento	(650) 331

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

Prefixes

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