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
Stanislaus	(650) 269
Sacramento	(650) 331
San Luis Obispo	(650) 576
Marin	(650) 635
Orange	(650) 303

Telephone Carriers

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

Prefixes

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