California
Area code 650
Area code 650 covers Palo Alto, San Mateo, Mountain View, South San Francisco, Redwood City and more in California, in the Pacific time zone. It has been in service since 1997.
WhereCalifornia
Time zonePacific
Exchanges717
Flagged numbers23120 complaints
Most reported 650 numbers
(650) 203-0000Shady callGoogle listings(650) 206-5555CautionGoogle listings(650) 450-4940Caution(650) 253-0000CautionGoogle listings(650) 215-5272Shady call(650) 215-5637Shady call(650) 215-5671Shady call(650) 215-5634Shady call(650) 204-1111CautionGoogle listings(650) 702-1070CautionIRS(650) 215-5255Shady call(650) 503-4700CautionHealth insurance(650) 835-1303CautionDebt relief / consolidation(650) 282-5555CautionHealth insurance(650) 215-5134CautionGoogle listings(650) 648-9898CautionMedicare / Medicaid(650) 250-4899CautionLegal actions(650) 464-2717Caution(650) 281-0757Caution(650) 216-7676Caution(650) 702-1059Caution(650) 412-7471Caution(650) 405-1057Caution
Carriers in 650
Line types
Counted over the exchanges, from the carrier each was assigned to.
Cities in area code 650
Palo AltoSan MateoMountain ViewSouth San FranciscoRedwood CitySan CarlosLos AltosMillbrae
Every 650 exchange
The first six digits of a number. Each one with 3 or more flagged numbers has its own page: who it was assigned to and the numbers in it.
| Exchange | City | Carrier | Type | Flagged |
|---|---|---|---|---|
| 650-200 | San Mateo | Twilio | VoIP | 0 |
| 650-201 | South San Francisco | T-Mobile | Wireless | 0 |
| 650-202 | San Mateo | Utility Telecom Group | Landline | 0 |
| 650-203 | Mountain View | Bandwidth | VoIP | 1 |
| 650-204 | Millbrae | Lumen (Level 3) | VoIP | 1 |
| 650-205 | South San Francisco | Spok (paging) | Pager | 0 |
| 650-206 | Woodside | Tpx Communications | Landline | 1 |
| 650-207 | Redwood City | Verizon Wireless | Wireless | 0 |
| 650-208 | Redwood City | Verizon Wireless | Wireless | 0 |
| 650-209 | Los Altos | Tpx Communications | Landline | 0 |
| 650-210 | Mountain View | AT&T | Landline | 0 |
| 650-212 | San Mateo | AT&T | Landline | 0 |
| 650-213 | Palo Alto | AT&T | Landline | 0 |
| 650-214 | Mountain View | Verizon Business | VoIP | 0 |
| 650-215 | Mountain View | Lumen (Level 3) | VoIP | 6 |
| 650-216 | Redwood City | AT&T | Landline | 1 |
| 650-217 | San Mateo | Spok (paging) | Pager | 0 |
| 650-218 | San Mateo | T-Mobile | Wireless | 0 |
| 650-219 | South San Francisco | T-Mobile | Wireless | 0 |
| 650-220 | Mountain View | T-Mobile | Wireless | 0 |
| 650-221 | South San Francisco | Shelcomm | Landline | 0 |
| 650-222 | San Mateo | T-Mobile | Wireless | 0 |
| 650-223 | Palo Alto | Tpx Communications | Landline | 0 |
| 650-224 | Mountain View | AT&T Mobility | Wireless | 0 |
| 650-225 | South San Francisco | AT&T | Landline | 0 |
| 650-226 | San Carlos | Verizon Business | VoIP | 0 |
| 650-227 | San Mateo | Verizon Business | VoIP | 0 |
| 650-228 | South San Francisco | Verizon Business | VoIP | 0 |
| 650-229 | Los Altos | Verizon Business | VoIP | 0 |
| 650-230 | Mountain View | Verizon Business | VoIP | 0 |
| 650-231 | Millbrae | Verizon Business | VoIP | 0 |
| 650-232 | San Carlos | Verizon Business | VoIP | 0 |
| 650-233 | Palo Alto | AT&T | Landline | 0 |
| 650-234 | Palo Alto | AT&T | Landline | 0 |
| 650-235 | San Mateo | Verizon Business | VoIP | 0 |
| 650-236 | Palo Alto | AT&T | Landline | 0 |
| 650-237 | Mountain View | AT&T | Landline | 0 |
| 650-238 | South San Francisco | Verizon Business | VoIP | 0 |
| 650-239 | Millbrae | Onvoy (Sinch) | VoIP | 0 |
| 650-240 | San Mateo | Onvoy (Sinch) | VoIP | 0 |
| 650-241 | Redwood City | Lumen (Level 3) | VoIP | 0 |
| 650-242 | San Mateo | Lumen (Level 3) | VoIP | 0 |
| 650-243 | South San Francisco | Tpx Communications | Landline | 0 |
| 650-244 | South San Francisco | AT&T | Landline | 0 |
| 650-245 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-246 | South San Francisco | AT&T | Landline | 0 |
| 650-247 | Woodside | Commio | VoIP | 0 |
| 650-248 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-249 | Redwood City | Onvoy (Sinch) | VoIP | 0 |
| 650-250 | Palo Alto | T-Mobile | Wireless | 1 |
| 650-251 | Palo Alto | AT&T | Landline | 0 |
| 650-252 | Palo Alto | Peerless Network | VoIP | 0 |
| 650-253 | Mountain View | Verizon Business | VoIP | 1 |
| 650-254 | Mountain View | AT&T | Landline | 0 |
| 650-255 | South San Francisco | AT&T Mobility | Wireless | 0 |
| 650-256 | South San Francisco | American Messaging Services | Landline | 0 |
| 650-257 | Redwood City | Lumen (Level 3) | VoIP | 0 |
| 650-258 | Palo Alto | AT&T | VoIP | 0 |
| 650-259 | Millbrae | AT&T | Landline | 0 |
| 650-260 | Redwood City | AT&T | Landline | 0 |
| 650-261 | Redwood City | AT&T | Landline | 0 |
| 650-262 | Pescadero | Lumen (Level 3) | VoIP | 0 |
| 650-263 | Mount Shasta | Verizon Business | VoIP | 0 |
| 650-264 | San Carlos | AT&T | Landline | 0 |
| 650-265 | Mountain View | AT&T | Landline | 0 |
| 650-266 | South San Francisco | AT&T | Landline | 0 |
| 650-267 | South San Francisco | Lumen (Level 3) | VoIP | 0 |
| 650-268 | Pescadero | Verizon Business | VoIP | 0 |
| 650-269 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-270 | South San Francisco | T-Mobile | Wireless | 0 |
| 650-271 | San Francisco | T-Mobile (Metro) | Wireless | 0 |
| 650-272 | Palo Alto | Verizon Business | VoIP | 0 |
| 650-273 | South San Francisco | Astound Broadband | Landline | 0 |
| 650-274 | San Mateo | T-Mobile | Wireless | 0 |
| 650-275 | Woodside | Verizon Business | VoIP | 0 |
| 650-276 | Half Moon Bay | Lumen (Level 3) | VoIP | 0 |
| 650-277 | Redwood City | 33 Wireless | Wireless | 0 |
| 650-278 | South San Francisco | T-Mobile | Wireless | 0 |
| 650-279 | Mountain View | Verizon Wireless | Wireless | 0 |
| 650-280 | Mountain View | T-Mobile (Metro) | Wireless | 0 |
| 650-281 | San Mateo | T-Mobile | Wireless | 1 |
| 650-282 | Mountain View | Astound Broadband | Landline | 1 |
| 650-283 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-284 | Half Moon Bay | T-Mobile | Wireless | 0 |
| 650-285 | Palo Alto | Bandwidth | VoIP | 0 |
| 650-286 | San Mateo | AT&T | Landline | 0 |
| 650-287 | San Mateo | AT&T | Landline | 0 |
| 650-288 | San Mateo | Lumen (Level 3) | VoIP | 0 |
| 650-289 | Palo Alto | AT&T | Landline | 0 |
| 650-290 | Pacifica | T-Mobile (Metro) | Wireless | 0 |
| 650-291 | South San Francisco | Verizon Wireless | Wireless | 0 |
| 650-292 | San Mateo | Lumen (Level 3) | VoIP | 0 |
| 650-293 | San Mateo | AT&T | Landline | 0 |
| 650-294 | San Mateo | AT&T | Landline | 0 |
| 650-295 | San Mateo | AT&T | Landline | 0 |
| 650-296 | South San Francisco | AT&T Mobility | Wireless | 0 |
| 650-297 | Pescadero | Lumen (Level 3) | VoIP | 0 |
| 650-298 | Redwood City | AT&T | Landline | 0 |
| 650-299 | Redwood City | AT&T | Landline | 0 |
| 650-300 | Palo Alto | Onvoy (Sinch) | VoIP | 0 |
| 650-301 | San Francisco | AT&T | Landline | 0 |
| 650-302 | Millbrae | AT&T Mobility | Wireless | 0 |
| 650-303 | South San Francisco | AT&T Mobility | Wireless | 0 |
| 650-304 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-305 | Los Altos | T-Mobile | Wireless | 0 |
| 650-306 | Redwood City | AT&T | Landline | 0 |
| 650-307 | Millbrae | T-Mobile | Wireless | 0 |
| 650-308 | Palo Alto | AT&T | Landline | 0 |
| 650-309 | Half Moon Bay | T-Mobile | Wireless | 0 |
| 650-312 | San Mateo | AT&T | Landline | 0 |
| 650-313 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-314 | Mountain View | AT&T | Landline | 0 |
| 650-315 | San Mateo | T-Mobile | Wireless | 0 |
| 650-316 | Mountain View | AT&T | VoIP | 0 |
| 650-317 | Mountain View | Spok (paging) | Pager | 0 |
| 650-318 | Mountain View | AT&T | Landline | 0 |
| 650-319 | Palo Alto | Verizon Business | VoIP | 0 |
| 650-320 | Palo Alto | AT&T | Landline | 0 |
| 650-321 | Palo Alto | AT&T | Landline | 0 |
| 650-322 | Palo Alto | AT&T | Landline | 0 |
| 650-323 | Palo Alto | AT&T | Landline | 0 |
| 650-324 | Palo Alto | AT&T | Landline | 0 |
| 650-325 | Palo Alto | AT&T | Landline | 0 |
| 650-326 | Palo Alto | AT&T | Landline | 0 |
| 650-327 | Palo Alto | AT&T | Landline | 0 |
| 650-328 | Palo Alto | AT&T | Landline | 0 |
| 650-329 | Palo Alto | AT&T | Landline | 0 |
| 650-330 | Palo Alto | AT&T | Landline | 0 |
| 650-331 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-332 | Woodside | Lumen (Level 3) | VoIP | 0 |
| 650-333 | South San Francisco | T-Mobile | Wireless | 0 |
| 650-334 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-335 | Mountain View | AT&T | Landline | 0 |
| 650-336 | Mountain View | AT&T | Landline | 0 |
| 650-337 | Pescadero | Onvoy (Sinch) | VoIP | 0 |
| 650-338 | Half Moon Bay | T-Mobile | Wireless | 0 |
| 650-339 | San Carlos | Verizon Wireless | Wireless | 0 |
| 650-340 | San Mateo | AT&T | Landline | 0 |
| 650-341 | San Mateo | AT&T | Landline | 0 |
| 650-342 | San Mateo | AT&T | Landline | 0 |
| 650-343 | San Mateo | AT&T | Landline | 0 |
| 650-344 | San Mateo | AT&T | Landline | 0 |
| 650-345 | San Mateo | AT&T | Landline | 0 |
| 650-346 | San Mateo | T-Mobile | Wireless | 0 |
| 650-347 | San Mateo | AT&T | Landline | 0 |
| 650-348 | San Mateo | AT&T | Landline | 0 |
| 650-349 | San Mateo | AT&T | Landline | 0 |
| 650-350 | San Mateo | AT&T | Landline | 0 |
| 650-351 | South San Francisco | Lumen (Level 3) | VoIP | 0 |
| 650-352 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-353 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-354 | Palo Alto | AT&T | Landline | 0 |
| 650-355 | Pacifica | AT&T | Landline | 0 |
| 650-356 | San Mateo | AT&T | Landline | 0 |
| 650-357 | San Mateo | AT&T | Landline | 0 |
| 650-358 | San Mateo | AT&T | Landline | 0 |
| 650-359 | Pacifica | AT&T | Landline | 0 |
| 650-360 | South San Francisco | Onvoy (Sinch) | VoIP | 0 |
| 650-361 | Redwood City | AT&T | Landline | 0 |
| 650-362 | Redwood City | Verizon Business | VoIP | 0 |
| 650-363 | Redwood City | AT&T | Landline | 0 |
| 650-364 | Redwood City | AT&T | Landline | 0 |
| 650-365 | Redwood City | AT&T | Landline | 0 |
| 650-366 | Redwood City | AT&T | Landline | 0 |
| 650-367 | Redwood City | AT&T | Landline | 0 |
| 650-368 | Redwood City | AT&T | Landline | 0 |
| 650-369 | Redwood City | AT&T | Landline | 0 |
| 650-370 | Palo Alto | Bandwidth | VoIP | 0 |
| 650-371 | San Mateo | Spok (paging) | Pager | 0 |
| 650-372 | San Mateo | AT&T | Landline | 0 |
| 650-373 | San Mateo | AT&T | Landline | 0 |
| 650-374 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-375 | San Mateo | AT&T | Landline | 0 |
| 650-376 | San Mateo | Lumen (Level 3) | VoIP | 0 |
| 650-377 | San Mateo | AT&T | Landline | 0 |
| 650-378 | San Mateo | AT&T | Landline | 0 |
| 650-379 | South San Francisco | Verizon Business | VoIP | 0 |
| 650-380 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-381 | Redwood City | AT&T | Landline | 0 |
| 650-382 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-383 | Los Altos | AT&T | VoIP | 0 |
| 650-384 | Palo Alto | AT&T | VoIP | 0 |
| 650-385 | Redwood City | AT&T | VoIP | 0 |
| 650-386 | Mountain View | AT&T | VoIP | 0 |
| 650-387 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-388 | Palo Alto | Verizon Business | VoIP | 0 |
| 650-389 | San Mateo | Verizon Business | VoIP | 0 |
| 650-390 | Mountain View | AT&T | Landline | 0 |
| 650-391 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-392 | South San Francisco | Lumen (Level 3) | VoIP | 0 |
| 650-393 | San Mateo | Lumen (Level 3) | VoIP | 0 |
| 650-394 | San Carlos | Lumen (Level 3) | VoIP | 0 |
| 650-395 | Redwood City | Lumen (Level 3) | VoIP | 0 |
| 650-396 | Mountain View | T-Mobile | Wireless | 0 |
| 650-397 | Los Altos | Bandwidth | VoIP | 0 |
| 650-398 | San Mateo | Verizon Wireless | Wireless | 0 |
| 650-399 | Redwood City | Onvoy (Sinch) | VoIP | 0 |
| 650-400 | Redwood City | Verizon Wireless | Wireless | 0 |
| 650-401 | San Mateo | AT&T | Landline | 0 |
| 650-402 | Half Moon Bay | T-Mobile | Wireless | 0 |
| 650-403 | San Mateo | Verizon Business | VoIP | 0 |
| 650-404 | Mountain View | AT&T | Landline | 0 |
| 650-405 | Los Altos | AT&T Mobility | Wireless | 1 |
| 650-406 | Mountain View | American Messaging Services | Landline | 0 |
| 650-407 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-408 | Mountain View | AT&T Mobility | Wireless | 0 |
| 650-409 | Millbrae | Tpx Communications | Landline | 0 |
| 650-410 | South San Francisco | Onvoy (Sinch) | VoIP | 0 |
| 650-412 | San Carlos | Verizon Business | VoIP | 1 |
| 650-413 | San Carlos | AT&T | Landline | 0 |
| 650-414 | Redwood City | AT&T | VoIP | 0 |
| 650-416 | South San Francisco | Tpx Communications | Landline | 0 |
| 650-417 | Mountain View | Tpx Communications | Landline | 0 |
| 650-418 | San Mateo | Verizon Wireless | Wireless | 0 |
| 650-419 | La Honda | Lumen (Level 3) | VoIP | 0 |
| 650-420 | Pacifica | T-Mobile | Wireless | 0 |
| 650-421 | Redwood City | Tpx Communications | Landline | 0 |
| 650-422 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-423 | Redwood City | Utility Telecom Group | Landline | 0 |
| 650-424 | Palo Alto | AT&T | Landline | 0 |
| 650-425 | San Mateo | Verizon Business | VoIP | 0 |
| 650-426 | Mountain View | Verizon Business | VoIP | 0 |
| 650-427 | Palo Alto | Verizon Business | VoIP | 0 |
| 650-428 | Mountain View | AT&T | Landline | 0 |
| 650-429 | Mountain View | Verizon Business | VoIP | 0 |
| 650-430 | San Mateo | T-Mobile | Wireless | 0 |
| 650-431 | San Mateo | T-Mobile | Wireless | 0 |
| 650-432 | San Mateo | AT&T | Landline | 0 |
| 650-433 | Palo Alto | Verizon Business | VoIP | 0 |
| 650-434 | Woodside | Tpx Communications | Landline | 0 |
| 650-435 | San Mateo | Verizon Wireless | Wireless | 0 |
| 650-436 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-437 | San Mateo | Bandwidth | VoIP | 0 |
| 650-438 | South San Francisco | AT&T Mobility | Wireless | 0 |
| 650-439 | Mountain View | AT&T Mobility | Wireless | 0 |
| 650-440 | Half Moon Bay | T-Mobile | Wireless | 0 |
| 650-441 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-442 | South San Francisco | Bandwidth | VoIP | 0 |
| 650-443 | Millbrae | Tpx Communications | Landline | 0 |
| 650-444 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-445 | San Mateo | T-Mobile | Wireless | 0 |
| 650-446 | Woodside | Bandwidth | VoIP | 0 |
| 650-447 | Mountain View | T-Mobile | Wireless | 0 |
| 650-448 | Mountain View | Peerless Network | VoIP | 0 |
| 650-449 | San Francisco | Verizon Business | VoIP | 0 |
| 650-450 | Mountain View | AT&T Mobility | Wireless | 1 |
| 650-451 | Pacifica | T-Mobile | Wireless | 0 |
| 650-452 | South San Francisco | AT&T | Landline | 0 |
| 650-453 | San Carlos | Lumen (Level 3) | VoIP | 0 |
| 650-454 | Redwood City | AT&T Mobility | Wireless | 0 |
| 650-455 | Millbrae | AT&T Mobility | Wireless | 0 |
| 650-456 | Pescadero | Onvoy (Sinch) | VoIP | 0 |
| 650-457 | South San Francisco | AT&T Mobility | Wireless | 0 |
| 650-458 | San Mateo | Astound Broadband | Landline | 0 |
| 650-459 | Half Moon Bay | Bandwidth | VoIP | 0 |
| 650-460 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-461 | Palo Alto | AT&T | Landline | 0 |
| 650-462 | Palo Alto | AT&T | Landline | 0 |
| 650-463 | Palo Alto | AT&T | Landline | 0 |
| 650-464 | Redwood City | Verizon Wireless | Wireless | 1 |
| 650-465 | Redwood City | Verizon Wireless | Wireless | 0 |
| 650-466 | San Francisco | AT&T | Landline | 0 |
| 650-467 | South San Francisco | AT&T | Landline | 0 |
| 650-468 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-469 | Los Altos | Verizon Business | VoIP | 0 |
| 650-470 | Palo Alto | AT&T | Landline | 0 |
| 650-471 | Los Altos | Tpx Communications | Landline | 0 |
| 650-472 | Los Altos | Lumen (Level 3) | VoIP | 0 |
| 650-473 | Palo Alto | AT&T | Landline | 0 |
| 650-474 | Redwood City | AT&T | Landline | 0 |
| 650-475 | Palo Alto | Verizon Business | VoIP | 0 |
| 650-476 | Half Moon Bay | T-Mobile | Wireless | 0 |
| 650-477 | San Mateo | Verizon Wireless | Wireless | 0 |
| 650-479 | Half Moon Bay | Tpx Communications | Landline | 0 |
| 650-480 | Redwood City | Verizon Business | VoIP | 0 |
| 650-481 | Redwood City | Verizon Business | VoIP | 0 |
| 650-482 | Redwood City | AT&T | Landline | 0 |
| 650-483 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-484 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-485 | Palo Alto | AT&T | Landline | 0 |
| 650-486 | San Carlos | AT&T | Landline | 0 |
| 650-487 | La Honda | Tpx Communications | Landline | 0 |
| 650-488 | San Francisco | AT&T | VoIP | 0 |
| 650-489 | San Carlos | Lumen (Level 3) | VoIP | 0 |
| 650-490 | Millbrae | AT&T Mobility | Wireless | 0 |
| 650-491 | South San Francisco | Lumen (Level 3) | VoIP | 0 |
| 650-492 | Los Altos | AT&T Mobility | Wireless | 0 |
| 650-493 | Palo Alto | AT&T | Landline | 0 |
| 650-494 | Palo Alto | AT&T | Landline | 0 |
| 650-495 | Mountain View | T-Mobile | Wireless | 0 |
| 650-496 | Palo Alto | AT&T | Landline | 0 |
| 650-497 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-498 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-499 | Mountain View | Bandwidth | VoIP | 0 |
| 650-500 | San Carlos | American Messaging Services | Landline | 0 |
| 650-501 | Pacifica | Bandwidth | VoIP | 0 |
| 650-502 | South San Francisco | Bandwidth | VoIP | 0 |
| 650-503 | Redwood City | Tpx Communications | Landline | 1 |
| 650-504 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-505 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-506 | San Carlos | AT&T | Landline | 0 |
| 650-507 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-508 | San Carlos | AT&T | Landline | 0 |
| 650-509 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-512 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-513 | San Mateo | AT&T | Landline | 0 |
| 650-514 | San Mateo | Lumen (Level 3) | VoIP | 0 |
| 650-515 | South San Francisco | Lumen (Level 3) | VoIP | 0 |
| 650-516 | Pacifica | Tpx Communications | Landline | 0 |
| 650-517 | San Carlos | Tpx Communications | Landline | 0 |
| 650-518 | Los Altos | T-Mobile (Metro) | Wireless | 0 |
| 650-519 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-520 | San Mateo | T-Mobile | Wireless | 0 |
| 650-521 | Palo Alto | Comcast (Xfinity) | Landline | 0 |
| 650-522 | San Mateo | AT&T | Landline | 0 |
| 650-523 | San Mateo | Onvoy (Sinch) | VoIP | 0 |
| 650-524 | San Mateo | AT&T | Landline | 0 |
| 650-525 | San Mateo | AT&T | Landline | 0 |
| 650-526 | Mountain View | AT&T | Landline | 0 |
| 650-527 | Mountain View | AT&T | Landline | 0 |
| 650-528 | Mountain View | AT&T | Landline | 0 |
| 650-529 | Woodside | AT&T | Landline | 0 |
| 650-530 | Woodside | AT&T | VoIP | 0 |
| 650-531 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-532 | San Mateo | Tpx Communications | Landline | 0 |
| 650-533 | San Mateo | T-Mobile (Metro) | Wireless | 0 |
| 650-534 | South San Francisco | Verizon Business | VoIP | 0 |
| 650-535 | Mount Shasta | Tpx Communications | Landline | 0 |
| 650-536 | San Francisco | Telnyx | VoIP | 0 |
| 650-537 | Mountain View | T-Mobile | Wireless | 0 |
| 650-538 | Pescadero | Tpx Communications | Landline | 0 |
| 650-539 | San Mateo | T-Mobile | Wireless | 0 |
| 650-540 | South San Francisco | AT&T | VoIP | 0 |
| 650-541 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-542 | Redwood City | AT&T | Landline | 0 |
| 650-543 | Palo Alto | Tpx Communications | Landline | 0 |
| 650-544 | San Mateo | T-Mobile | Wireless | 0 |
| 650-545 | Mountain View | North County Communication | Landline | 0 |
| 650-546 | Palo Alto | AT&T | VoIP | 0 |
| 650-547 | Woodside | AT&T Mobility | Wireless | 0 |
| 650-548 | San Mateo | AT&T | Landline | 0 |
| 650-549 | Redwood City | Verizon Business | VoIP | 0 |
| 650-550 | San Francisco | AT&T | Landline | 0 |
| 650-551 | San Carlos | AT&T | Landline | 0 |
| 650-552 | Millbrae | AT&T | Landline | 0 |
| 650-553 | South San Francisco | AT&T | Landline | 0 |
| 650-554 | San Mateo | AT&T | Landline | 0 |
| 650-556 | Redwood City | AT&T | Landline | 0 |
| 650-557 | Pacifica | AT&T | Landline | 0 |
| 650-558 | San Mateo | AT&T | Landline | 0 |
| 650-559 | Los Altos | AT&T | Landline | 0 |
| 650-560 | Half Moon Bay | AT&T | Landline | 0 |
| 650-561 | Palo Alto | AT&T | Landline | 0 |
| 650-562 | Redwood City | AT&T | Landline | 0 |
| 650-563 | Mount Shasta | AT&T | Landline | 0 |
| 650-564 | Mountain View | AT&T | Landline | 0 |
| 650-565 | Palo Alto | AT&T | Landline | 0 |
| 650-566 | Palo Alto | AT&T | Landline | 0 |
| 650-567 | Mountain View | AT&T | Landline | 0 |
| 650-568 | Redwood City | AT&T | Landline | 0 |
| 650-569 | Redwood City | AT&T | Landline | 0 |
| 650-570 | San Mateo | AT&T | Landline | 0 |
| 650-571 | San Mateo | AT&T | Landline | 0 |
| 650-572 | San Mateo | AT&T | Landline | 0 |
| 650-573 | San Mateo | AT&T | Landline | 0 |
| 650-574 | San Mateo | AT&T | Landline | 0 |
| 650-575 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-576 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-577 | San Mateo | AT&T | Landline | 0 |
| 650-578 | San Mateo | AT&T | Landline | 0 |
| 650-579 | San Mateo | AT&T | Landline | 0 |
| 650-580 | South San Francisco | AT&T Mobility | Wireless | 0 |
| 650-581 | San Mateo | AT&T | VoIP | 0 |
| 650-582 | Mountain View | Telnyx | VoIP | 0 |
| 650-583 | South San Francisco | AT&T | Landline | 0 |
| 650-584 | Mountain View | AT&T | Landline | 0 |
| 650-585 | San Carlos | Lumen (Level 3) | VoIP | 0 |
| 650-586 | Palo Alto | Telnyx | VoIP | 0 |
| 650-587 | Redwood City | Lumen (Level 3) | VoIP | 0 |
| 650-588 | South San Francisco | AT&T | Landline | 0 |
| 650-589 | South San Francisco | AT&T | Landline | 0 |
| 650-590 | San Carlos | Onvoy (Sinch) | VoIP | 0 |
| 650-591 | San Carlos | AT&T | Landline | 0 |
| 650-592 | San Carlos | AT&T | Landline | 0 |
| 650-593 | San Carlos | AT&T | Landline | 0 |
| 650-594 | San Carlos | AT&T | Landline | 0 |
| 650-595 | San Carlos | AT&T | Landline | 0 |
| 650-596 | San Carlos | AT&T | Landline | 0 |
| 650-597 | San Carlos | Utility Telecom Group | Landline | 0 |
| 650-598 | San Carlos | AT&T | Landline | 0 |
| 650-599 | Redwood City | AT&T | Landline | 0 |
| 650-600 | Palo Alto | Onvoy (Sinch) | VoIP | 0 |
| 650-602 | Mountain View | Verizon Wireless | Wireless | 0 |
| 650-603 | Mountain View | AT&T | Landline | 0 |
| 650-604 | Mountain View | AT&T | Landline | 0 |
| 650-605 | Mountain View | Verizon Business | VoIP | 0 |
| 650-606 | Palo Alto | Onvoy (Sinch) | VoIP | 0 |
| 650-607 | San Carlos | AT&T | Landline | 0 |
| 650-608 | San Francisco | Verizon Wireless | Wireless | 0 |
| 650-609 | Millbrae | T-Mobile | Wireless | 0 |
| 650-610 | San Carlos | AT&T | Landline | 0 |
| 650-612 | San Mateo | AT&T | Landline | 0 |
| 650-613 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-614 | Palo Alto | AT&T | Landline | 0 |
| 650-615 | South San Francisco | AT&T | Landline | 0 |
| 650-616 | South San Francisco | AT&T | Landline | 0 |
| 650-617 | Palo Alto | AT&T | Landline | 0 |
| 650-618 | Palo Alto | Onvoy (Sinch) | VoIP | 0 |
| 650-619 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-620 | San Carlos | AT&T | Landline | 0 |
| 650-621 | Palo Alto | AT&T | Landline | 0 |
| 650-622 | San Carlos | AT&T | Landline | 0 |
| 650-623 | Mountain View | AT&T | Landline | 0 |
| 650-624 | South San Francisco | AT&T | Landline | 0 |
| 650-625 | Mountain View | AT&T | Landline | 0 |
| 650-627 | San Mateo | AT&T | Landline | 0 |
| 650-628 | San Carlos | Verizon Business | VoIP | 0 |
| 650-629 | San Mateo | Fractel | VoIP | 0 |
| 650-630 | Palo Alto | T-Mobile (Metro) | Wireless | 0 |
| 650-631 | San Carlos | AT&T | Landline | 0 |
| 650-632 | San Carlos | AT&T | Landline | 0 |
| 650-633 | San Carlos | AT&T | Landline | 0 |
| 650-634 | South San Francisco | AT&T | Landline | 0 |
| 650-635 | South San Francisco | AT&T | Landline | 0 |
| 650-636 | South San Francisco | Verizon Business | VoIP | 0 |
| 650-637 | San Carlos | AT&T | Landline | 0 |
| 650-638 | San Mateo | AT&T | Landline | 0 |
| 650-639 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-640 | San Carlos | AT&T Mobility | Wireless | 0 |
| 650-641 | Mountain View | Lumen (Level 3) | VoIP | 0 |
| 650-642 | San Mateo | T-Mobile | Wireless | 0 |
| 650-643 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-644 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-645 | San Mateo | AT&T | VoIP | 0 |
| 650-646 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-647 | Redwood City | Verizon Wireless | Wireless | 0 |
| 650-648 | Millbrae | Verizon Business | VoIP | 1 |
| 650-649 | Redwood City | Onvoy (Sinch) | VoIP | 0 |
| 650-650 | San Mateo | Onvoy (Sinch) | VoIP | 0 |
| 650-651 | Millbrae | Verizon Business | VoIP | 0 |
| 650-652 | Millbrae | AT&T | Landline | 0 |
| 650-653 | San Mateo | Verizon Business | VoIP | 0 |
| 650-654 | San Carlos | AT&T | Landline | 0 |
| 650-655 | San Mateo | AT&T | Landline | 0 |
| 650-656 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-658 | Woodside | Onvoy (Sinch) | VoIP | 0 |
| 650-659 | San Mateo | Onvoy (Sinch) | VoIP | 0 |
| 650-660 | Half Moon Bay | T-Mobile | Wireless | 0 |
| 650-661 | Pacifica | T-Mobile | Wireless | 0 |
| 650-662 | La Honda | Hd Carrier | Landline | 0 |
| 650-663 | Pacifica | AT&T Mobility | Wireless | 0 |
| 650-664 | Mountain View | Verizon Wireless | Wireless | 0 |
| 650-665 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-666 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-667 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-668 | Los Altos | Fractel | VoIP | 0 |
| 650-669 | Mountain View | T-Mobile (Metro) | Wireless | 0 |
| 650-670 | Redwood City | Onvoy (Sinch) | VoIP | 0 |
| 650-671 | South San Francisco | T-Mobile | Wireless | 0 |
| 650-672 | Millbrae | Onvoy (Sinch) | VoIP | 0 |
| 650-673 | La Honda | AT&T Enterprises | Landline | 0 |
| 650-674 | San Carlos | Bandwidth | VoIP | 0 |
| 650-675 | Pacifica | T-Mobile | Wireless | 0 |
| 650-676 | South San Francisco | Utility Telecom Group | Landline | 0 |
| 650-677 | South San Francisco | Fractel | VoIP | 0 |
| 650-678 | San Mateo | Verizon Wireless | Wireless | 0 |
| 650-679 | Redwood City | Astound Broadband | Landline | 0 |
| 650-680 | Los Altos | T-Mobile | Wireless | 0 |
| 650-681 | Palo Alto | Tpx Communications | Landline | 0 |
| 650-682 | Palo Alto | Utility Telecom Group | Landline | 0 |
| 650-683 | Woodside | Lumen (Level 3) | VoIP | 0 |
| 650-684 | Millbrae | Lumen (Level 3) | VoIP | 0 |
| 650-685 | San Mateo | AT&T | Landline | 0 |
| 650-686 | Millbrae | Verizon Business | VoIP | 0 |
| 650-687 | Palo Alto | Verizon Business | VoIP | 0 |
| 650-688 | Palo Alto | AT&T | Landline | 0 |
| 650-689 | Millbrae | AT&T | VoIP | 0 |
| 650-690 | Palo Alto | AT&T | Landline | 0 |
| 650-691 | Mountain View | AT&T | Landline | 0 |
| 650-692 | Millbrae | AT&T | Landline | 0 |
| 650-693 | Mountain View | AT&T | VoIP | 0 |
| 650-694 | Mountain View | AT&T | Landline | 0 |
| 650-695 | Mountain View | Bandwidth | VoIP | 0 |
| 650-696 | San Mateo | AT&T | Landline | 0 |
| 650-697 | Millbrae | AT&T | Landline | 0 |
| 650-698 | Palo Alto | T-Mobile | Wireless | 0 |
| 650-699 | San Mateo | Fractel | VoIP | 0 |
| 650-701 | Redwood City | AT&T | Landline | 0 |
| 650-702 | Palo Alto | Nuso | Landline | 2 |
| 650-703 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-704 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-705 | Mountain View | T-Mobile | Wireless | 0 |
| 650-706 | San Mateo | Onvoy (Sinch) | VoIP | 0 |
| 650-708 | South San Francisco | Onvoy (Sinch) | VoIP | 0 |
| 650-709 | Palo Alto | Airespring | Landline | 0 |
| 650-710 | San Francisco | Onvoy (Sinch) | VoIP | 0 |
| 650-712 | Half Moon Bay | AT&T | Landline | 0 |
| 650-713 | Half Moon Bay | Verizon Business | VoIP | 0 |
| 650-714 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-715 | San Mateo | Onvoy (Sinch) | VoIP | 0 |
| 650-716 | Redwood City | Verizon Business | VoIP | 0 |
| 650-718 | Mount Shasta | AT&T | VoIP | 0 |
| 650-719 | Mount Shasta | Verizon Business | VoIP | 0 |
| 650-720 | Half Moon Bay | Verizon Business | VoIP | 0 |
| 650-721 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-722 | Redwood City | Verizon Wireless | Wireless | 0 |
| 650-723 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-724 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-725 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-726 | Half Moon Bay | AT&T | Landline | 0 |
| 650-727 | San Mateo | Bandwidth | VoIP | 0 |
| 650-728 | Mount Shasta | AT&T | Landline | 0 |
| 650-729 | Half Moon Bay | AT&T | VoIP | 0 |
| 650-730 | San Carlos | Verizon Wireless | Wireless | 0 |
| 650-731 | San Francisco | Astound Broadband | Landline | 0 |
| 650-732 | Millbrae | Verizon Wireless | Wireless | 0 |
| 650-733 | Pacifica | Verizon Business | VoIP | 0 |
| 650-734 | Redwood City | Onvoy (Sinch) | VoIP | 0 |
| 650-735 | Pacifica | AT&T | VoIP | 0 |
| 650-736 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-737 | South San Francisco | AT&T | Landline | 0 |
| 650-738 | Pacifica | AT&T | Landline | 0 |
| 650-739 | Palo Alto | AT&T | Landline | 0 |
| 650-740 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-741 | South San Francisco | AT&T | Landline | 0 |
| 650-742 | South San Francisco | AT&T | Landline | 0 |
| 650-743 | Redwood City | AT&T Mobility | Wireless | 0 |
| 650-744 | Mountain View | Fractel | VoIP | 0 |
| 650-745 | South San Francisco | AT&T | VoIP | 0 |
| 650-746 | San Francisco | AT&T | Landline | 0 |
| 650-747 | La Honda | AT&T | Landline | 0 |
| 650-748 | La Honda | AT&T | VoIP | 0 |
| 650-749 | La Honda | Verizon Business | VoIP | 0 |
| 650-750 | Half Moon Bay | Onvoy (Sinch) | VoIP | 0 |
| 650-751 | Woodside | Boost Subscriberco | Landline | 0 |
| 650-752 | Palo Alto | AT&T | Landline | 0 |
| 650-753 | San Mateo | T-Mobile | Wireless | 0 |
| 650-754 | South San Francisco | AT&T | Landline | 0 |
| 650-755 | San Francisco | AT&T | Landline | 0 |
| 650-756 | San Francisco | AT&T | Landline | 0 |
| 650-757 | San Francisco | AT&T | Landline | 0 |
| 650-758 | San Francisco | AT&T | Landline | 0 |
| 650-759 | San Mateo | Verizon Wireless | Wireless | 0 |
| 650-760 | South San Francisco | AT&T | VoIP | 0 |
| 650-761 | San Francisco | AT&T | Landline | 0 |
| 650-762 | San Mateo | AT&T | Landline | 0 |
| 650-763 | South San Francisco | Lumen (Level 3) | VoIP | 0 |
| 650-764 | Mountain View | Onvoy (Sinch) | VoIP | 0 |
| 650-765 | San Carlos | Onvoy (Sinch) | VoIP | 0 |
| 650-766 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-768 | Los Altos | Windstream (PAETEC) | VoIP | 0 |
| 650-769 | San Carlos | Verizon Business | VoIP | 0 |
| 650-770 | Los Altos | Onvoy (Sinch) | VoIP | 0 |
| 650-771 | Redwood City | T-Mobile (Metro) | Wireless | 0 |
| 650-772 | Mountain View | T-Mobile | Wireless | 0 |
| 650-773 | San Mateo | Verizon Wireless | Wireless | 0 |
| 650-774 | Los Altos | Onvoy (Sinch) | VoIP | 0 |
| 650-776 | Palo Alto | T-Mobile (Metro) | Wireless | 0 |
| 650-777 | Millbrae | AT&T | Landline | 0 |
| 650-778 | San Mateo | Onvoy (Sinch) | VoIP | 0 |
| 650-779 | Redwood City | AT&T | VoIP | 0 |
| 650-780 | Redwood City | AT&T | Landline | 0 |
| 650-781 | San Mateo | Bandwidth | VoIP | 0 |
| 650-782 | Los Altos | Ton80 Communications | VoIP | 0 |
| 650-784 | South San Francisco | T-Mobile | Wireless | 0 |
| 650-785 | Palo Alto | Verizon Wireless | Wireless | 0 |
| 650-786 | Redwood City | AT&T | Landline | 0 |
| 650-787 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-788 | Palo Alto | Fractel | VoIP | 0 |
| 650-789 | Mountain View | Fractel | VoIP | 0 |
| 650-791 | Half Moon Bay | Onvoy (Sinch) | VoIP | 0 |
| 650-792 | Palo Alto | Onvoy (Sinch) | VoIP | 0 |
| 650-793 | Mountain View | Verizon Wireless | Wireless | 0 |
| 650-794 | South San Francisco | AT&T | Landline | 0 |
| 650-795 | La Honda | Verizon Business | VoIP | 0 |
| 650-796 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-797 | South San Francisco | AT&T Mobility | Wireless | 0 |
| 650-798 | Palo Alto | AT&T | VoIP | 0 |
| 650-799 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-800 | Palo Alto | Onvoy (Sinch) | VoIP | 0 |
| 650-801 | San Carlos | AT&T | VoIP | 0 |
| 650-802 | San Carlos | AT&T | Landline | 0 |
| 650-804 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-806 | Mountain View | Verizon Wireless | Wireless | 0 |
| 650-808 | South San Francisco | AT&T | Landline | 0 |
| 650-810 | Mountain View | Tpx Communications | Landline | 0 |
| 650-812 | Palo Alto | AT&T | Landline | 0 |
| 650-813 | Palo Alto | AT&T | Landline | 0 |
| 650-814 | Palo Alto | T-Mobile (Metro) | Wireless | 0 |
| 650-815 | Palo Alto | Verizon Business | VoIP | 0 |
| 650-817 | Redwood City | AT&T | Landline | 0 |
| 650-819 | South San Francisco | T-Mobile | Wireless | 0 |
| 650-820 | Redwood City | Onvoy (Sinch) | VoIP | 0 |
| 650-821 | South San Francisco | AT&T | VoIP | 0 |
| 650-822 | South San Francisco | Onvoy (Sinch) | VoIP | 0 |
| 650-823 | Los Altos | AT&T Mobility | Wireless | 0 |
| 650-825 | South San Francisco | Verizon Business | VoIP | 0 |
| 650-826 | South San Francisco | T-Mobile | Wireless | 0 |
| 650-827 | South San Francisco | AT&T | Landline | 0 |
| 650-829 | South San Francisco | AT&T | Landline | 0 |
| 650-830 | San Carlos | Lumen (Level 3) | VoIP | 0 |
| 650-832 | San Carlos | Tpx Communications | Landline | 0 |
| 650-833 | Palo Alto | AT&T | Landline | 0 |
| 650-834 | South San Francisco | T-Mobile (Metro) | Wireless | 0 |
| 650-835 | South San Francisco | IP Horizon | VoIP | 1 |
| 650-836 | Pescadero | Lumen (Level 3) | VoIP | 0 |
| 650-837 | South San Francisco | AT&T | Landline | 0 |
| 650-838 | Palo Alto | AT&T | Landline | 0 |
| 650-839 | Redwood City | AT&T | Landline | 0 |
| 650-840 | Redwood City | Onvoy (Sinch) | VoIP | 0 |
| 650-841 | Mountain View | Onvoy (Sinch) | VoIP | 0 |
| 650-842 | Palo Alto | AT&T | Landline | 0 |
| 650-843 | Palo Alto | AT&T | Landline | 0 |
| 650-844 | San Mateo | Fractel | VoIP | 0 |
| 650-845 | Palo Alto | AT&T | Landline | 0 |
| 650-846 | Palo Alto | AT&T | Landline | 0 |
| 650-847 | Palo Alto | Verizon Business | VoIP | 0 |
| 650-849 | Palo Alto | AT&T | Landline | 0 |
| 650-850 | Woodside | Verizon Business | VoIP | 0 |
| 650-851 | Woodside | AT&T | Landline | 0 |
| 650-852 | Palo Alto | AT&T | Landline | 0 |
| 650-853 | Palo Alto | AT&T | Landline | 0 |
| 650-854 | Palo Alto | AT&T | Landline | 0 |
| 650-855 | Palo Alto | AT&T | Landline | 0 |
| 650-856 | Palo Alto | AT&T | Landline | 0 |
| 650-857 | Palo Alto | AT&T | Landline | 0 |
| 650-858 | Palo Alto | AT&T | Landline | 0 |
| 650-859 | Palo Alto | AT&T | Landline | 0 |
| 650-860 | Pescadero | Lumen (Level 3) | VoIP | 0 |
| 650-861 | Mountain View | T-Mobile | Wireless | 0 |
| 650-862 | Palo Alto | AT&T Mobility | Wireless | 0 |
| 650-863 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-864 | Mountain View | AT&T | Landline | 0 |
| 650-865 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-866 | South San Francisco | AT&T | Landline | 0 |
| 650-867 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-868 | Redwood City | AT&T Mobility | Wireless | 0 |
| 650-869 | South San Francisco | AT&T | Landline | 0 |
| 650-870 | South San Francisco | Bandwidth | VoIP | 0 |
| 650-871 | South San Francisco | AT&T | Landline | 0 |
| 650-872 | South San Francisco | AT&T | Landline | 0 |
| 650-873 | South San Francisco | AT&T | Landline | 0 |
| 650-874 | South San Francisco | AT&T | Landline | 0 |
| 650-875 | South San Francisco | AT&T | Landline | 0 |
| 650-876 | South San Francisco | AT&T | Landline | 0 |
| 650-877 | South San Francisco | AT&T | Landline | 0 |
| 650-878 | South San Francisco | AT&T | Landline | 0 |
| 650-879 | Pescadero | AT&T | Landline | 0 |
| 650-880 | Mountain View | AT&T Mobility | Wireless | 0 |
| 650-881 | Pescadero | AT&T | VoIP | 0 |
| 650-882 | Pescadero | Onvoy (Sinch) | VoIP | 0 |
| 650-885 | Palo Alto | Lumen (Level 3) | VoIP | 0 |
| 650-887 | Los Altos | Onvoy (Sinch) | VoIP | 0 |
| 650-888 | San Mateo | AT&T Mobility | Wireless | 0 |
| 650-889 | Half Moon Bay | IP Horizon | VoIP | 0 |
| 650-892 | South San Francisco | AT&T Mobility | Wireless | 0 |
| 650-897 | Mount Shasta | Lumen (Level 3) | VoIP | 0 |
| 650-898 | Pacifica | Comcast (Xfinity) | Landline | 0 |
| 650-899 | La Honda | Onvoy (Sinch) | VoIP | 0 |
| 650-900 | Los Altos | Onvoy (Sinch) | VoIP | 0 |
| 650-903 | Mountain View | AT&T | Landline | 0 |
| 650-906 | Palo Alto | T-Mobile (Metro) | Wireless | 0 |
| 650-910 | South San Francisco | Onvoy (Sinch) | VoIP | 0 |
| 650-912 | Half Moon Bay | Commio | VoIP | 0 |
| 650-917 | Los Altos | AT&T | Landline | 0 |
| 650-918 | San Mateo | AT&T | Landline | 0 |
| 650-919 | Mountain View | AT&T | Landline | 0 |
| 650-921 | San Mateo | T-Mobile (Metro) | Wireless | 0 |
| 650-922 | South San Francisco | Verizon Wireless | Wireless | 0 |
| 650-924 | Palo Alto | T-Mobile (Metro) | Wireless | 0 |
| 650-926 | Palo Alto | AT&T | Landline | 0 |
| 650-930 | Mountain View | Verizon Business | VoIP | 0 |
| 650-931 | San Mateo | Tpx Communications | Landline | 0 |
| 650-932 | Mountain View | AT&T | Landline | 0 |
| 650-933 | Mountain View | AT&T | Landline | 0 |
| 650-934 | Mountain View | AT&T | Landline | 0 |
| 650-935 | Los Altos | Verizon Business | VoIP | 0 |
| 650-937 | Mountain View | AT&T | Landline | 0 |
| 650-938 | Mountain View | AT&T | Landline | 0 |
| 650-939 | Pacifica | Onvoy (Sinch) | VoIP | 0 |
| 650-940 | Mountain View | AT&T | Landline | 0 |
| 650-941 | Los Altos | AT&T | Landline | 0 |
| 650-942 | Millbrae | Verizon Wireless | Wireless | 0 |
| 650-943 | Mountain View | AT&T | Landline | 0 |
| 650-944 | Mountain View | AT&T | Landline | 0 |
| 650-946 | Los Altos | Comcast (Xfinity) | Landline | 0 |
| 650-947 | Los Altos | AT&T | Landline | 0 |
| 650-948 | Los Altos | AT&T | Landline | 0 |
| 650-949 | Los Altos | AT&T | Landline | 0 |
| 650-952 | South San Francisco | AT&T | Landline | 0 |
| 650-954 | San Mateo | T-Mobile | Wireless | 0 |
| 650-955 | Half Moon Bay | Fractel | VoIP | 0 |
| 650-960 | Mountain View | AT&T | Landline | 0 |
| 650-961 | Mountain View | AT&T | Landline | 0 |
| 650-962 | Mountain View | AT&T | Landline | 0 |
| 650-963 | Mountain View | Onvoy (Sinch) | VoIP | 0 |
| 650-964 | Mountain View | AT&T | Landline | 0 |
| 650-965 | Mountain View | AT&T | Landline | 0 |
| 650-966 | Mountain View | AT&T | Landline | 0 |
| 650-967 | Mountain View | AT&T | Landline | 0 |
| 650-968 | Mountain View | AT&T | Landline | 0 |
| 650-969 | Mountain View | AT&T | Landline | 0 |
| 650-977 | Pacifica | Fractel | VoIP | 0 |
| 650-980 | Redwood City | Verizon Business | VoIP | 0 |
| 650-984 | Pacifica | Onvoy (Sinch) | VoIP | 0 |
| 650-985 | San Francisco | AT&T | Landline | 0 |
| 650-988 | Mountain View | AT&T | Landline | 0 |
| 650-989 | South San Francisco | Lumen (Level 3) | VoIP | 0 |
| 650-990 | South San Francisco | Onvoy (Sinch) | VoIP | 0 |
| 650-991 | San Francisco | AT&T | Landline | 0 |
| 650-992 | San Francisco | AT&T | Landline | 0 |
| 650-993 | San Francisco | AT&T | Landline | 0 |
| 650-994 | San Francisco | AT&T | Landline | 0 |
| 650-995 | Redwood City | AT&T | Landline | 0 |
| 650-996 | Mountain View | AT&T Mobility | Wireless | 0 |
| 650-997 | San Francisco | AT&T | Landline | 0 |
| 650-999 | Palo Alto | Onvoy (Sinch) | VoIP | 0 |
Area code 650 questions
Where is area code 650?
Area code 650 is in California. Its biggest rate centers are Palo Alto, San Mateo, Mountain View, South San Francisco, Redwood City.
What time zone is area code 650?
Area code 650 is in the Pacific time zone.
Is a call from area code 650 a scam?
An area code alone can't tell you. Scammers use and spoof numbers in every area code. 23 650 numbers have been flagged on ShadyCall. Look up the full number to see its reports and FTC/FCC complaints.
What carriers use area code 650?
Of its 717 exchanges, the most were assigned to AT&T, AT&T Mobility, T-Mobile. Numbers can be ported to any carrier, so the exchange shows the original carrier only.