510 Area Code: Location, Cities, Map And Time Zone

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Area Code 510

Area code 510 is in California, USA , spanning 2 counties and serving 23 cities , including Oakland, Fremont or Hayward; it currently uses 784 prefixes , assigned from 510-200-XXXX through 510-999-XXXX.

In service since September 02, 1991, area code 510 is the parent Numbering Plan Area in overlay complex 510/341.

The current local time is .

510 area code location on a map
© OpenStreetMap contributorsFor exact NPA boundaries see official 510 area code map

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More California area codes:

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Locate any 510-NXX prefix:

510-200-XXXX --- 510-299-XXXX
NPANXX Area served[1] Provider[2] Date[3]
510-200 Hayward Multiple 11/12/2008
510-201 Oakland [Main-Piedmont] Multiple 2/14/2009
510-202 Oakland [Main-Piedmont] Utility Telecom Group N/A
510-203 Fremont-Newark Multiple 9/22/2015
510-204 Oakland [Berkeley] Pacific Bell N/A
510-205 Oakland [Alameda] Multiple N/A
510-206 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-207 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-208 Oakland [Main-Piedmont] Pacific Bell N/A
510-209 Hayward Multiple N/A
510-210 Richmond Multiple 1/4/2013
510-212 Fremont-Newark USA Mobility Wireless N/A
510-213 Oakland [Fruitvale] Multiple 9/19/2002
510-214 Oakland [Alameda] Multiple N/A
510-215 Richmond Pacific Bell N/A
510-216 Oakland [Fruitvale] Multiple 9/27/2019
510-217 Oakland [Alameda] Multiple N/A
510-218 Fremont-Newark USA Mobility Wireless N/A
510-219 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-220 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-221 Richmond Multiple 2/8/2007
510-222 El Sobrante-Pinole Pacific Bell N/A
510-223 El Sobrante-Pinole Pacific Bell N/A
510-224 Hercules-Rodeo Multiple 10/18/2001
510-225 Oakland [Berkeley] Multiple N/A
510-226 Fremont-Newark Pacific Bell N/A
510-227 Oakland [Alameda] Multiple N/A
510-228 Oakland [Fruitvale] Multiple N/A
510-229 Oakland [Berkeley] Multiple N/A
510-230 Richmond Multiple 2/15/2007
510-231 Richmond Pacific Bell N/A
510-232 Richmond Pacific Bell N/A
510-233 Richmond Pacific Bell N/A
510-234 Richmond Pacific Bell N/A
510-235 Richmond Pacific Bell N/A
510-236 Richmond Pacific Bell N/A
510-237 Richmond Pacific Bell N/A
510-238 Oakland [Main-Piedmont] Pacific Bell N/A
510-239 Oakland [Alameda] Multiple N/A
510-240 Fremont-Newark Multiple N/A
510-241 El Sobrante-Pinole Multiple 9/22/2015
510-242 Richmond Pacific Bell N/A
510-243 El Sobrante-Pinole Multiple N/A
510-244 Hayward Multiple 7/25/2011
510-245 Hercules-Rodeo Pacific Bell N/A
510-246 Hayward Multiple 8/9/2011
510-247 Hayward Multiple N/A
510-248 Fremont-Newark Multiple N/A
510-249 Fremont-Newark Pacific Bell N/A
510-250 Oakland [Main-Piedmont] Multiple N/A
510-251 Oakland [Main-Piedmont] Pacific Bell N/A
510-252 Fremont-Newark Pacific Bell N/A
510-253 Richmond Multiple N/A
510-254 Oakland [Alameda] Multiple 9/15/2011
510-255 Richmond Multiple 4/28/2011
510-256 Crockett Multiple N/A
510-257 Fremont-Newark Multiple N/A
510-258 Hayward Multiple N/A
510-259 Hayward Multiple N/A
510-260 Richmond Multiple N/A
510-261 Oakland [Fruitvale] Pacific Bell N/A
510-262 El Sobrante-Pinole Multiple N/A
510-263 Oakland [Alameda] Multiple N/A
510-264 Hayward Multiple N/A
510-265 Hayward Multiple N/A
510-266 Hayward Multiple N/A
510-267 Oakland [Main-Piedmont] Pacific Bell N/A
510-268 Oakland [Main-Piedmont] Multiple N/A
510-269 Oakland [Fruitvale] Multiple N/A
510-270 Fremont-Newark Multiple N/A
510-271 Oakland [Main-Piedmont] Pacific Bell N/A
510-272 Oakland [Main-Piedmont] Multiple N/A
510-273 Oakland [Main-Piedmont] Pacific Bell N/A
510-274 Hayward Multiple N/A
510-275 El Sobrante-Pinole Multiple N/A
510-276 Hayward Pacific Bell N/A
510-277 Oakland [Berkeley] Multiple N/A
510-278 Hayward Pacific Bell N/A
510-279 Fremont-Newark Multiple N/A
510-280 Oakland [Berkeley] Multiple N/A
510-281 Oakland [Main-Piedmont] Onvoy N/A
510-282 Oakland [Main-Piedmont] T-Mobile USA 12/26/2001
510-283 El Sobrante-Pinole Multiple N/A
510-284 Fremont-Newark Multiple N/A
510-285 Oakland [Main-Piedmont] Multiple N/A
510-286 Oakland [Main-Piedmont] Pacific Bell N/A
510-287 Oakland [Main-Piedmont] Multiple N/A
510-288 Oakland [Main-Piedmont] Onvoy N/A
510-289 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-290 Oakland [Main-Piedmont] T-Mobile USA N/A
510-291 Oakland [Main-Piedmont] Multiple N/A
510-292 Oakland [Berkeley] Multiple N/A
510-293 Hayward Multiple N/A
510-294 Hayward Multiple 11/4/2011
510-295 Oakland [Berkeley] Multiple N/A
510-296 Hercules-Rodeo Multiple N/A
510-297 Oakland [Trinidad] Pacific Bell N/A
510-298 Fremont-Newark Multiple 12/7/2012
510-299 Fremont-Newark Cellco Partnership N/A
510-300-XXXX --- 510-399-XXXX
NPANXX Area served[1] Provider[2] Date[3]
510-300 Hayward Multiple N/A
510-301 Oakland [Main-Piedmont] Cellco Partnership N/A
510-302 Oakland [Main-Piedmont] Multiple N/A
510-303 Hayward New Cingular Wireless PCS N/A
510-304 Fremont-Newark New Cingular Wireless PCS N/A
510-305 Hayward New Cingular Wireless PCS N/A
510-306 Oakland [Alameda] Multiple N/A
510-307 Richmond Multiple N/A
510-308 Oakland [Main-Piedmont] USA Mobility Wireless N/A
510-309 El Sobrante-Pinole T-Mobile USA 10/24/2014
510-312 Crockett Multiple 08/09/2023
510-313 Hercules-Rodeo Multiple N/A
510-314 Hayward Multiple 7/2/2007
510-315 Hayward Level 3 Communications N/A
510-316 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-317 Hayward Pacific Bell N/A
510-318 Oakland [Main-Piedmont] Multiple N/A
510-319 Fremont-Newark Multiple 12/1/2015
510-320 Fremont-Newark Multiple 9/12/2013
510-321 Oakland [Main-Piedmont] USA Mobility Wireless N/A
510-322 Hercules-Rodeo Multiple N/A
510-323 Richmond Multiple N/A
510-324 Fremont-Newark Multiple N/A
510-325 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-326 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-327 Hercules-Rodeo Multiple N/A
510-328 Oakland [Fruitvale] Multiple 1/31/2013
510-329 Hayward New Cingular Wireless PCS N/A
510-330 Hayward Multiple 12/28/2015
510-331 Hayward New Cingular Wireless PCS N/A
510-332 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-333 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-334 Richmond New Cingular Wireless PCS N/A
510-335 Fremont-Newark Multiple N/A
510-336 Oakland [Fruitvale] Multiple N/A
510-337 Oakland [Alameda] Multiple N/A
510-338 Oakland [Main-Piedmont] Multiple N/A
510-339 Oakland [Main-Piedmont] Pacific Bell N/A
510-340 Hayward Multiple 5/4/2012
510-342 Hayward Multiple N/A
510-343 Oakland [Trinidad] Multiple N/A
510-344 Fremont-Newark Multiple N/A
510-345 Oakland [Berkeley] Multiple 1/15/2016
510-346 Oakland [Trinidad] Multiple N/A
510-347 Oakland [Trinidad] Multiple N/A
510-348 Oakland [Main-Piedmont] 33 Wireless N/A
510-349 Richmond American Messaging Services N/A
510-350 Oakland [Main-Piedmont] Multiple N/A
510-351 Oakland [Trinidad] Pacific Bell N/A
510-352 Oakland [Trinidad] Pacific Bell N/A
510-353 Fremont-Newark Multiple N/A
510-354 Fremont-Newark Pacific Bell N/A
510-355 Oakland [Alameda] Multiple N/A
510-356 Oakland [Berkeley] Multiple 11/28/2007
510-357 Oakland [Trinidad] Pacific Bell N/A
510-358 Fremont-Newark Multiple 7/8/2011
510-359 Hayward Multiple 8/17/2012
510-360 Fremont-Newark Pacific Bell N/A
510-361 Hayward Multiple 10/27/2014
510-362 Hayward Multiple 5/16/2013
510-363 Hayward Multiple 1/14/2008
510-364 Fremont-Newark New Cingular Wireless PCS 11/28/2001
510-365 Oakland [Berkeley] Multiple 9/26/2013
510-366 Fremont-Newark New Cingular Wireless PCS N/A
510-367 Richmond New Cingular Wireless PCS N/A
510-368 Oakland [Main-Piedmont] Multiple N/A
510-369 Richmond Multiple 2/4/2016
510-370 Hayward Peerless Network Of California 4/13/2012
510-371 Fremont-Newark Multiple 8/7/2008
510-372 Hayward Multiple N/A
510-373 Oakland [Alameda] Multiple N/A
510-374 Richmond Multiple N/A
510-375 Richmond T-Mobile USA 12/26/2001
510-376 Fremont-Newark Multiple N/A
510-377 Fremont-Newark T-Mobile USA N/A
510-378 Fremont-Newark New Cingular Wireless PCS N/A
510-379 Oakland [Main-Piedmont] Multiple N/A
510-380 Oakland [Main-Piedmont] Multiple N/A
510-381 Oakland [Main-Piedmont] Cellco Partnership N/A
510-382 Oakland [Trinidad] Pacific Bell N/A
510-383 Oakland [Trinidad] Multiple N/A
510-384 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-385 Oakland [Main-Piedmont] Multiple N/A
510-386 Fremont-Newark New Cingular Wireless PCS N/A
510-387 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-388 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-389 Oakland [Main-Piedmont] Multiple N/A
510-390 Oakland [Main-Piedmont] Multiple N/A
510-391 Fremont-Newark Multiple 12/21/2023
510-392 El Sobrante-Pinole Multiple 01/16/2024
510-393 Oakland [Main-Piedmont] T-Mobile USA N/A
510-394 Oakland [Trinidad] Multiple N/A
510-395 Oakland [Fruitvale] Multiple N/A
510-396 Fremont-Newark T-Mobile USA 12/26/2001
510-397 Hayward Multiple 8/28/2008
510-398 Hayward Multiple 8/17/2012
510-399 Fremont-Newark Multiple 5/6/2016
510-400-XXXX --- 510-499-XXXX
NPANXX Area served[1] Provider[2] Date[3]
510-400 Fremont-Newark Multiple N/A
510-401 Fremont-Newark Multiple N/A
510-402 Fremont-Newark Multiple N/A
510-403 Fremont-Newark Multiple N/A
510-404 Fremont-Newark Multiple N/A
510-405 Fremont-Newark Onvoy N/A
510-406 Oakland [Main-Piedmont] Multiple N/A
510-407 Oakland [Main-Piedmont] Cellco Partnership N/A
510-408 El Sobrante-Pinole Multiple 11/25/2009
510-409 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-410 Oakland [Main-Piedmont] Cellco Partnership N/A
510-412 Richmond Pacific Bell N/A
510-413 Fremont-Newark Multiple N/A
510-414 Oakland [Main-Piedmont] Cellco Partnership N/A
510-415 Hayward T-Mobile USA 9/19/2001
510-416 Oakland [Berkeley] North County Communication Corporation N/A
510-417 El Sobrante-Pinole Multiple 9/19/2002
510-418 Oakland [Main-Piedmont] Cellco Partnership N/A
510-419 Oakland [Main-Piedmont] Multiple N/A
510-420 Oakland [Main-Piedmont] Pacific Bell N/A
510-421 Oakland [Main-Piedmont] Cellco Partnership N/A
510-422 Oakland [Fruitvale] Multiple 9/25/2015
510-423 Oakland [Berkeley] Multiple 11/7/2008
510-424 Oakland [Fruitvale] Multiple 7/29/2016
510-425 Oakland [Trinidad] Multiple N/A
510-426 Richmond Multiple 3/27/2014
510-427 Hayward Cellco Partnership N/A
510-428 Oakland [Main-Piedmont] Pacific Bell N/A
510-429 Fremont-Newark Pacific Bell N/A
510-430 Oakland [Trinidad] Pacific Bell N/A
510-431 Fremont-Newark Multiple N/A
510-432 Hayward New Cingular Wireless PCS 11/28/2001
510-433 Oakland [Main-Piedmont] Multiple N/A
510-434 Oakland [Fruitvale] Multiple N/A
510-435 Oakland [Main-Piedmont] T-Mobile USA N/A
510-436 Oakland [Fruitvale] Pacific Bell N/A
510-437 Oakland [Fruitvale] Multiple N/A
510-438 Fremont-Newark Multiple N/A
510-439 Richmond Multiple N/A
510-440 Fremont-Newark Multiple N/A
510-441 Fremont-Newark Multiple N/A
510-442 Oakland [Main-Piedmont] Utility Telecom Group N/A
510-443 Fremont-Newark Multiple 2/14/2009
510-444 Oakland [Main-Piedmont] Multiple N/A
510-445 Fremont-Newark Multiple N/A
510-446 Oakland [Main-Piedmont] Multiple N/A
510-447 Richmond Multiple 12/9/2011
510-448 Oakland [Main-Piedmont] Utility Telecom Group N/A
510-449 Fremont-Newark Multiple N/A
510-450 Oakland [Main-Piedmont] Pacific Bell N/A
510-451 Oakland [Main-Piedmont] Pacific Bell N/A
510-452 Oakland [Main-Piedmont] Multiple N/A
510-453 Fremont-Newark Multiple N/A
510-454 Oakland [Trinidad] Multiple 11/30/2012
510-455 Crockett Multiple 4/20/2001
510-456 Fremont-Newark Multiple N/A
510-457 Oakland [Main-Piedmont] Multiple N/A
510-458 Fremont-Newark Multiple 10/14/2014
510-459 Oakland [Main-Piedmont] T-Mobile USA N/A
510-460 Hayward Multiple 2/9/2010
510-461 Hayward Multiple 8/21/2002
510-462 Fremont-Newark Multiple 5/4/2016
510-463 Oakland [Main-Piedmont] Multiple N/A
510-464 Oakland [Main-Piedmont] Multiple N/A
510-465 Oakland [Main-Piedmont] Pacific Bell N/A
510-466 Oakland [Main-Piedmont] Multiple N/A
510-467 Oakland [Fruitvale] Multiple N/A
510-468 Fremont-Newark Cellco Partnership N/A
510-469 Oakland [Main-Piedmont] Multiple N/A
510-470 Hayward Multiple 2/22/2010
510-471 Fremont-Newark Pacific Bell N/A
510-472 Oakland [Main-Piedmont] MetroPCS 8/22/2001
510-473 Oakland [Alameda] Multiple N/A
510-474 Fremont-Newark Multiple N/A
510-475 Fremont-Newark Pacific Bell N/A
510-476 Fremont-Newark Multiple N/A
510-477 Fremont-Newark Pacific Bell N/A
510-478 Richmond Multiple N/A
510-479 Oakland [Fruitvale] Multiple N/A
510-480 El Sobrante-Pinole Multiple 9/26/2013
510-481 Hayward Pacific Bell N/A
510-482 Oakland [Fruitvale] Pacific Bell N/A
510-483 Oakland [Trinidad] Pacific Bell N/A
510-484 Oakland [Main-Piedmont] Multiple N/A
510-485 Oakland [Fruitvale] Multiple N/A
510-486 Oakland [Berkeley] Pacific Bell N/A
510-487 Fremont-Newark Pacific Bell N/A
510-488 Oakland [Fruitvale] Multiple N/A
510-489 Fremont-Newark Pacific Bell N/A
510-490 Fremont-Newark Pacific Bell N/A
510-491 Fremont-Newark Multiple N/A
510-492 Fremont-Newark Multiple N/A
510-493 Fremont-Newark Multiple N/A
510-494 Fremont-Newark Pacific Bell N/A
510-495 Oakland [Berkeley] Multiple N/A
510-496 Oakland [Main-Piedmont] Multiple N/A
510-497 Fremont-Newark Multiple N/A
510-498 Fremont-Newark Multiple N/A
510-499 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-500-XXXX --- 510-599-XXXX
NPANXX Area served[1] Provider[2] Date[3]
510-500 Oakland [Fruitvale] Multiple N/A
510-501 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-502 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-503 Oakland [Main-Piedmont] Utility Telecom Group N/A
510-504 Oakland [Main-Piedmont] Cellco Partnership N/A
510-505 Fremont-Newark Multiple N/A
510-506 Oakland [Main-Piedmont] Multiple N/A
510-507 Oakland [Main-Piedmont] Multiple N/A
510-508 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-509 Fremont-Newark Multiple 7/6/2010
510-510 Fremont-Newark Shelcomm 09/12/2024
510-512 Hayward Multiple N/A
510-513 Fremont-Newark Multiple 8/30/2016
510-514 Hayward Multiple 9/19/2016
510-515 Oakland [Main-Piedmont] USA Mobility Wireless N/A
510-516 Fremont-Newark Multiple 9/3/2010
510-517 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-518 Fremont-Newark Multiple 7/24/2017
510-519 Oakland [Alameda] Multiple 8/7/2017
510-520 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-521 Oakland [Alameda] Pacific Bell N/A
510-522 Oakland [Alameda] Pacific Bell N/A
510-523 Oakland [Alameda] Pacific Bell N/A
510-524 Oakland [Berkeley] Pacific Bell N/A
510-525 Oakland [Berkeley] Pacific Bell N/A
510-526 Oakland [Berkeley] Pacific Bell N/A
510-527 Oakland [Berkeley] Pacific Bell N/A
510-528 Oakland [Berkeley] Pacific Bell N/A
510-529 Oakland [Berkeley] Multiple N/A
510-530 Oakland [Fruitvale] Pacific Bell N/A
510-531 Oakland [Fruitvale] Pacific Bell N/A
510-532 Oakland [Fruitvale] Pacific Bell N/A
510-533 Oakland [Fruitvale] Pacific Bell N/A
510-534 Oakland [Fruitvale] Pacific Bell N/A
510-535 Oakland [Fruitvale] Pacific Bell N/A
510-536 Oakland [Fruitvale] Pacific Bell N/A
510-537 Hayward Pacific Bell N/A
510-538 Hayward Pacific Bell N/A
510-539 Oakland [Main-Piedmont] Utility Telecom Group N/A
510-540 Oakland [Berkeley] Pacific Bell N/A
510-541 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-542 Oakland [Berkeley] Multiple N/A
510-543 Oakland [Main-Piedmont] Multiple N/A
510-544 Oakland [Trinidad] Multiple N/A
510-545 Oakland [Alameda] Multiple N/A
510-546 Hayward Onvoy Spectrum 01/04/2024
510-547 Oakland [Main-Piedmont] Pacific Bell N/A
510-548 Oakland [Berkeley] Pacific Bell N/A
510-549 Oakland [Berkeley] Multiple N/A
510-550 Oakland [Main-Piedmont] Multiple N/A
510-551 Oakland [Main-Piedmont] Multiple N/A
510-552 Fremont-Newark Cellco Partnership 6/25/2001
510-553 Oakland [Trinidad] Pacific Bell N/A
510-554 Hayward 33 Wireless N/A
510-556 Fremont-Newark Multiple 5/5/2014
510-557 Fremont-Newark Multiple 5/17/2001
510-558 Oakland [Berkeley] Multiple N/A
510-559 Oakland [Berkeley] Multiple N/A
510-560 Oakland [Trinidad] Multiple 7/14/2014
510-561 Oakland [Fruitvale] Multiple 4/14/2017
510-562 Oakland [Trinidad] Pacific Bell N/A
510-563 Oakland [Trinidad] Multiple N/A
510-564 Oakland [Trinidad] Multiple N/A
510-565 Fremont-Newark Multiple N/A
510-566 Hayward Multiple N/A
510-567 Oakland [Trinidad] Multiple N/A
510-568 Oakland [Trinidad] Pacific Bell N/A
510-569 Oakland [Trinidad] Pacific Bell N/A
510-570 Oakland [Berkeley] Multiple 9/26/2016
510-571 Hayward Multiple 8/16/2017
510-572 Fremont-Newark MCIMetro Access Transmission Services N/A
510-573 Fremont-Newark Multiple N/A
510-574 Fremont-Newark Multiple N/A
510-575 Oakland [Main-Piedmont] Multiple N/A
510-576 Hayward Multiple N/A
510-577 Oakland [Trinidad] Pacific Bell N/A
510-578 Fremont-Newark Multiple N/A
510-579 Fremont-Newark New Cingular Wireless PCS N/A
510-580 Fremont-Newark MCIMetro Access Transmission Services N/A
510-581 Hayward Pacific Bell N/A
510-582 Hayward Pacific Bell N/A
510-583 Hayward Pacific Bell N/A
510-584 Hayward Multiple N/A
510-585 Fremont-Newark Multiple N/A
510-586 Hayward Multiple N/A
510-587 Oakland [Main-Piedmont] Multiple N/A
510-588 Oakland [Main-Piedmont] Multiple N/A
510-589 Hayward New Cingular Wireless PCS N/A
510-590 Oakland [Main-Piedmont] Multiple N/A
510-591 Fremont-Newark Multiple 02/20/2024
510-592 Hercules-Rodeo Multiple N/A
510-593 Oakland [Main-Piedmont] Multiple N/A
510-594 Oakland [Main-Piedmont] Pacific Bell N/A
510-595 Oakland [Main-Piedmont] Pacific Bell N/A
510-596 Oakland [Main-Piedmont] Multiple N/A
510-597 Oakland [Main-Piedmont] Multiple N/A
510-598 Fremont-Newark Multiple 1/18/2013
510-599 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-600-XXXX --- 510-699-XXXX
NPANXX Area served[1] Provider[2] Date[3]
510-600 Hayward Multiple N/A
510-601 Oakland [Main-Piedmont] Multiple N/A
510-602 Fremont-Newark Multiple 4/4/2017
510-603 Oakland [Fruitvale] Multiple 2/20/2018
510-604 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-605 Hayward Multiple 1/17/2018
510-606 Hayward Multiple 8/10/2010
510-607 Oakland [Main-Piedmont] Multiple 3/16/2018
510-608 Fremont-Newark Multiple N/A
510-609 Richmond Multiple 4/11/2018
510-610 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-612 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-613 Oakland [Trinidad] Multiple N/A
510-614 Oakland [Trinidad] Pacific Bell N/A
510-615 Oakland [Trinidad] Pacific Bell N/A
510-616 Oakland [Berkeley] Multiple 12/18/2017
510-617 Hercules-Rodeo Multiple 8/31/2018
510-618 Oakland [Trinidad] Multiple N/A
510-619 Richmond Multiple N/A
510-620 Richmond Multiple N/A
510-621 Richmond Multiple N/A
510-622 Oakland [Main-Piedmont] Pacific Bell N/A
510-623 Fremont-Newark Multiple N/A
510-624 Fremont-Newark Multiple N/A
510-625 Oakland [Main-Piedmont] Pacific Bell N/A
510-626 Oakland [Trinidad] Multiple 7/29/2016
510-627 Oakland [Main-Piedmont] Multiple N/A
510-628 Oakland [Main-Piedmont] Multiple N/A
510-629 Oakland [Alameda] Multiple N/A
510-630 El Sobrante-Pinole Multiple 10/16/2019
510-631 Oakland [Berkeley] Multiple 10/2/2015
510-632 Oakland [Trinidad] Pacific Bell N/A
510-633 Oakland [Trinidad] Pacific Bell N/A
510-634 Hayward Multiple 9/24/2014
510-635 Oakland [Trinidad] Pacific Bell N/A
510-636 Oakland [Trinidad] Multiple N/A
510-637 Oakland [Main-Piedmont] Multiple N/A
510-638 Oakland [Trinidad] Pacific Bell N/A
510-639 Oakland [Trinidad] Pacific Bell N/A
510-640 El Sobrante-Pinole Multiple 5/1/2015
510-641 El Sobrante-Pinole Multiple 12/10/2020
510-642 Oakland [Berkeley] Pacific Bell N/A
510-643 Oakland [Berkeley] Pacific Bell N/A
510-644 Oakland [Berkeley] Pacific Bell N/A
510-645 Oakland [Main-Piedmont] Pacific Bell N/A
510-646 Oakland [Berkeley] Multiple 3/7/2013
510-647 Oakland [Berkeley] Multiple N/A
510-648 Fremont-Newark Multiple N/A
510-649 Oakland [Berkeley] Pacific Bell N/A
510-650 El Sobrante-Pinole Multiple 12/21/2017
510-651 Fremont-Newark Pacific Bell N/A
510-652 Oakland [Main-Piedmont] Pacific Bell N/A
510-653 Oakland [Main-Piedmont] Pacific Bell N/A
510-654 Oakland [Main-Piedmont] Pacific Bell N/A
510-655 Oakland [Main-Piedmont] Pacific Bell N/A
510-656 Fremont-Newark Pacific Bell N/A
510-657 Fremont-Newark Pacific Bell N/A
510-658 Oakland [Main-Piedmont] Pacific Bell N/A
510-659 Fremont-Newark Multiple N/A
510-660 Richmond Multiple 8/11/2015
510-661 Fremont-Newark Multiple N/A
510-662 El Sobrante-Pinole Multiple N/A
510-663 Oakland [Main-Piedmont] Pacific Bell N/A
510-664 Oakland [Berkeley] Pacific Bell N/A
510-665 Oakland [Berkeley] Multiple N/A
510-666 Oakland [Berkeley] Multiple N/A
510-667 Oakland [Trinidad] Multiple N/A
510-668 Fremont-Newark Multiple N/A
510-669 El Sobrante-Pinole Multiple N/A
510-670 Hayward Pacific Bell N/A
510-671 Oakland [Alameda] Multiple 5/14/2013
510-672 Richmond Multiple 9/19/2002
510-673 Fremont-Newark Cellco Partnership N/A
510-674 Hayward Multiple 11/3/2014
510-675 Fremont-Newark Multiple N/A
510-676 Fremont-Newark New Cingular Wireless PCS 6/14/2002
510-677 Hayward Multiple 3/22/2001
510-678 Oakland [Trinidad] Pacific Bell N/A
510-679 Oakland [Berkeley] Multiple 4/13/2015
510-680 Richmond Multiple 6/3/2013
510-681 Oakland [Main-Piedmont] Multiple N/A
510-682 Oakland [Alameda] Multiple N/A
510-683 Fremont-Newark Multiple N/A
510-684 Oakland [Berkeley] Multiple N/A
510-685 Richmond Cellco Partnership N/A
510-686 Oakland [Trinidad] Multiple N/A
510-687 Fremont-Newark Pacific Bell N/A
510-688 Hayward Multiple N/A
510-689 Oakland [Fruitvale] Multiple 4/20/2001
510-690 Hayward Multiple N/A
510-691 Hercules-Rodeo Multiple 9/19/2001
510-692 Oakland [Trinidad] Multiple N/A
510-693 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-694 Oakland [Alameda] Multiple 12/8/2014
510-695 Hayward Multiple 8/17/2007
510-696 Oakland [Fruitvale] Multiple 6/22/2015
510-697 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-698 Oakland [Fruitvale] Multiple N/A
510-699 Oakland [Main-Piedmont] 33 Wireless N/A
510-701-XXXX --- 510-799-XXXX
NPANXX Area served[1] Provider[2] Date[3]
510-701 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-702 Oakland [Main-Piedmont] USA Mobility Wireless N/A
510-703 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-704 Oakland [Berkeley] Multiple N/A
510-705 Oakland [Berkeley] Multiple N/A
510-706 Hayward MetroPCS 8/22/2001
510-707 Oakland [Trinidad] Multiple 4/1/2016
510-708 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-709 Fremont-Newark Multiple 6/25/2001
510-710 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-712 Oakland [Main-Piedmont] Multiple N/A
510-713 Fremont-Newark Pacific Bell N/A
510-714 Fremont-Newark Multiple N/A
510-715 Oakland [Main-Piedmont] MetroPCS N/A
510-716 Oakland [Main-Piedmont] USA Mobility Wireless N/A
510-717 Oakland [Berkeley] T-Mobile USA 9/19/2002
510-718 Oakland [Main-Piedmont] American Messaging Services N/A
510-719 Oakland [Main-Piedmont] Multiple N/A
510-720 Oakland [Main-Piedmont] USA Mobility Wireless N/A
510-721 Oakland [Main-Piedmont] Onvoy N/A
510-722 Crockett Multiple N/A
510-723 Hayward Multiple N/A
510-724 El Sobrante-Pinole Pacific Bell N/A
510-725 Oakland [Berkeley] Multiple N/A
510-726 Crockett Multiple 8/25/2016
510-727 Hayward Multiple N/A
510-728 Hayward Pacific Bell N/A
510-729 Oakland [Trinidad] Multiple N/A
510-730 Richmond Multiple 2/22/2010
510-731 Hayward Multiple N/A
510-732 Hayward Multiple N/A
510-733 Hayward Pacific Bell N/A
510-734 Richmond New Cingular Wireless PCS N/A
510-735 Oakland [Main-Piedmont] Multiple N/A
510-736 Hayward Multiple 12/9/2013
510-737 Fremont-Newark Multiple 11/13/2015
510-738 Fremont-Newark Multiple 8/26/2016
510-739 Fremont-Newark Multiple N/A
510-740 Oakland [Main-Piedmont] Multiple N/A
510-741 El Sobrante-Pinole Pacific Bell N/A
510-742 Fremont-Newark Pacific Bell N/A
510-743 Fremont-Newark MCIMetro Access Transmission Services N/A
510-744 Fremont-Newark Multiple N/A
510-745 Fremont-Newark Multiple N/A
510-746 Oakland [Trinidad] Multiple 4/23/2001
510-747 Oakland [Alameda] Multiple N/A
510-748 Oakland [Alameda] Pacific Bell N/A
510-749 Oakland [Alameda] Pacific Bell N/A
510-750 Hayward Multiple N/A
510-751 Hayward Multiple N/A
510-752 Oakland [Main-Piedmont] Pacific Bell N/A
510-753 Oakland [Trinidad] Multiple 11/25/2014
510-754 Hayward MetroPCS 5/17/2002
510-755 Hayward Multiple N/A
510-756 Oakland [Trinidad] Multiple 9/9/2015
510-757 Oakland [Main-Piedmont] Multiple N/A
510-758 El Sobrante-Pinole Pacific Bell N/A
510-759 Oakland [Main-Piedmont] Multiple N/A
510-760 Hayward Multiple N/A
510-761 Oakland [Main-Piedmont] Multiple N/A
510-763 Oakland [Main-Piedmont] Pacific Bell N/A
510-764 Oakland [Alameda] Multiple N/A
510-765 El Sobrante-Pinole Pacific Bell N/A
510-766 Fremont-Newark Multiple 3/25/2015
510-767 Fremont-Newark Multiple 11/8/2019
510-768 Oakland [Main-Piedmont] Multiple N/A
510-769 Oakland [Alameda] Pacific Bell N/A
510-770 Fremont-Newark Multiple N/A
510-771 Fremont-Newark Multiple N/A
510-772 Oakland [Main-Piedmont] MetroPCS N/A
510-773 Oakland [Main-Piedmont] Multiple N/A
510-774 Oakland [Main-Piedmont] Multiple N/A
510-775 Oakland [Alameda] Multiple 9/14/2012
510-776 Richmond MetroPCS 9/21/2001
510-777 Oakland [Trinidad] Multiple N/A
510-778 Richmond Multiple 9/21/2006
510-779 El Sobrante-Pinole Multiple N/A
510-780 Hayward Multiple N/A
510-781 Hayward Multiple N/A
510-782 Hayward Pacific Bell N/A
510-783 Hayward Pacific Bell N/A
510-784 Hayward Pacific Bell N/A
510-785 Hayward Pacific Bell N/A
510-786 Hayward Multiple N/A
510-787 Crockett Multiple N/A
510-788 Oakland [Main-Piedmont] Multiple N/A
510-789 Fremont-Newark Multiple N/A
510-790 Fremont-Newark Pacific Bell N/A
510-791 Fremont-Newark Pacific Bell N/A
510-792 Fremont-Newark Pacific Bell N/A
510-793 Fremont-Newark Pacific Bell N/A
510-794 Fremont-Newark Pacific Bell N/A
510-795 Fremont-Newark Pacific Bell N/A
510-796 Fremont-Newark Pacific Bell N/A
510-797 Fremont-Newark Pacific Bell N/A
510-798 Oakland [Trinidad] MetroPCS N/A
510-799 Hercules-Rodeo Pacific Bell N/A
510-800-XXXX --- 510-899-XXXX
NPANXX Area served[1] Provider[2] Date[3]
510-800 Oakland [Alameda] Onvoy N/A
510-801 Oakland [Main-Piedmont] USA Mobility Wireless N/A
510-802 Oakland [Main-Piedmont] USA Mobility Wireless N/A
510-803 Hercules-Rodeo Multiple N/A
510-804 El Sobrante-Pinole Multiple 9/28/2018
510-805 Oakland [Main-Piedmont] USA Mobility Wireless N/A
510-806 Richmond Multiple 6/9/2016
510-807 Hayward Multiple 5/28/2019
510-808 Oakland [Main-Piedmont] Multiple N/A
510-809 Oakland [Berkeley] Multiple N/A
510-810 Oakland [Berkeley] Multiple N/A
510-812 Oakland [Berkeley] Multiple N/A
510-813 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-814 Oakland [Alameda] Pacific Bell N/A
510-815 El Sobrante-Pinole Multiple N/A
510-816 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-817 Oakland [Main-Piedmont] Multiple N/A
510-818 Fremont-Newark Pacific Bell N/A
510-819 Hayward Multiple 06/12/2024
510-820 Oakland [Trinidad] Multiple 7/10/2015
510-821 Oakland [Main-Piedmont] Multiple N/A
510-822 Oakland [Trinidad] Multiple 10/21/2016
510-823 Oakland [Main-Piedmont] Multiple N/A
510-824 Fremont-Newark Multiple N/A
510-825 Hayward MetroPCS 10/18/2001
510-826 Hayward Multiple 12/9/2016
510-827 Oakland [Main-Piedmont] Multiple N/A
510-828 Hayward Cellco Partnership 3/22/2001
510-829 Richmond Multiple 8/18/2014
510-830 Oakland [Main-Piedmont] Multiple 1/25/2001
510-831 Richmond Multiple 12/11/2020
510-832 Oakland [Main-Piedmont] Multiple N/A
510-833 Oakland [Berkeley] Multiple 7/28/2014
510-834 Oakland [Main-Piedmont] Pacific Bell N/A
510-835 Oakland [Main-Piedmont] Pacific Bell N/A
510-836 Oakland [Main-Piedmont] Multiple N/A
510-837 Richmond Multiple N/A
510-838 Oakland [Fruitvale] Multiple 2/28/2014
510-839 Oakland [Main-Piedmont] Pacific Bell N/A
510-840 Oakland [Main-Piedmont] Utility Telecom Group N/A
510-841 Oakland [Berkeley] Pacific Bell N/A
510-842 Oakland [Fruitvale] Multiple N/A
510-843 Oakland [Berkeley] Pacific Bell N/A
510-844 Oakland [Main-Piedmont] Multiple N/A
510-845 Oakland [Berkeley] Pacific Bell N/A
510-846 Oakland [Alameda] Cellco Partnership N/A
510-847 Oakland [Berkeley] Cellco Partnership 3/22/2001
510-848 Oakland [Berkeley] Pacific Bell N/A
510-849 Oakland [Berkeley] Multiple N/A
510-850 Oakland [Trinidad] Multiple 4/13/2015
510-851 Oakland [Main-Piedmont] Multiple N/A
510-852 Oakland [Main-Piedmont] Multiple N/A
510-853 Oakland [Main-Piedmont] Multiple N/A
510-854 El Sobrante-Pinole Multiple 5/17/2001
510-855 Oakland [Main-Piedmont] Utility Telecom Group N/A
510-856 Hayward Multiple N/A
510-857 Fremont-Newark Multiple N/A
510-858 Oakland [Main-Piedmont] Multiple N/A
510-859 Oakland [Berkeley] Multiple N/A
510-860 Richmond Multiple N/A
510-861 Hayward New Cingular Wireless PCS N/A
510-862 Hayward New Cingular Wireless PCS N/A
510-863 Oakland [Alameda] Multiple N/A
510-864 Oakland [Alameda] Pacific Bell N/A
510-865 Oakland [Alameda] Pacific Bell N/A
510-866 Oakland [Fruitvale] Multiple 1/25/2001
510-867 Oakland [Main-Piedmont] Multiple N/A
510-868 Oakland [Berkeley] Multiple N/A
510-869 Oakland [Main-Piedmont] Multiple N/A
510-870 Fremont-Newark Multiple N/A
510-871 Oakland [Alameda] Multiple 7/28/2014
510-872 Oakland [Alameda] Multiple N/A
510-873 Oakland [Main-Piedmont] Multiple N/A
510-874 Oakland [Main-Piedmont] Multiple N/A
510-875 Oakland [Trinidad] Multiple N/A
510-876 Hayward Multiple 3/27/2014
510-877 Oakland [Trinidad] Multiple N/A
510-878 Oakland [Trinidad] Multiple N/A
510-879 Oakland [Main-Piedmont] Multiple N/A
510-880 Hayward Multiple N/A
510-881 Hayward Multiple N/A
510-882 Oakland [Main-Piedmont] Cellco Partnership N/A
510-883 Oakland [Berkeley] Multiple N/A
510-884 Hayward Utility Telecom Group N/A
510-885 Hayward Pacific Bell N/A
510-886 Hayward Pacific Bell N/A
510-887 Hayward Pacific Bell N/A
510-888 Hayward Pacific Bell N/A
510-889 Hayward Multiple N/A
510-890 Richmond Multiple 6/14/2016
510-891 Oakland [Main-Piedmont] Multiple N/A
510-892 Hayward Multiple N/A
510-893 Oakland [Main-Piedmont] Pacific Bell N/A
510-894 Fremont-Newark Multiple N/A
510-895 Oakland [Trinidad] Pacific Bell N/A
510-896 Fremont-Newark Multiple N/A
510-897 Fremont-Newark Multiple N/A
510-898 Oakland [Berkeley] Multiple N/A
510-899 Oakland [Main-Piedmont] Multiple N/A
510-900-XXXX --- 510-999-XXXX
NPANXX Area served[1] Provider[2] Date[3]
510-900 Oakland [Berkeley] Multiple N/A
510-901 Hayward Multiple 7/29/2016
510-902 Fremont-Newark Multiple 12/3/2018
510-903 Oakland [Main-Piedmont] Multiple N/A
510-904 Oakland [Trinidad] Multiple 4/20/2001
510-905 Oakland [Alameda] Multiple 9/17/2018
510-906 Oakland [Alameda] Multiple 7/15/2016
510-907 Oakland [Main-Piedmont] Multiple N/A
510-908 Oakland [Main-Piedmont] Multiple N/A
510-909 Hayward Cellco Partnership N/A
510-910 Oakland [Main-Piedmont] Cellco Partnership N/A
510-912 Oakland [Main-Piedmont] Cellco Partnership N/A
510-913 Oakland [Main-Piedmont] Multiple N/A
510-914 Oakland [Main-Piedmont] Cellco Partnership N/A
510-915 Oakland [Main-Piedmont] Cellco Partnership N/A
510-916 Oakland [Trinidad] Multiple 3/4/2021
510-917 Oakland [Main-Piedmont] Cellco Partnership N/A
510-918 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-919 Oakland [Main-Piedmont] Cellco Partnership N/A
510-920 Oakland [Main-Piedmont] Multiple 3/16/2018
510-921 Hayward Multiple N/A
510-922 Oakland [Main-Piedmont] Multiple N/A
510-923 Oakland [Main-Piedmont] Pacific Bell N/A
510-924 Oakland [Trinidad] Multiple N/A
510-925 Hayward Multiple 9/18/2014
510-926 Oakland [Berkeley] Multiple N/A
510-927 Oakland [Fruitvale] Multiple N/A
510-928 Oakland [Main-Piedmont] New Cingular Wireless PCS N/A
510-929 Oakland [Main-Piedmont] Multiple 3/13/2018
510-930 Oakland [Fruitvale] Multiple 9/20/2018
510-931 Hayward Multiple N/A
510-932 Richmond Multiple 3/22/2001
510-933 Fremont-Newark U.S. Telepacific Corp. 3/1/2001
510-934 Oakland [Fruitvale] Multiple 3/11/2015
510-935 Hayward Multiple 3/27/2014
510-936 Fremont-Newark Multiple N/A
510-937 Crockett Multiple 6/9/2015
510-938 Fremont-Newark MetroPCS 9/21/2001
510-939 Hercules-Rodeo Multiple 3/25/2015
510-940 Hayward Multiple N/A
510-941 Fremont-Newark Multiple 12/12/2016
510-942 Richmond Multiple 12/1/2014
510-943 Fremont-Newark Multiple N/A
510-944 Oakland [Berkeley] Multiple 10/3/2014
510-945 Fremont-Newark Multiple 4/10/2015
510-946 Fremont-Newark Multiple 6/11/2015
510-947 Oakland [Main-Piedmont] Multiple N/A
510-948 Hercules-Rodeo Multiple 8/18/2004
510-949 Hercules-Rodeo Multiple 7/15/2016
510-951 Hayward Multiple 8/5/2021
510-952 Fremont-Newark Multiple 5/17/2001
510-953 Fremont-Newark Multiple 8/5/2014
510-954 Hayward Multiple 12/3/2018
510-955 Oakland [Trinidad] Multiple 4/5/2018
510-956 Oakland [Alameda] Multiple 1/17/2019
510-957 Oakland [Trinidad] Multiple N/A
510-960 Oakland [Berkeley] Multiple N/A
510-961 Fremont-Newark Multiple 4/17/2019
510-962 Hayward Multiple N/A
510-963 Hayward Multiple 11/13/2015
510-964 El Sobrante-Pinole Multiple N/A
510-965 Richmond Multiple N/A
510-966 Richmond Multiple 07/23/2024
510-967 Oakland [Fruitvale] MetroPCS N/A
510-968 Fremont-Newark American Messaging Services N/A
510-969 Oakland [Trinidad] Multiple N/A
510-970 Richmond Pacific Bell N/A
510-971 Oakland [Main-Piedmont] Multiple 12/22/2020
510-972 Fremont-Newark Multiple N/A
510-973 Oakland [Berkeley] Multiple 2/25/2021
510-974 Richmond Multiple 9/19/2014
510-975 Oakland [Alameda] Multiple 1/22/2019
510-976 Oakland [Berkeley] North County Communication Corporation 6/8/2011
510-977 Oakland [Berkeley] Multiple 3/19/2019
510-978 Oakland [Alameda] Multiple N/A
510-979 Fremont-Newark Multiple N/A
510-980 Fremont-Newark Multiple 6/10/2019
510-981 Oakland [Berkeley] Multiple N/A
510-982 Oakland [Berkeley] Multiple N/A
510-983 Fremont-Newark Multiple 2/6/2019
510-984 Oakland [Berkeley] Multiple N/A
510-985 Oakland [Main-Piedmont] Multiple N/A
510-986 Oakland [Main-Piedmont] Multiple N/A
510-987 Oakland [Main-Piedmont] Multiple N/A
510-988 Oakland [Fruitvale] Multiple 3/21/2019
510-989 Oakland [Berkeley] Multiple N/A
510-990 Oakland [Berkeley] Multiple N/A
510-991 Fremont-Newark Multiple N/A
510-992 Oakland [Main-Piedmont] Multiple N/A
510-993 Oakland [Berkeley] Multiple 6/10/2016
510-994 Richmond Multiple 7/26/2019
510-995 Oakland [Alameda] Multiple N/A
510-996 Fremont-Newark Multiple N/A
510-997 Oakland [Main-Piedmont] American Messaging Services N/A
510-998 El Sobrante-Pinole Multiple 3/27/2019
510-999 Hayward Multiple N/A
  1. For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
  2. A single provider refers to the original company controlling a whole NPA-NXX block (10,000 phone numbers). With Number Pooling, NPA-NXX blocks can be split into ten 1,000 phone number blocks and handed over to other service providers (available in the USA and Puerto Rico).
  3. Assignment date. N/A: unavailable date or central office code assigned before 2001.
  4. NXX prefixes last updated: February 13, 2026

Cities in area code 510

City1 County Time zone1
Alameda Alameda P
Albany Alameda P
Berkeley Alameda P
Castro Valley Alameda P
Crockett Contra Costa P
El Cerrito Contra Costa P
El Sobrante Contra Costa P
Emeryville Alameda P
Fremont Alameda P
Hayward Alameda P
Hercules Contra Costa P
Knightsen Contra Costa P
Newark Alameda P
Oakland Alameda P
Piedmont Alameda P
Pinole Contra Costa P
Port Costa Contra Costa P
Richmond Contra Costa P
Rodeo Contra Costa P
San Leandro Alameda P
San Lorenzo Alameda P
San Pablo Contra Costa P
Union City Alameda P
  1. Listed above are most places served by USA area code 510. When multiple places in a US state share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
  2. P stands for Pacific Time (currently ).
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