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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 781 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 11:02:26 AM (Pacific Time Zone).

510 area code location on a map

© OpenStreetMap contributors
For exact boundaries see official 510 area code map

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Locate any 510-NXX prefix:

NPANXX Area served1 Date2
510-200 Hayward 11/12/2008
510-201 Oakland [Main/ Piedmont] 2/14/2009
510-202 Oakland [Main/ Piedmont] N/A
510-203 Fremont/ Newark 9/22/2015
510-204 Oakland [Berkeley] N/A
510-205 Oakland [Alameda] N/A
510-206 Oakland [Main/ Piedmont] N/A
510-207 Oakland [Main/ Piedmont] N/A
510-208 Oakland [Main/ Piedmont] N/A
510-209 Hayward N/A
510-210 Richmond 1/4/2013
510-212 Fremont/ Newark N/A
510-213 Oakland [Fruitvale] 9/19/2002
510-214 Oakland [Alameda] N/A
510-215 Richmond N/A
510-216 Oakland [Fruitvale] 9/27/2019
510-217 Oakland [Alameda] N/A
510-218 Fremont/ Newark N/A
510-219 Oakland [Main/ Piedmont] N/A
510-220 Oakland [Main/ Piedmont] N/A
510-221 Richmond 2/8/2007
510-222 El Sobrante/ Pinole N/A
510-223 El Sobrante/ Pinole N/A
510-224 Hercules/ Rodeo 10/18/2001
510-225 Oakland [Berkeley] N/A
510-226 Fremont/ Newark N/A
510-227 Oakland [Alameda] N/A
510-228 Oakland [Fruitvale] N/A
510-229 Oakland [Berkeley] N/A
510-230 Richmond 2/15/2007
510-231 Richmond N/A
510-232 Richmond N/A
510-233 Richmond N/A
510-234 Richmond N/A
510-235 Richmond N/A
510-236 Richmond N/A
510-237 Richmond N/A
510-238 Oakland [Main/ Piedmont] N/A
510-239 Oakland [Alameda] N/A
510-240 Fremont/ Newark N/A
510-241 El Sobrante/ Pinole 9/22/2015
510-242 Richmond N/A
510-243 El Sobrante/ Pinole N/A
510-244 Hayward 7/25/2011
510-245 Hercules/ Rodeo N/A
510-246 Hayward 8/9/2011
510-247 Hayward N/A
510-248 Fremont/ Newark N/A
510-249 Fremont/ Newark N/A
510-250 Oakland [Main/ Piedmont] N/A
510-251 Oakland [Main/ Piedmont] N/A
510-252 Fremont/ Newark N/A
510-253 Richmond N/A
510-254 Oakland [Alameda] 9/15/2011
510-255 Richmond 4/28/2011
510-256 Crockett N/A
510-257 Fremont/ Newark N/A
510-258 Hayward N/A
510-259 Hayward N/A
510-260 Richmond N/A
510-261 Oakland [Fruitvale] N/A
510-262 El Sobrante/ Pinole N/A
510-263 Oakland [Alameda] N/A
510-264 Hayward N/A
510-265 Hayward N/A
510-266 Hayward N/A
510-267 Oakland [Main/ Piedmont] N/A
510-268 Oakland [Main/ Piedmont] N/A
510-269 Oakland [Fruitvale] N/A
510-270 Fremont/ Newark N/A
510-271 Oakland [Main/ Piedmont] N/A
510-272 Oakland [Main/ Piedmont] N/A
510-273 Oakland [Main/ Piedmont] N/A
510-274 Hayward N/A
510-275 El Sobrante/ Pinole N/A
510-276 Hayward N/A
510-277 Oakland [Berkeley] N/A
510-278 Hayward N/A
510-279 Fremont/ Newark N/A
510-280 Oakland [Berkeley] N/A
510-281 Oakland [Main/ Piedmont] N/A
510-282 Oakland [Main/ Piedmont] 12/26/2001
510-283 El Sobrante/ Pinole N/A
510-284 Fremont/ Newark N/A
510-285 Oakland [Main/ Piedmont] N/A
510-286 Oakland [Main/ Piedmont] N/A
510-287 Oakland [Main/ Piedmont] N/A
510-288 Oakland [Main/ Piedmont] N/A
510-289 Oakland [Main/ Piedmont] N/A
510-290 Oakland [Main/ Piedmont] N/A
510-291 Oakland [Main/ Piedmont] N/A
510-292 Oakland [Berkeley] N/A
510-293 Hayward N/A
510-294 Hayward 11/4/2011
510-295 Oakland [Berkeley] N/A
510-296 Hercules/ Rodeo N/A
510-297 Oakland [Trinidad] N/A
510-298 Fremont/ Newark 12/7/2012
510-299 Fremont/ Newark N/A

NPANXX Area served1 Date2
510-300 Hayward N/A
510-301 Oakland [Main/ Piedmont] N/A
510-302 Oakland [Main/ Piedmont] N/A
510-303 Hayward N/A
510-304 Fremont/ Newark N/A
510-305 Hayward N/A
510-306 Oakland [Alameda] N/A
510-307 Richmond N/A
510-308 Oakland [Main/ Piedmont] N/A
510-309 El Sobrante/ Pinole 10/24/2014
510-310 Oakland [Main/ Piedmont] N/A
510-312 Crockett 08/09/2023
510-313 Hercules/ Rodeo N/A
510-314 Hayward 7/2/2007
510-315 Hayward N/A
510-316 Oakland [Main/ Piedmont] N/A
510-317 Hayward N/A
510-318 Oakland [Main/ Piedmont] N/A
510-319 Fremont/ Newark 12/1/2015
510-320 Fremont/ Newark 9/12/2013
510-321 Oakland [Main/ Piedmont] N/A
510-322 Hercules/ Rodeo N/A
510-323 Richmond N/A
510-324 Fremont/ Newark N/A
510-325 Oakland [Main/ Piedmont] N/A
510-326 Oakland [Main/ Piedmont] N/A
510-327 Hercules/ Rodeo N/A
510-328 Oakland [Fruitvale] 1/31/2013
510-329 Hayward N/A
510-330 Hayward 12/28/2015
510-331 Hayward N/A
510-332 Oakland [Main/ Piedmont] N/A
510-333 Oakland [Main/ Piedmont] N/A
510-334 Richmond N/A
510-335 Fremont/ Newark N/A
510-336 Oakland [Fruitvale] N/A
510-337 Oakland [Alameda] N/A
510-338 Oakland [Main/ Piedmont] N/A
510-339 Oakland [Main/ Piedmont] N/A
510-340 Hayward 5/4/2012
510-342 Hayward N/A
510-343 Oakland [Trinidad] N/A
510-344 Fremont/ Newark N/A
510-345 Oakland [Berkeley] 1/15/2016
510-346 Oakland [Trinidad] N/A
510-347 Oakland [Trinidad] N/A
510-348 Oakland [Main/ Piedmont] N/A
510-349 Richmond N/A
510-350 Oakland [Main/ Piedmont] N/A
510-351 Oakland [Trinidad] N/A
510-352 Oakland [Trinidad] N/A
510-353 Fremont/ Newark N/A
510-354 Fremont/ Newark N/A
510-355 Oakland [Alameda] N/A
510-356 Oakland [Berkeley] 11/28/2007
510-357 Oakland [Trinidad] N/A
510-358 Fremont/ Newark 7/8/2011
510-359 Hayward 8/17/2012
510-360 Fremont/ Newark N/A
510-361 Hayward 10/27/2014
510-362 Hayward 5/16/2013
510-363 Hayward 1/14/2008
510-364 Fremont/ Newark 11/28/2001
510-365 Oakland [Berkeley] 9/26/2013
510-366 Fremont/ Newark N/A
510-367 Richmond N/A
510-368 Oakland [Main/ Piedmont] N/A
510-369 Richmond 2/4/2016
510-370 Hayward 4/13/2012
510-371 Fremont/ Newark 8/7/2008
510-372 Hayward N/A
510-373 Oakland [Alameda] N/A
510-374 Richmond N/A
510-375 Richmond 12/26/2001
510-376 Fremont/ Newark N/A
510-377 Fremont/ Newark N/A
510-378 Fremont/ Newark N/A
510-379 Oakland [Main/ Piedmont] N/A
510-380 Oakland [Main/ Piedmont] N/A
510-381 Oakland [Main/ Piedmont] N/A
510-382 Oakland [Trinidad] N/A
510-383 Oakland [Trinidad] N/A
510-384 Oakland [Main/ Piedmont] N/A
510-385 Oakland [Main/ Piedmont] N/A
510-386 Fremont/ Newark N/A
510-387 Oakland [Main/ Piedmont] N/A
510-388 Oakland [Main/ Piedmont] N/A
510-389 Oakland [Main/ Piedmont] N/A
510-390 Oakland [Main/ Piedmont] N/A
510-391 Fremont/ Newark 12/21/2023
510-392 El Sobrante/ Pinole 01/16/2024
510-393 Oakland [Main/ Piedmont] N/A
510-394 Oakland [Trinidad] N/A
510-395 Oakland [Fruitvale] N/A
510-396 Fremont/ Newark 12/26/2001
510-397 Hayward 8/28/2008
510-398 Hayward 8/17/2012
510-399 Fremont/ Newark 5/6/2016

NPANXX Area served1 Date2
510-400 Fremont/ Newark N/A
510-401 Fremont/ Newark N/A
510-402 Fremont/ Newark N/A
510-403 Fremont/ Newark N/A
510-404 Fremont/ Newark N/A
510-405 Fremont/ Newark N/A
510-406 Oakland [Main/ Piedmont] N/A
510-407 Oakland [Main/ Piedmont] N/A
510-408 El Sobrante/ Pinole 11/25/2009
510-409 Oakland [Main/ Piedmont] N/A
510-410 Oakland [Main/ Piedmont] N/A
510-412 Richmond N/A
510-413 Fremont/ Newark N/A
510-414 Oakland [Main/ Piedmont] N/A
510-415 Hayward 9/19/2001
510-416 Oakland [Berkeley] N/A
510-417 El Sobrante/ Pinole 9/19/2002
510-418 Oakland [Main/ Piedmont] N/A
510-419 Oakland [Main/ Piedmont] N/A
510-420 Oakland [Main/ Piedmont] N/A
510-421 Oakland [Main/ Piedmont] N/A
510-422 Oakland [Fruitvale] 9/25/2015
510-423 Oakland [Berkeley] 11/7/2008
510-424 Oakland [Fruitvale] 7/29/2016
510-425 Oakland [Trinidad] N/A
510-426 Richmond 3/27/2014
510-427 Hayward N/A
510-428 Oakland [Main/ Piedmont] N/A
510-429 Fremont/ Newark N/A
510-430 Oakland [Trinidad] N/A
510-431 Fremont/ Newark N/A
510-432 Hayward 11/28/2001
510-433 Oakland [Main/ Piedmont] N/A
510-434 Oakland [Fruitvale] N/A
510-435 Oakland [Main/ Piedmont] N/A
510-436 Oakland [Fruitvale] N/A
510-437 Oakland [Fruitvale] N/A
510-438 Fremont/ Newark N/A
510-439 Richmond N/A
510-440 Fremont/ Newark N/A
510-441 Fremont/ Newark N/A
510-442 Oakland [Main/ Piedmont] N/A
510-443 Fremont/ Newark 2/14/2009
510-444 Oakland [Main/ Piedmont] N/A
510-445 Fremont/ Newark N/A
510-446 Oakland [Main/ Piedmont] N/A
510-447 Richmond 12/9/2011
510-448 Oakland [Main/ Piedmont] N/A
510-449 Fremont/ Newark N/A
510-450 Oakland [Main/ Piedmont] N/A
510-451 Oakland [Main/ Piedmont] N/A
510-452 Oakland [Main/ Piedmont] N/A
510-453 Fremont/ Newark N/A
510-454 Oakland [Trinidad] 11/30/2012
510-455 Crockett 4/20/2001
510-456 Fremont/ Newark N/A
510-457 Oakland [Main/ Piedmont] N/A
510-458 Fremont/ Newark 10/14/2014
510-459 Oakland [Main/ Piedmont] N/A
510-460 Hayward 2/9/2010
510-461 Hayward 8/21/2002
510-462 Fremont/ Newark 5/4/2016
510-463 Oakland [Main/ Piedmont] N/A
510-464 Oakland [Main/ Piedmont] N/A
510-465 Oakland [Main/ Piedmont] N/A
510-466 Oakland [Main/ Piedmont] N/A
510-467 Oakland [Fruitvale] N/A
510-468 Fremont/ Newark N/A
510-469 Oakland [Main/ Piedmont] N/A
510-470 Hayward 2/22/2010
510-471 Fremont/ Newark N/A
510-472 Oakland [Main/ Piedmont] 8/22/2001
510-473 Oakland [Alameda] N/A
510-474 Fremont/ Newark N/A
510-475 Fremont/ Newark N/A
510-476 Fremont/ Newark N/A
510-477 Fremont/ Newark N/A
510-478 Richmond N/A
510-479 Oakland [Fruitvale] N/A
510-480 El Sobrante/ Pinole 9/26/2013
510-481 Hayward N/A
510-482 Oakland [Fruitvale] N/A
510-483 Oakland [Trinidad] N/A
510-484 Oakland [Main/ Piedmont] N/A
510-485 Oakland [Fruitvale] N/A
510-486 Oakland [Berkeley] N/A
510-487 Fremont/ Newark N/A
510-488 Oakland [Fruitvale] N/A
510-489 Fremont/ Newark N/A
510-490 Fremont/ Newark N/A
510-491 Fremont/ Newark N/A
510-492 Fremont/ Newark N/A
510-493 Fremont/ Newark N/A
510-494 Fremont/ Newark N/A
510-495 Oakland [Berkeley] N/A
510-496 Oakland [Main/ Piedmont] N/A
510-497 Fremont/ Newark N/A
510-498 Fremont/ Newark N/A
510-499 Oakland [Main/ Piedmont] N/A

NPANXX Area served1 Date2
510-500 Oakland [Fruitvale] N/A
510-501 Oakland [Main/ Piedmont] N/A
510-502 Oakland [Main/ Piedmont] N/A
510-503 Oakland [Main/ Piedmont] N/A
510-504 Oakland [Main/ Piedmont] N/A
510-505 Fremont/ Newark N/A
510-506 Oakland [Main/ Piedmont] N/A
510-507 Oakland [Main/ Piedmont] N/A
510-508 Oakland [Main/ Piedmont] N/A
510-509 Fremont/ Newark 7/6/2010
510-512 Hayward N/A
510-513 Fremont/ Newark 8/30/2016
510-514 Hayward 9/19/2016
510-515 Oakland [Main/ Piedmont] N/A
510-516 Fremont/ Newark 9/3/2010
510-517 Oakland [Main/ Piedmont] N/A
510-518 Fremont/ Newark 7/24/2017
510-519 Oakland [Alameda] 8/7/2017
510-520 Oakland [Main/ Piedmont] N/A
510-521 Oakland [Alameda] N/A
510-522 Oakland [Alameda] N/A
510-523 Oakland [Alameda] N/A
510-524 Oakland [Berkeley] N/A
510-525 Oakland [Berkeley] N/A
510-526 Oakland [Berkeley] N/A
510-527 Oakland [Berkeley] N/A
510-528 Oakland [Berkeley] N/A
510-529 Oakland [Berkeley] N/A
510-530 Oakland [Fruitvale] N/A
510-531 Oakland [Fruitvale] N/A
510-532 Oakland [Fruitvale] N/A
510-533 Oakland [Fruitvale] N/A
510-534 Oakland [Fruitvale] N/A
510-535 Oakland [Fruitvale] N/A
510-536 Oakland [Fruitvale] N/A
510-537 Hayward N/A
510-538 Hayward N/A
510-539 Oakland [Main/ Piedmont] N/A
510-540 Oakland [Berkeley] N/A
510-541 Oakland [Main/ Piedmont] N/A
510-542 Oakland [Berkeley] N/A
510-543 Oakland [Main/ Piedmont] N/A
510-544 Oakland [Trinidad] N/A
510-545 Oakland [Alameda] N/A
510-546 Hayward 01/04/2024
510-547 Oakland [Main/ Piedmont] N/A
510-548 Oakland [Berkeley] N/A
510-549 Oakland [Berkeley] N/A
510-550 Oakland [Main/ Piedmont] N/A
510-551 Oakland [Main/ Piedmont] N/A
510-552 Fremont/ Newark 6/25/2001
510-553 Oakland [Trinidad] N/A
510-554 Hayward N/A
510-556 Fremont/ Newark 5/5/2014
510-557 Fremont/ Newark 5/17/2001
510-558 Oakland [Berkeley] N/A
510-559 Oakland [Berkeley] N/A
510-560 Oakland [Trinidad] 7/14/2014
510-561 Oakland [Fruitvale] 4/14/2017
510-562 Oakland [Trinidad] N/A
510-563 Oakland [Trinidad] N/A
510-564 Oakland [Trinidad] N/A
510-565 Fremont/ Newark N/A
510-566 Hayward N/A
510-567 Oakland [Trinidad] N/A
510-568 Oakland [Trinidad] N/A
510-569 Oakland [Trinidad] N/A
510-570 Oakland [Berkeley] 9/26/2016
510-571 Hayward 8/16/2017
510-572 Fremont/ Newark N/A
510-573 Fremont/ Newark N/A
510-574 Fremont/ Newark N/A
510-575 Oakland [Main/ Piedmont] N/A
510-576 Hayward N/A
510-577 Oakland [Trinidad] N/A
510-578 Fremont/ Newark N/A
510-579 Fremont/ Newark N/A
510-580 Fremont/ Newark N/A
510-581 Hayward N/A
510-582 Hayward N/A
510-583 Hayward N/A
510-584 Hayward N/A
510-585 Fremont/ Newark N/A
510-586 Hayward N/A
510-587 Oakland [Main/ Piedmont] N/A
510-588 Oakland [Main/ Piedmont] N/A
510-589 Hayward N/A
510-590 Oakland [Main/ Piedmont] N/A
510-592 Hercules/ Rodeo N/A
510-593 Oakland [Main/ Piedmont] N/A
510-594 Oakland [Main/ Piedmont] N/A
510-595 Oakland [Main/ Piedmont] N/A
510-596 Oakland [Main/ Piedmont] N/A
510-597 Oakland [Main/ Piedmont] N/A
510-598 Fremont/ Newark 1/18/2013
510-599 Oakland [Main/ Piedmont] N/A

NPANXX Area served1 Date2
510-600 Hayward N/A
510-601 Oakland [Main/ Piedmont] N/A
510-602 Fremont/ Newark 4/4/2017
510-603 Oakland [Fruitvale] 2/20/2018
510-604 Oakland [Main/ Piedmont] N/A
510-605 Hayward 1/17/2018
510-606 Hayward 8/10/2010
510-607 Oakland [Main/ Piedmont] 3/16/2018
510-608 Fremont/ Newark N/A
510-609 Richmond 4/11/2018
510-610 Oakland [Main/ Piedmont] N/A
510-612 Oakland [Main/ Piedmont] N/A
510-613 Oakland [Trinidad] N/A
510-614 Oakland [Trinidad] N/A
510-615 Oakland [Trinidad] N/A
510-616 Oakland [Berkeley] 12/18/2017
510-617 Hercules/ Rodeo 8/31/2018
510-618 Oakland [Trinidad] N/A
510-619 Richmond N/A
510-620 Richmond N/A
510-621 Richmond N/A
510-622 Oakland [Main/ Piedmont] N/A
510-623 Fremont/ Newark N/A
510-624 Fremont/ Newark N/A
510-625 Oakland [Main/ Piedmont] N/A
510-626 Oakland [Trinidad] 7/29/2016
510-627 Oakland [Main/ Piedmont] N/A
510-628 Oakland [Main/ Piedmont] N/A
510-629 Oakland [Alameda] N/A
510-630 El Sobrante/ Pinole 10/16/2019
510-631 Oakland [Berkeley] 10/2/2015
510-632 Oakland [Trinidad] N/A
510-633 Oakland [Trinidad] N/A
510-634 Hayward 9/24/2014
510-635 Oakland [Trinidad] N/A
510-636 Oakland [Trinidad] N/A
510-637 Oakland [Main/ Piedmont] N/A
510-638 Oakland [Trinidad] N/A
510-639 Oakland [Trinidad] N/A
510-640 El Sobrante/ Pinole 5/1/2015
510-641 El Sobrante/ Pinole 12/10/2020
510-642 Oakland [Berkeley] N/A
510-643 Oakland [Berkeley] N/A
510-644 Oakland [Berkeley] N/A
510-645 Oakland [Main/ Piedmont] N/A
510-646 Oakland [Berkeley] 3/7/2013
510-647 Oakland [Berkeley] N/A
510-648 Fremont/ Newark N/A
510-649 Oakland [Berkeley] N/A
510-650 El Sobrante/ Pinole 12/21/2017
510-651 Fremont/ Newark N/A
510-652 Oakland [Main/ Piedmont] N/A
510-653 Oakland [Main/ Piedmont] N/A
510-654 Oakland [Main/ Piedmont] N/A
510-655 Oakland [Main/ Piedmont] N/A
510-656 Fremont/ Newark N/A
510-657 Fremont/ Newark N/A
510-658 Oakland [Main/ Piedmont] N/A
510-659 Fremont/ Newark N/A
510-660 Richmond 8/11/2015
510-661 Fremont/ Newark N/A
510-662 El Sobrante/ Pinole N/A
510-663 Oakland [Main/ Piedmont] N/A
510-664 Oakland [Berkeley] N/A
510-665 Oakland [Berkeley] N/A
510-666 Oakland [Berkeley] N/A
510-667 Oakland [Trinidad] N/A
510-668 Fremont/ Newark N/A
510-669 El Sobrante/ Pinole N/A
510-670 Hayward N/A
510-671 Oakland [Alameda] 5/14/2013
510-672 Richmond 9/19/2002
510-673 Fremont/ Newark N/A
510-674 Hayward 11/3/2014
510-675 Fremont/ Newark N/A
510-676 Fremont/ Newark 6/14/2002
510-677 Hayward 3/22/2001
510-678 Oakland [Trinidad] N/A
510-679 Oakland [Berkeley] 4/13/2015
510-680 Richmond 6/3/2013
510-681 Oakland [Main/ Piedmont] N/A
510-682 Oakland [Alameda] N/A
510-683 Fremont/ Newark N/A
510-684 Oakland [Berkeley] N/A
510-685 Richmond N/A
510-686 Oakland [Trinidad] N/A
510-687 Fremont/ Newark N/A
510-688 Hayward N/A
510-689 Oakland [Fruitvale] 4/20/2001
510-690 Hayward N/A
510-691 Hercules/ Rodeo 9/19/2001
510-692 Oakland [Trinidad] N/A
510-693 Oakland [Main/ Piedmont] N/A
510-694 Oakland [Alameda] 12/8/2014
510-695 Hayward 8/17/2007
510-696 Oakland [Fruitvale] 6/22/2015
510-697 Oakland [Main/ Piedmont] N/A
510-698 Oakland [Fruitvale] N/A
510-699 Oakland [Main/ Piedmont] N/A

NPANXX Area served1 Date2
510-701 Oakland [Main/ Piedmont] N/A
510-702 Oakland [Main/ Piedmont] N/A
510-703 Oakland [Main/ Piedmont] N/A
510-704 Oakland [Berkeley] N/A
510-705 Oakland [Berkeley] N/A
510-706 Hayward 8/22/2001
510-707 Oakland [Trinidad] 4/1/2016
510-708 Oakland [Main/ Piedmont] N/A
510-709 Fremont/ Newark 6/25/2001
510-710 Oakland [Main/ Piedmont] N/A
510-712 Oakland [Main/ Piedmont] N/A
510-713 Fremont/ Newark N/A
510-714 Fremont/ Newark N/A
510-715 Oakland [Main/ Piedmont] N/A
510-716 Oakland [Main/ Piedmont] N/A
510-717 Oakland [Berkeley] 9/19/2002
510-718 Oakland [Main/ Piedmont] N/A
510-719 Oakland [Main/ Piedmont] N/A
510-720 Oakland [Main/ Piedmont] N/A
510-721 Oakland [Main/ Piedmont] N/A
510-722 Crockett N/A
510-723 Hayward N/A
510-724 El Sobrante/ Pinole N/A
510-725 Oakland [Berkeley] N/A
510-726 Crockett 8/25/2016
510-727 Hayward N/A
510-728 Hayward N/A
510-729 Oakland [Trinidad] N/A
510-730 Richmond 2/22/2010
510-731 Hayward N/A
510-732 Hayward N/A
510-733 Hayward N/A
510-734 Richmond N/A
510-735 Oakland [Main/ Piedmont] N/A
510-736 Hayward 12/9/2013
510-737 Fremont/ Newark 11/13/2015
510-738 Fremont/ Newark 8/26/2016
510-739 Fremont/ Newark N/A
510-740 Oakland [Main/ Piedmont] N/A
510-741 El Sobrante/ Pinole N/A
510-742 Fremont/ Newark N/A
510-743 Fremont/ Newark N/A
510-744 Fremont/ Newark N/A
510-745 Fremont/ Newark N/A
510-746 Oakland [Trinidad] 4/23/2001
510-747 Oakland [Alameda] N/A
510-748 Oakland [Alameda] N/A
510-749 Oakland [Alameda] N/A
510-750 Hayward N/A
510-751 Hayward N/A
510-752 Oakland [Main/ Piedmont] N/A
510-753 Oakland [Trinidad] 11/25/2014
510-754 Hayward 5/17/2002
510-755 Hayward N/A
510-756 Oakland [Trinidad] 9/9/2015
510-757 Oakland [Main/ Piedmont] N/A
510-758 El Sobrante/ Pinole N/A
510-759 Oakland [Main/ Piedmont] N/A
510-760 Hayward N/A
510-761 Oakland [Main/ Piedmont] N/A
510-763 Oakland [Main/ Piedmont] N/A
510-764 Oakland [Alameda] N/A
510-765 El Sobrante/ Pinole N/A
510-766 Fremont/ Newark 3/25/2015
510-767 Fremont/ Newark 11/8/2019
510-768 Oakland [Main/ Piedmont] N/A
510-769 Oakland [Alameda] N/A
510-770 Fremont/ Newark N/A
510-771 Fremont/ Newark N/A
510-772 Oakland [Main/ Piedmont] N/A
510-773 Oakland [Main/ Piedmont] N/A
510-774 Oakland [Main/ Piedmont] N/A
510-775 Oakland [Alameda] 9/14/2012
510-776 Richmond 9/21/2001
510-777 Oakland [Trinidad] N/A
510-778 Richmond 9/21/2006
510-779 El Sobrante/ Pinole N/A
510-780 Hayward N/A
510-781 Hayward N/A
510-782 Hayward N/A
510-783 Hayward N/A
510-784 Hayward N/A
510-785 Hayward N/A
510-786 Hayward N/A
510-787 Crockett N/A
510-788 Oakland [Main/ Piedmont] N/A
510-789 Fremont/ Newark N/A
510-790 Fremont/ Newark N/A
510-791 Fremont/ Newark N/A
510-792 Fremont/ Newark N/A
510-793 Fremont/ Newark N/A
510-794 Fremont/ Newark N/A
510-795 Fremont/ Newark N/A
510-796 Fremont/ Newark N/A
510-797 Fremont/ Newark N/A
510-798 Oakland [Trinidad] N/A
510-799 Hercules/ Rodeo N/A

NPANXX Area served1 Date2
510-800 Oakland [Alameda] N/A
510-801 Oakland [Main/ Piedmont] N/A
510-802 Oakland [Main/ Piedmont] N/A
510-803 Hercules/ Rodeo N/A
510-804 El Sobrante/ Pinole 9/28/2018
510-805 Oakland [Main/ Piedmont] N/A
510-806 Richmond 6/9/2016
510-807 Hayward 5/28/2019
510-808 Oakland [Main/ Piedmont] N/A
510-809 Oakland [Berkeley] N/A
510-810 Oakland [Berkeley] N/A
510-812 Oakland [Berkeley] N/A
510-813 Oakland [Main/ Piedmont] N/A
510-814 Oakland [Alameda] N/A
510-815 El Sobrante/ Pinole N/A
510-816 Oakland [Main/ Piedmont] N/A
510-817 Oakland [Main/ Piedmont] N/A
510-818 Fremont/ Newark N/A
510-820 Oakland [Trinidad] 7/10/2015
510-821 Oakland [Main/ Piedmont] N/A
510-822 Oakland [Trinidad] 10/21/2016
510-823 Oakland [Main/ Piedmont] N/A
510-824 Fremont/ Newark N/A
510-825 Hayward 10/18/2001
510-826 Hayward 12/9/2016
510-827 Oakland [Main/ Piedmont] N/A
510-828 Hayward 3/22/2001
510-829 Richmond 8/18/2014
510-830 Oakland [Main/ Piedmont] 1/25/2001
510-831 Richmond 12/11/2020
510-832 Oakland [Main/ Piedmont] N/A
510-833 Oakland [Berkeley] 7/28/2014
510-834 Oakland [Main/ Piedmont] N/A
510-835 Oakland [Main/ Piedmont] N/A
510-836 Oakland [Main/ Piedmont] N/A
510-837 Richmond N/A
510-838 Oakland [Fruitvale] 2/28/2014
510-839 Oakland [Main/ Piedmont] N/A
510-840 Oakland [Main/ Piedmont] N/A
510-841 Oakland [Berkeley] N/A
510-842 Oakland [Fruitvale] N/A
510-843 Oakland [Berkeley] N/A
510-844 Oakland [Main/ Piedmont] N/A
510-845 Oakland [Berkeley] N/A
510-846 Oakland [Alameda] N/A
510-847 Oakland [Berkeley] 3/22/2001
510-848 Oakland [Berkeley] N/A
510-849 Oakland [Berkeley] N/A
510-850 Oakland [Trinidad] 4/13/2015
510-851 Oakland [Main/ Piedmont] N/A
510-852 Oakland [Main/ Piedmont] N/A
510-853 Oakland [Main/ Piedmont] N/A
510-854 El Sobrante/ Pinole 5/17/2001
510-855 Oakland [Main/ Piedmont] N/A
510-856 Hayward N/A
510-857 Fremont/ Newark N/A
510-858 Oakland [Main/ Piedmont] N/A
510-859 Oakland [Berkeley] N/A
510-860 Richmond N/A
510-861 Hayward N/A
510-862 Hayward N/A
510-863 Oakland [Alameda] N/A
510-864 Oakland [Alameda] N/A
510-865 Oakland [Alameda] N/A
510-866 Oakland [Fruitvale] 1/25/2001
510-867 Oakland [Main/ Piedmont] N/A
510-868 Oakland [Berkeley] N/A
510-869 Oakland [Main/ Piedmont] N/A
510-870 Fremont/ Newark N/A
510-871 Oakland [Alameda] 7/28/2014
510-872 Oakland [Alameda] N/A
510-873 Oakland [Main/ Piedmont] N/A
510-874 Oakland [Main/ Piedmont] N/A
510-875 Oakland [Trinidad] N/A
510-876 Hayward 3/27/2014
510-877 Oakland [Trinidad] N/A
510-878 Oakland [Trinidad] N/A
510-879 Oakland [Main/ Piedmont] N/A
510-880 Hayward N/A
510-881 Hayward N/A
510-882 Oakland [Main/ Piedmont] N/A
510-883 Oakland [Berkeley] N/A
510-884 Hayward N/A
510-885 Hayward N/A
510-886 Hayward N/A
510-887 Hayward N/A
510-888 Hayward N/A
510-889 Hayward N/A
510-890 Richmond 6/14/2016
510-891 Oakland [Main/ Piedmont] N/A
510-892 Hayward N/A
510-893 Oakland [Main/ Piedmont] N/A
510-894 Fremont/ Newark N/A
510-895 Oakland [Trinidad] N/A
510-896 Fremont/ Newark N/A
510-897 Fremont/ Newark N/A
510-898 Oakland [Berkeley] N/A
510-899 Oakland [Main/ Piedmont] N/A

NPANXX Area served1 Date2
510-900 Oakland [Berkeley] N/A
510-901 Hayward 7/29/2016
510-902 Fremont/ Newark 12/3/2018
510-903 Oakland [Main/ Piedmont] N/A
510-904 Oakland [Trinidad] 4/20/2001
510-905 Oakland [Alameda] 9/17/2018
510-906 Oakland [Alameda] 7/15/2016
510-907 Oakland [Main/ Piedmont] N/A
510-908 Oakland [Main/ Piedmont] N/A
510-909 Hayward N/A
510-910 Oakland [Main/ Piedmont] N/A
510-912 Oakland [Main/ Piedmont] N/A
510-913 Oakland [Main/ Piedmont] N/A
510-914 Oakland [Main/ Piedmont] N/A
510-915 Oakland [Main/ Piedmont] N/A
510-916 Oakland [Trinidad] 3/4/2021
510-917 Oakland [Main/ Piedmont] N/A
510-918 Oakland [Main/ Piedmont] N/A
510-919 Oakland [Main/ Piedmont] N/A
510-920 Oakland [Main/ Piedmont] 3/16/2018
510-921 Hayward N/A
510-922 Oakland [Main/ Piedmont] N/A
510-923 Oakland [Main/ Piedmont] N/A
510-924 Oakland [Trinidad] N/A
510-925 Hayward 9/18/2014
510-926 Oakland [Berkeley] N/A
510-927 Oakland [Fruitvale] N/A
510-928 Oakland [Main/ Piedmont] N/A
510-929 Oakland [Main/ Piedmont] 3/13/2018
510-930 Oakland [Fruitvale] 9/20/2018
510-931 Hayward N/A
510-932 Richmond 3/22/2001
510-933 Fremont/ Newark 3/1/2001
510-934 Oakland [Fruitvale] 3/11/2015
510-935 Hayward 3/27/2014
510-936 Fremont/ Newark N/A
510-937 Crockett 6/9/2015
510-938 Fremont/ Newark 9/21/2001
510-939 Hercules/ Rodeo 3/25/2015
510-940 Hayward N/A
510-941 Fremont/ Newark 12/12/2016
510-942 Richmond 12/1/2014
510-943 Fremont/ Newark N/A
510-944 Oakland [Berkeley] 10/3/2014
510-945 Fremont/ Newark 4/10/2015
510-946 Fremont/ Newark 6/11/2015
510-947 Oakland [Main/ Piedmont] N/A
510-948 Hercules/ Rodeo 8/18/2004
510-949 Hercules/ Rodeo 7/15/2016
510-951 Hayward 8/5/2021
510-952 Fremont/ Newark 5/17/2001
510-953 Fremont/ Newark 8/5/2014
510-954 Hayward 12/3/2018
510-955 Oakland [Trinidad] 4/5/2018
510-956 Oakland [Alameda] 1/17/2019
510-957 Oakland [Trinidad] N/A
510-960 Oakland [Berkeley] N/A
510-961 Fremont/ Newark 4/17/2019
510-962 Hayward N/A
510-963 Hayward 11/13/2015
510-964 El Sobrante/ Pinole N/A
510-965 Richmond N/A
510-967 Oakland [Fruitvale] N/A
510-968 Fremont/ Newark N/A
510-969 Oakland [Trinidad] N/A
510-970 Richmond N/A
510-971 Oakland [Main/ Piedmont] 12/22/2020
510-972 Fremont/ Newark N/A
510-973 Oakland [Berkeley] 2/25/2021
510-974 Richmond 9/19/2014
510-975 Oakland [Alameda] 1/22/2019
510-976 Oakland [Berkeley] 6/8/2011
510-977 Oakland [Berkeley] 3/19/2019
510-978 Oakland [Alameda] N/A
510-979 Fremont/ Newark N/A
510-980 Fremont/ Newark 6/10/2019
510-981 Oakland [Berkeley] N/A
510-982 Oakland [Berkeley] N/A
510-983 Fremont/ Newark 2/6/2019
510-984 Oakland [Berkeley] N/A
510-985 Oakland [Main/ Piedmont] N/A
510-986 Oakland [Main/ Piedmont] N/A
510-987 Oakland [Main/ Piedmont] N/A
510-988 Oakland [Fruitvale] 3/21/2019
510-989 Oakland [Berkeley] N/A
510-990 Oakland [Berkeley] N/A
510-991 Fremont/ Newark N/A
510-992 Oakland [Main/ Piedmont] N/A
510-993 Oakland [Berkeley] 6/10/2016
510-994 Richmond 7/26/2019
510-995 Oakland [Alameda] N/A
510-996 Fremont/ Newark N/A
510-997 Oakland [Main/ Piedmont] N/A
510-998 El Sobrante/ Pinole 3/27/2019
510-999 Hayward 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. Assignment date. N/A - mostly central office codes assigned before 2001.
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Cities in area code 510

City1 County Time2
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 Zone (currently 11:02:26 AM).
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