657 Area Code: Location, Cities, Map And Time Zone
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© OpenStreetMap contributorsFor exact NPA boundaries see official 657 area code map
657-300-XXXX --- 657-399-XXXX
657-400-XXXX --- 657-499-XXXX
657-500-XXXX --- 657-599-XXXX
657-600-XXXX --- 657-699-XXXX
657-701-XXXX --- 657-799-XXXX
657-800-XXXX --- 657-899-XXXX
657-900-XXXX --- 657-999-XXXX
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Area code 657 is in California, USA , spanning 2 counties and serving 21 cities , including Anaheim, Garden Grove or Orange; it currently uses 657 prefixes , assigned from 657-200-XXXX through 657-999-XXXX.
In service since September 23, 2008, area code 657 is an overlay Numbering Plan Area, part of overlay complex 714/657.
The current local time is .
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Locate any 657-NXX prefix:
657-200-XXXX --- 657-299-XXXX| NPANXX | Area served[1] | Provider[2] | Date[3] |
|---|---|---|---|
| 657-200 | Westminster | Multiple | 8/8/2008 |
| 657-201 | Anaheim | Multiple | 9/19/2008 |
| 657-202 | Anaheim | Multiple | 2/11/2009 |
| 657-203 | Huntington Beach | Multiple | 4/14/2010 |
| 657-204 | Huntington Beach | Multiple | 4/14/2010 |
| 657-205 | Santa Ana | Multiple | 5/6/2010 |
| 657-206 | Garden Grove | Multiple | 5/18/2010 |
| 657-207 | Anaheim | Multiple | 5/27/2010 |
| 657-208 | Anaheim | Multiple | 9/9/2010 |
| 657-209 | Silverado | Cellco Partnership | 6/5/2017 |
| 657-210 | Santa Ana | Multiple | 11/11/2010 |
| 657-212 | Santa Ana | Multiple | 11/22/2010 |
| 657-213 | Cypress | Multiple | 6/15/2017 |
| 657-214 | Cypress | Multiple | 11/11/2010 |
| 657-215 | Huntington Beach | Multiple | 11/23/2010 |
| 657-216 | Placentia | Multiple | 4/4/2011 |
| 657-217 | Fullerton | Multiple | 7/18/2011 |
| 657-218 | Santa Ana | Multiple | 2/14/2013 |
| 657-219 | Santa Ana | Cellco Partnership | 7/9/2015 |
| 657-220 | Anaheim | Multiple | 2/14/2013 |
| 657-221 | Orange | Multiple | 2/11/2013 |
| 657-222 | Cypress | Multiple | N/A |
| 657-223 | Orange | Multiple | 6/13/2013 |
| 657-224 | Orange | Multiple | 12/5/2011 |
| 657-225 | Fullerton | Multiple | 4/13/2012 |
| 657-226 | Placentia | Multiple | 3/3/2014 |
| 657-227 | Westminster | Multiple | 4/14/2014 |
| 657-228 | Santa Ana | Peerless Network Of California | 4/13/2012 |
| 657-229 | Santa Ana | Multiple | 2/23/2010 |
| 657-230 | Anaheim | Multiple | 8/5/2014 |
| 657-231 | Santa Ana | Multiple | 12/30/2013 |
| 657-232 | Santa Ana | Multiple | 10/18/2013 |
| 657-233 | Garden Grove | Multiple | 1/24/2014 |
| 657-234 | Yorba Linda | Multiple | 3/21/2014 |
| 657-235 | Santa Ana | Multiple | 7/22/2011 |
| 657-236 | Orange | Multiple | 4/11/2014 |
| 657-237 | Huntington Beach | Multiple | 5/7/2014 |
| 657-238 | Cypress | Multiple | 4/28/2014 |
| 657-239 | Buena Park | Multiple | 10/1/2014 |
| 657-240 | Santa Ana | Cellco Partnership | 7/9/2015 |
| 657-241 | Huntington Beach | Paetec Itel | 9/16/2013 |
| 657-242 | Anaheim | Multiple | 4/28/2014 |
| 657-243 | Fullerton | Multiple | 7/14/2014 |
| 657-244 | Huntington Beach | Multiple | 9/5/2014 |
| 657-245 | Santa Ana | Multiple | 4/13/2012 |
| 657-246 | Brea | Multiple | 9/3/2014 |
| 657-247 | Santa Ana | Multiple | 11/4/2014 |
| 657-248 | Fullerton | Multiple | 10/14/2014 |
| 657-249 | Santa Ana | Cellco Partnership | 7/10/2015 |
| 657-250 | Garden Grove | Multiple | 7/10/2015 |
| 657-251 | Garden Grove | Multiple | 4/11/2014 |
| 657-252 | Buena Park | Multiple | 9/23/2014 |
| 657-253 | Fullerton | Multiple | 10/17/2014 |
| 657-254 | Anaheim | Multiple | 10/16/2014 |
| 657-255 | Buena Park | Multiple | N/A |
| 657-256 | Cypress | Multiple | N/A |
| 657-257 | Westminster | Multiple | 9/11/2015 |
| 657-258 | Placentia | Multiple | 11/25/2014 |
| 657-259 | Huntington Beach | Multiple | 8/26/2015 |
| 657-260 | Silverado | Cellco Partnership | 9/22/2015 |
| 657-261 | Santa Ana | Multiple | N/A |
| 657-262 | Anaheim | Multiple | 12/24/2014 |
| 657-263 | Garden Grove | Multiple | 1/9/2015 |
| 657-264 | Santa Ana | Cellco Partnership | 3/20/2015 |
| 657-265 | Santa Ana | Cellco Partnership | 3/20/2015 |
| 657-266 | Santa Ana | Multiple | 5/11/2015 |
| 657-267 | Santa Ana | Multiple | N/A |
| 657-268 | Santa Ana | Cellco Partnership | 7/10/2015 |
| 657-269 | Santa Ana | Multiple | 3/5/2010 |
| 657-270 | Santa Ana | Cellco Partnership | 10/21/2015 |
| 657-271 | Westminster | Multiple | 5/5/2015 |
| 657-272 | Anaheim | Multiple | 5/20/2015 |
| 657-273 | Santa Ana | Multiple | 5/4/2015 |
| 657-274 | Orange | Multiple | 4/14/2015 |
| 657-275 | Placentia | Multiple | 7/1/2015 |
| 657-276 | Anaheim | Multiple | 7/29/2015 |
| 657-277 | Westminster | Multiple | 11/13/2015 |
| 657-278 | Fullerton | Pacific Bell | 11/21/2008 |
| 657-279 | Santa Ana | Onvoy | 11/23/2015 |
| 657-280 | Huntington Beach | Multiple | 11/13/2015 |
| 657-281 | Orange | Multiple | 8/5/2015 |
| 657-282 | Orange | Multiple | 10/27/2014 |
| 657-283 | Santa Ana | Cellco Partnership | 7/10/2015 |
| 657-284 | Orange | Multiple | 7/30/2015 |
| 657-285 | Santa Ana | Cellco Partnership | 8/17/2015 |
| 657-286 | Brea | Multiple | 9/11/2015 |
| 657-287 | Silverado | Cellco Partnership | 1/15/2016 |
| 657-288 | Westminster | Multiple | 12/7/2015 |
| 657-289 | Santa Ana | Multiple | 12/1/2015 |
| 657-290 | Santa Ana | Cellco Partnership | 1/25/2016 |
| 657-291 | Orange | Multiple | 9/11/2015 |
| 657-292 | Santa Ana | Cellco Partnership | 8/17/2015 |
| 657-293 | Silverado | Multiple | 8/27/2015 |
| 657-294 | Santa Ana | Multiple | 9/11/2015 |
| 657-295 | Anaheim | Multiple | 10/2/2015 |
| 657-296 | Garden Grove | Multiple | 11/23/2015 |
| 657-297 | Silverado | Multiple | 1/18/2016 |
| 657-298 | Cypress | Multiple | 12/7/2015 |
| 657-299 | Santa Ana | Cellco Partnership | 2/10/2016 |
| NPANXX | Area served[1] | Provider[2] | Date[3] |
|---|---|---|---|
| 657-300 | Huntington Beach | Onvoy | N/A |
| 657-301 | Huntington Beach | Multiple | 2/10/2016 |
| 657-302 | Westminster | Cellco Partnership | 2/26/2016 |
| 657-303 | Santa Ana | Cellco Partnership | 3/7/2016 |
| 657-304 | Santa Ana | Multiple | 3/7/2016 |
| 657-305 | Santa Ana | Cellco Partnership | 3/10/2016 |
| 657-306 | Westminster | Multiple | 3/11/2016 |
| 657-307 | Santa Ana | Cellco Partnership | 3/14/2016 |
| 657-308 | Santa Ana | Cellco Partnership | 3/16/2016 |
| 657-309 | Santa Ana | Cellco Partnership | 3/16/2016 |
| 657-310 | Silverado | Multiple | 7/10/2017 |
| 657-312 | Huntington Beach | Multiple | 3/16/2016 |
| 657-313 | Santa Ana | Multiple | 3/22/2016 |
| 657-314 | Silverado | Multiple | 7/24/2017 |
| 657-315 | Placentia | Multiple | N/A |
| 657-316 | Silverado | Cellco Partnership | 4/11/2016 |
| 657-317 | Silverado | Multiple | 9/27/2018 |
| 657-318 | Westminster | Multiple | 4/11/2016 |
| 657-319 | Fullerton | Multiple | 3/29/2018 |
| 657-320 | Orange | Teleport Communications America | 4/12/2018 |
| 657-321 | Santa Ana | Multiple | 3/4/2016 |
| 657-322 | Santa Ana | Cellco Partnership | 1/25/2016 |
| 657-323 | Silverado | Cellco Partnership | 3/20/2017 |
| 657-324 | Santa Ana | Cellco Partnership | 12/7/2015 |
| 657-325 | Buena Park | Multiple | 4/21/2016 |
| 657-326 | Garden Grove | Shelcomm | 5/8/2018 |
| 657-327 | Huntington Beach | Cellco Partnership | 5/12/2016 |
| 657-328 | Santa Ana | Multiple | 5/12/2016 |
| 657-329 | Huntington Beach | Multiple | 5/16/2016 |
| 657-330 | Fullerton | Multiple | 4/13/2012 |
| 657-331 | Anaheim | Multiple | 6/8/2016 |
| 657-332 | Silverado | Multiple | 5/17/2016 |
| 657-333 | Orange | Multiple | N/A |
| 657-334 | Westminster | Multiple | 6/10/2016 |
| 657-335 | Santa Ana | Multiple | 6/17/2016 |
| 657-336 | Santa Ana | Cellco Partnership | N/A |
| 657-337 | Cypress | Multiple | 6/17/2016 |
| 657-338 | Huntington Beach | Cellco Partnership | 7/14/2016 |
| 657-339 | Huntington Beach | Multiple | 8/15/2016 |
| 657-340 | Westminster | Multiple | 8/30/2016 |
| 657-341 | Brea | Multiple | 6/29/2016 |
| 657-342 | Huntington Beach | Multiple | 8/9/2016 |
| 657-343 | Silverado | Cellco Partnership | 8/26/2016 |
| 657-344 | Silverado | Cellco Partnership | 8/26/2016 |
| 657-345 | Yorba Linda | Multiple | 8/26/2016 |
| 657-346 | Santa Ana | Multiple | 9/21/2016 |
| 657-347 | Anaheim | Multiple | N/A |
| 657-348 | Orange | Multiple | 11/18/2016 |
| 657-349 | Westminster | Cellco Partnership | 11/18/2016 |
| 657-350 | Westminster | Cellco Partnership | 11/18/2016 |
| 657-351 | Silverado | Multiple | 11/2/2016 |
| 657-352 | Westminster | Multiple | 1/16/2017 |
| 657-353 | Silverado | Cellco Partnership | 2/10/2017 |
| 657-354 | Fullerton | Multiple | 4/21/2017 |
| 657-355 | Huntington Beach | Multiple | 12/14/2017 |
| 657-356 | Santa Ana | Multiple | 3/17/2017 |
| 657-357 | Santa Ana | Multiple | N/A |
| 657-358 | Santa Ana | Multiple | 4/27/2017 |
| 657-359 | Silverado | Multiple | 6/12/2018 |
| 657-360 | Huntington Beach | Multiple | 9/11/2018 |
| 657-361 | Silverado | Cellco Partnership | 5/19/2017 |
| 657-362 | Anaheim | Shelcomm | 7/31/2018 |
| 657-363 | Yorba Linda | Multiple | 10/17/2014 |
| 657-364 | Westminster | Multiple | 5/10/2017 |
| 657-365 | Huntington Beach | Multiple | 9/18/2018 |
| 657-366 | Yorba Linda | Multiple | 9/25/2018 |
| 657-367 | Westminster | Cellco Partnership | 11/26/2018 |
| 657-368 | Westminster | Multiple | 12/6/2018 |
| 657-369 | Silverado | Cellco Partnership | 1/22/2019 |
| 657-370 | Westminster | Cellco Partnership | 2/13/2019 |
| 657-371 | Huntington Beach | Cellco Partnership | 2/15/2019 |
| 657-372 | Huntington Beach | Multiple | 2/27/2019 |
| 657-373 | Placentia | Multiple | 3/11/2019 |
| 657-374 | Huntington Beach | Cellco Partnership | 3/14/2019 |
| 657-375 | Santa Ana | Multiple | 3/20/2019 |
| 657-376 | Westminster | Multiple | 3/21/2019 |
| 657-377 | Garden Grove | Multiple | 3/22/2016 |
| 657-378 | Fullerton | Multiple | 4/13/2012 |
| 657-379 | Huntington Beach | Cellco Partnership | 4/15/2019 |
| 657-380 | Silverado | Cellco Partnership | 4/22/2019 |
| 657-381 | Huntington Beach | Cellco Partnership | 4/25/2019 |
| 657-382 | Silverado | Cellco Partnership | 5/21/2019 |
| 657-383 | Santa Ana | Multiple | 4/13/2012 |
| 657-384 | Westminster | Multiple | 5/28/2019 |
| 657-385 | Buena Park | Multiple | 6/10/2019 |
| 657-386 | Huntington Beach | Cellco Partnership | 6/20/2019 |
| 657-387 | Yorba Linda | Multiple | 1/20/2016 |
| 657-388 | Huntington Beach | Cellco Partnership | 7/1/2019 |
| 657-389 | Silverado | Cellco Partnership | 8/12/2019 |
| 657-390 | Orange | Multiple | 2/1/2016 |
| 657-391 | Orange | Multiple | 8/22/2019 |
| 657-392 | Huntington Beach | Cellco Partnership | 8/26/2019 |
| 657-393 | Huntington Beach | Cellco Partnership | 7/3/2019 |
| 657-394 | Huntington Beach | Multiple | 8/26/2019 |
| 657-395 | Yorba Linda | Multiple | 9/6/2019 |
| 657-396 | Huntington Beach | Cellco Partnership | 9/20/2019 |
| 657-397 | Santa Ana | Multiple | 10/2/2019 |
| 657-398 | Huntington Beach | Cellco Partnership | 10/9/2019 |
| 657-399 | Santa Ana | Cellco Partnership | 3/14/2019 |
| NPANXX | Area served[1] | Provider[2] | Date[3] |
|---|---|---|---|
| 657-400 | Westminster | Multiple | N/A |
| 657-401 | Santa Ana | Cellco Partnership | 2/13/2019 |
| 657-402 | Westminster | Cellco Partnership | 5/21/2019 |
| 657-403 | Huntington Beach | Cellco Partnership | 10/23/2019 |
| 657-404 | Huntington Beach | Cellco Partnership | 10/30/2019 |
| 657-405 | Santa Ana | Cellco Partnership | 10/30/2019 |
| 657-406 | Silverado | Cellco Partnership | 10/30/2019 |
| 657-407 | Westminster | Cellco Partnership | 10/30/2019 |
| 657-408 | Huntington Beach | Multiple | 12/17/2019 |
| 657-409 | Silverado | Cellco Partnership | 11/8/2019 |
| 657-410 | Silverado | Multiple | 3/14/2019 |
| 657-412 | Huntington Beach | Cellco Partnership | 11/18/2019 |
| 657-413 | Cypress | Multiple | 12/2/2019 |
| 657-414 | Huntington Beach | Cellco Partnership | 12/19/2019 |
| 657-415 | Silverado | Cellco Partnership | 2/10/2020 |
| 657-416 | Huntington Beach | Cellco Partnership | 11/8/2019 |
| 657-417 | Huntington Beach | Cellco Partnership | 1/16/2020 |
| 657-418 | Santa Ana | New Cingular Wireless PCS | 1/28/2020 |
| 657-419 | Santa Ana | Cellco Partnership | 4/22/2019 |
| 657-420 | Westminster | Cellco Partnership | 2/10/2020 |
| 657-421 | Huntington Beach | Cellco Partnership | 1/27/2020 |
| 657-422 | Santa Ana | Multiple | 2/13/2020 |
| 657-423 | Silverado | Cellco Partnership | 2/28/2020 |
| 657-424 | Huntington Beach | Cellco Partnership | 3/10/2020 |
| 657-425 | Westminster | Multiple | 3/13/2020 |
| 657-426 | Huntington Beach | Cellco Partnership | 3/18/2020 |
| 657-427 | Garden Grove | Multiple | 3/19/2020 |
| 657-428 | Orange | Multiple | 3/30/2020 |
| 657-429 | Huntington Beach | Cellco Partnership | 4/2/2020 |
| 657-430 | Santa Ana | Cellco Partnership | 11/8/2019 |
| 657-431 | Westminster | Multiple | 3/20/2019 |
| 657-432 | Silverado | Cellco Partnership | 4/3/2020 |
| 657-433 | Huntington Beach | Cellco Partnership | 2/10/2020 |
| 657-434 | Huntington Beach | Cellco Partnership | 4/13/2020 |
| 657-435 | Westminster | Cellco Partnership | 4/20/2020 |
| 657-436 | Santa Ana | New Cingular Wireless PCS | 4/20/2020 |
| 657-437 | Huntington Beach | Cellco Partnership | 5/11/2020 |
| 657-438 | Orange | Multiple | 6/2/2020 |
| 657-439 | Anaheim | Multiple | 6/4/2020 |
| 657-440 | Anaheim | New Cingular Wireless PCS | 6/11/2020 |
| 657-441 | Westminster | Multiple | N/A |
| 657-442 | Huntington Beach | Cellco Partnership | 7/23/2020 |
| 657-443 | Westminster | Multiple | 6/12/2020 |
| 657-444 | Placentia | Multiple | N/A |
| 657-445 | Fullerton | Multiple | 10/19/2015 |
| 657-446 | Santa Ana | Multiple | 6/30/2020 |
| 657-447 | Westminster | Cellco Partnership | 7/28/2020 |
| 657-448 | Huntington Beach | Cellco Partnership | 7/30/2020 |
| 657-449 | Silverado | Cellco Partnership | 8/5/2020 |
| 657-450 | Santa Ana | Cellco Partnership | 2/28/2020 |
| 657-451 | Huntington Beach | Cellco Partnership | 8/11/2020 |
| 657-452 | Buena Park | Multiple | 8/21/2020 |
| 657-453 | Anaheim | Cellco Partnership | 9/1/2020 |
| 657-454 | Anaheim | Cellco Partnership | 9/17/2020 |
| 657-455 | Santa Ana | Cellco Partnership | 9/25/2020 |
| 657-456 | Anaheim | Multiple | N/A |
| 657-457 | Huntington Beach | Cellco Partnership | 9/28/2020 |
| 657-458 | Westminster | Cellco Partnership | 10/1/2020 |
| 657-459 | Anaheim | Cellco Partnership | 10/8/2020 |
| 657-460 | Santa Ana | Cellco Partnership | 7/30/2020 |
| 657-461 | Silverado | Cellco Partnership | 10/8/2020 |
| 657-462 | Silverado | Cellco Partnership | 11/6/2020 |
| 657-463 | Westminster | Cellco Partnership | 12/14/2020 |
| 657-464 | Huntington Beach | Multiple | N/A |
| 657-465 | Cypress | Multiple | N/A |
| 657-466 | Huntington Beach | Cellco Partnership | 11/6/2020 |
| 657-467 | Santa Ana | Multiple | 12/15/2020 |
| 657-468 | Santa Ana | New Cingular Wireless PCS | 12/16/2020 |
| 657-469 | Anaheim | Cellco Partnership | 12/17/2020 |
| 657-470 | Huntington Beach | Cellco Partnership | 10/8/2020 |
| 657-471 | Westminster | Cellco Partnership | 2/28/2020 |
| 657-472 | Santa Ana | Cellco Partnership | 11/6/2020 |
| 657-473 | Huntington Beach | Cellco Partnership | 12/17/2020 |
| 657-474 | Anaheim | New Cingular Wireless PCS | 12/23/2020 |
| 657-475 | Huntington Beach | Cellco Partnership | 12/28/2020 |
| 657-476 | Huntington Beach | Cellco Partnership | 1/18/2021 |
| 657-477 | Silverado | Cellco Partnership | 12/28/2020 |
| 657-478 | Brea | Multiple | 6/26/2017 |
| 657-479 | Anaheim | Cellco Partnership | 1/18/2021 |
| 657-480 | Anaheim | New Cingular Wireless PCS | 12/23/2020 |
| 657-481 | Huntington Beach | Cellco Partnership | 12/28/2020 |
| 657-482 | Anaheim | Cellco Partnership | 1/28/2021 |
| 657-483 | Huntington Beach | Cellco Partnership | 1/28/2021 |
| 657-484 | Santa Ana | Cellco Partnership | 1/28/2021 |
| 657-485 | Huntington Beach | Multiple | 1/29/2021 |
| 657-486 | Silverado | Multiple | 2/1/2021 |
| 657-487 | Santa Ana | Multiple | 2/4/2021 |
| 657-488 | Santa Ana | Cellco Partnership | 5/11/2020 |
| 657-489 | Anaheim | Cellco Partnership | 2/9/2021 |
| 657-490 | Huntington Beach | Cellco Partnership | 2/9/2021 |
| 657-491 | Westminster | Cellco Partnership | 2/17/2021 |
| 657-492 | Anaheim | Cellco Partnership | 3/9/2021 |
| 657-493 | Huntington Beach | Cellco Partnership | 3/9/2021 |
| 657-494 | Anaheim | Cellco Partnership | 3/26/2021 |
| 657-495 | Anaheim | Cellco Partnership | 3/22/2021 |
| 657-496 | Huntington Beach | Cellco Partnership | 5/27/2021 |
| 657-497 | Anaheim | Cellco Partnership | 4/15/2021 |
| 657-498 | Huntington Beach | Cellco Partnership | 4/15/2021 |
| 657-499 | Orange | Multiple | 3/5/2021 |
| NPANXX | Area served[1] | Provider[2] | Date[3] |
|---|---|---|---|
| 657-500 | Fullerton | Multiple | N/A |
| 657-501 | Huntington Beach | Cellco Partnership | 6/10/2021 |
| 657-502 | Huntington Beach | Multiple | 6/9/2021 |
| 657-503 | Anaheim | Cellco Partnership | 6/17/2021 |
| 657-504 | Huntington Beach | Cellco Partnership | 6/17/2021 |
| 657-505 | Anaheim | Multiple | 5/19/2021 |
| 657-506 | Santa Ana | Cellco Partnership | 6/17/2021 |
| 657-507 | Silverado | Cellco Partnership | 6/17/2021 |
| 657-508 | Cypress | Multiple | 6/30/2021 |
| 657-509 | Santa Ana | New Cingular Wireless PCS | 7/1/2021 |
| 657-510 | Anaheim | Cellco Partnership | 7/7/2021 |
| 657-512 | Huntington Beach | Cellco Partnership | 7/7/2021 |
| 657-513 | Anaheim | Cellco Partnership | 7/19/2021 |
| 657-514 | Buena Park | Multiple | 7/29/2021 |
| 657-515 | Huntington Beach | Cellco Partnership | 7/28/2021 |
| 657-516 | Anaheim | Cellco Partnership | 10/26/2021 |
| 657-517 | Huntington Beach | Cellco Partnership | 8/5/2021 |
| 657-518 | Anaheim | Cellco Partnership | 11/22/2021 |
| 657-519 | Cypress | Cellco Partnership | 9/17/2021 |
| 657-520 | Santa Ana | Multiple | 9/2/2021 |
| 657-521 | Anaheim | Cellco Partnership | 6/10/2021 |
| 657-522 | Yorba Linda | Multiple | 3/13/2018 |
| 657-523 | Garden Grove | Multiple | 9/27/2021 |
| 657-524 | Westminster | Cellco Partnership | 10/26/2021 |
| 657-525 | Fullerton | Multiple | 9/24/2021 |
| 657-526 | Anaheim | Multiple | 10/6/2021 |
| 657-527 | Anaheim | T-Mobile USA | 8/23/2021 |
| 657-528 | Westminster | Cellco Partnership | 6/16/2021 |
| 657-529 | Buena Park | Multiple | N/A |
| 657-530 | Brea | Multiple | 10/26/2021 |
| 657-531 | Huntington Beach | Multiple | 10/13/2021 |
| 657-532 | Santa Ana | Multiple | 11/4/2021 |
| 657-533 | Anaheim | Multiple | 7/7/2021 |
| 657-534 | Orange | Multiple | 11/17/2021 |
| 657-535 | Yorba Linda | Multiple | 8/23/2021 |
| 657-536 | Anaheim | Cellco Partnership | 1/7/2022 |
| 657-537 | Silverado | Multiple | 12/10/2021 |
| 657-538 | Silverado | Cellco Partnership | 3/29/2021 |
| 657-539 | Anaheim | Cellco Partnership | 11/10/2021 |
| 657-540 | Huntington Beach | Multiple | 1/10/2022 |
| 657-541 | Huntington Beach | Cellco Partnership | 11/15/2021 |
| 657-542 | Huntington Beach | Cellco Partnership | 1/7/2022 |
| 657-543 | Santa Ana | Multiple | 1/10/2022 |
| 657-544 | Silverado | Multiple | 7/7/2021 |
| 657-545 | Santa Ana | Cellco Partnership | 1/7/2022 |
| 657-546 | Anaheim | Cellco Partnership | 1/10/2022 |
| 657-547 | Huntington Beach | Cellco Partnership | 1/11/2022 |
| 657-548 | Westminstr | Cellco Partnership | 1/7/2022 |
| 657-549 | Anaheim | Multiple | 2/23/2010 |
| 657-550 | Anaheim | Cellco Partnership | 1/13/2022 |
| 657-551 | Westminster | Multiple | 11/9/2021 |
| 657-552 | Westminster | Cellco Partnership | 8/5/2021 |
| 657-553 | Santa Ana | Multiple | 11/4/2021 |
| 657-554 | Fullerton | Cellco Partnership | 1/13/2022 |
| 657-556 | Cypress | Multiple | 11/18/2021 |
| 657-557 | Santa Ana | Cellco Partnership | 1/17/2022 |
| 657-558 | Anaheim | Cellco Partnership | 8/5/2021 |
| 657-559 | Westminster | Cellco Partnership | 1/17/2022 |
| 657-560 | Anaheim | Cellco Partnership | 2/10/2022 |
| 657-561 | Orange | Multiple | 1/25/2022 |
| 657-562 | Orange | Multiple | 1/27/2022 |
| 657-563 | Huntington Beach | Cellco Partnership | 1/27/2022 |
| 657-564 | Huntington Beach | Cellco Partnership | 2/24/2022 |
| 657-565 | Santa Ana | Multiple | 2/2/2022 |
| 657-566 | Fullerton | Multiple | 1/27/2021 |
| 657-567 | Santa Ana | Multiple | 3/27/2020 |
| 657-568 | Huntington Beach | Cellco Partnership | 2/10/2022 |
| 657-569 | Huntington Beach | Cellco Partnership | 2/10/2022 |
| 657-570 | Anaheim | Cellco Partnership | 2/24/2022 |
| 657-571 | Yorba Linda | Multiple | 3/11/2022 |
| 657-572 | Huntington Beach | Cellco Partnership | 3/7/2022 |
| 657-573 | Cypress | Cellco Partnership | 4/12/2022 |
| 657-574 | Anaheim | Cellco Partnership | 4/12/2022 |
| 657-575 | Anaheim | Cellco Partnership | 3/15/2022 |
| 657-576 | Anaheim | Cellco Partnership | 5/20/2022 |
| 657-577 | Fullerton | Multiple | 6/1/2020 |
| 657-578 | Anaheim | Cellco Partnership | 3/7/2022 |
| 657-579 | Orange | Multiple | 5/10/2022 |
| 657-580 | Anaheim | Cellco Partnership | 3/28/2022 |
| 657-581 | Orange | Cellco Partnership | 4/25/2022 |
| 657-582 | Anaheim | Multiple | 2/24/2022 |
| 657-583 | Garden Grove | Cellco Partnership | 5/6/2022 |
| 657-584 | Anaheim | Cellco Partnership | 4/28/2022 |
| 657-585 | Santa Ana | Multiple | 4/25/2022 |
| 657-586 | Huntington Beach | Cellco Partnership | 3/2/2022 |
| 657-587 | Silverado | Multiple | 6/17/2021 |
| 657-588 | Brea | Multiple | 6/1/2020 |
| 657-589 | Huntington Beach | Cellco Partnership | 5/13/2022 |
| 657-590 | Silverado | Cellco Partnership | 5/27/2022 |
| 657-591 | Huntington Beach | Cellco Partnership | 5/20/2022 |
| 657-592 | Anaheim | Cellco Partnership | 3/2/2022 |
| 657-593 | Westminster | Cellco Partnership | 5/27/2022 |
| 657-594 | Anaheim | Multiple | 6/17/2022 |
| 657-595 | Anaheim | Cellco Partnership | 5/27/2022 |
| 657-596 | Huntington Beach | Cellco Partnership | 5/27/2022 |
| 657-597 | Anaheim | Cellco Partnership | 6/21/2022 |
| 657-598 | Anaheim | Cellco Partnership | 6/7/2022 |
| 657-599 | Westminster | Multiple | 3/5/2021 |
| NPANXX | Area served[1] | Provider[2] | Date[3] |
|---|---|---|---|
| 657-600 | Santa Ana | Multiple | N/A |
| 657-601 | Santa Ana | Cellco Partnership | 6/7/2022 |
| 657-602 | Anaheim | Multiple | 6/8/2022 |
| 657-603 | Cypress | Cellco Partnership | 6/7/2022 |
| 657-604 | Orange | Multiple | 6/23/2022 |
| 657-605 | Orange | Multiple | 6/29/2022 |
| 657-606 | Garden Grove | Multiple | 6/29/2022 |
| 657-607 | Anaheim | Cellco Partnership | 7/18/2022 |
| 657-608 | Orange | Multiple | 7/14/2022 |
| 657-609 | Huntington Beach | Cellco Partnership | 7/21/2022 |
| 657-610 | Santa Ana | Multiple | 6/9/2022 |
| 657-612 | Garden Grove | Multiple | 7/22/2022 |
| 657-613 | Cypress | Multiple | 7/26/2022 |
| 657-614 | Anaheim | Cellco Partnership | 8/10/2022 |
| 657-615 | Anaheim | Multiple | 8/12/2022 |
| 657-616 | Huntington Beach | Multiple | 8/19/2022 |
| 657-617 | Anaheim | Cellco Partnership | 10/21/2022 |
| 657-618 | Santa Ana | Multiple | 9/20/2022 |
| 657-619 | Orange | Multiple | 10/4/2022 |
| 657-620 | Cypress | Multiple | 10/27/2022 |
| 657-621 | Westminster | Multiple | 10/12/2022 |
| 657-622 | Santa Ana | Multiple | 5/18/2009 |
| 657-623 | Anaheim | Multiple | 10/11/2022 |
| 657-624 | Anaheim | Cellco Partnership | 10/27/2022 |
| 657-625 | Cypress | Multiple | 9/20/2022 |
| 657-626 | Placentia | Multiple | 1/14/2022 |
| 657-627 | Silverado | Cellco Partnership | 10/21/2022 |
| 657-628 | Huntington Beach | Cellco Partnership | 10/21/2022 |
| 657-629 | Westminster | Multiple | 10/27/2022 |
| 657-630 | Huntington Beach | Cellco Partnership | 10/27/2022 |
| 657-631 | Fullerton | Multiple | 9/20/2022 |
| 657-632 | Fullerton | Multiple | 10/28/2022 |
| 657-633 | Huntington Beach | Multiple | 7/7/2021 |
| 657-634 | Anaheim | Cellco Partnership | 11/4/2022 |
| 657-635 | Santa Ana | Cellco Partnership | 10/27/2022 |
| 657-636 | Garden Grove | Cellco Partnership | 11/9/2022 |
| 657-637 | Anaheim | Cellco Partnership | 11/7/2022 |
| 657-638 | Huntington Beach | Cellco Partnership | 11/7/2022 |
| 657-639 | Huntington Beach | Cellco Partnership | 1/13/2022 |
| 657-640 | Anaheim | Multiple | 11/15/2022 |
| 657-641 | Santa Ana | Multiple | 11/8/2022 |
| 657-642 | Huntington Beach | Multiple | 11/15/2022 |
| 657-643 | Santa Ana | Multiple | 11/16/2022 |
| 657-644 | Cypress | Multiple | 9/21/2020 |
| 657-645 | Santa Ana | Multiple | 12/6/2022 |
| 657-646 | Huntington Beach | Cellco Partnership | 01/04/2023 |
| 657-647 | Orange | Multiple | 12/16/2022 |
| 657-648 | Santa Ana | Cellco Partnership | 01/04/2023 |
| 657-649 | Silverado | Multiple | 01/04/2023 |
| 657-650 | Orange | Multiple | 9/23/2020 |
| 657-651 | Anaheim | Cellco Partnership | 01/04/2023 |
| 657-652 | Anaheim | Multiple | 1/19/2022 |
| 657-653 | Anaheim | Cellco Partnership | 01/11/2023 |
| 657-654 | Anaheim | Cellco Partnership | 01/18/2023 |
| 657-655 | Santa Ana | Multiple | 6/1/2020 |
| 657-656 | Anaheim | Multiple | 12/10/2020 |
| 657-657 | Anaheim | Multiple | 3/7/2019 |
| 657-658 | Anaheim | Cellco Partnership | 01/30/2023 |
| 657-659 | Anaheim | Cellco Partnership | 02/02/2023 |
| 657-660 | Santa Ana | Multiple | 4/18/2019 |
| 657-661 | Huntington Beach | Cellco Partnership | 02/02/2023 |
| 657-662 | Santa Ana | Multiple | 02/02/2023 |
| 657-663 | Westminster | Multiple | 02/02/2023 |
| 657-664 | Silverado | Multiple | 02/02/2023 |
| 657-665 | Anaheim | Cellco Partnership | 02/10/2023 |
| 657-666 | Westminster | Multiple | N/A |
| 657-667 | Garden Grove | Multiple | 3/15/2013 |
| 657-668 | Anaheim | Cellco Partnership | 02/10/2023 |
| 657-669 | Orange | Multiple | 03/24/2023 |
| 657-670 | Westminster | Multiple | 04/07/2023 |
| 657-671 | Brea | Multiple | 08/10/2023 |
| 657-672 | Anaheim | Cellco Partnership | 07/25/2023 |
| 657-673 | Huntington Beach | Cellco Partnership | 07/25/2023 |
| 657-674 | Orange | New Cingular Wireless PCS | 07/25/2023 |
| 657-675 | Anaheim | Cellco Partnership | 08/08/2023 |
| 657-676 | Santa Ana | Multiple | 08/10/2023 |
| 657-677 | Orange | Multiple | 6/1/2020 |
| 657-678 | Anaheim | Multiple | 08/10/2023 |
| 657-679 | Garden Grove | Multiple | 08/10/2023 |
| 657-680 | Santa Ana | Multiple | 08/11/2023 |
| 657-681 | Fullerton | Multiple | 08/23/2023 |
| 657-682 | Anaheim | Cellco Partnership | 08/23/2023 |
| 657-683 | Huntington Beach | Cellco Partnership | 08/23/2023 |
| 657-684 | Orange | Multiple | 08/23/2023 |
| 657-685 | Anaheim | Cellco Partnership | 09/11/2023 |
| 657-686 | Garden Grove | Multiple | 2/21/2022 |
| 657-687 | Anaheim | Cellco Partnership | 09/12/2023 |
| 657-688 | Placentia | Multiple | 6/1/2020 |
| 657-689 | Cypress | Multiple | 09/12/2023 |
| 657-690 | Huntington Beach | Cellco Partnership | 09/13/2023 |
| 657-691 | Anaheim | Cellco Partnership | 09/18/2023 |
| 657-692 | Anaheim | Cellco Partnership | 09/21/2023 |
| 657-693 | Santa Ana | Multiple | 1/11/2022 |
| 657-694 | Huntington Beach | Cellco Partnership | 09/21/2023 |
| 657-695 | Huntington Beach | Multiple | 09/26/2023 |
| 657-696 | Anaheim | Cellco Partnership | 09/29/2023 |
| 657-697 | Huntington Beach | Cellco Partnership | 09/29/2023 |
| 657-698 | Westminster | Multiple | 09/29/2023 |
| 657-699 | Santa Ana | Multiple | 3/17/2015 |
| NPANXX | Area served[1] | Provider[2] | Date[3] |
|---|---|---|---|
| 657-701 | Garden Grove | Multiple | 10/02/2023 |
| 657-702 | Anaheim | Cellco Partnership | 10/04/2023 |
| 657-703 | Huntington Beach | Cellco Partnership | 10/04/2023 |
| 657-704 | Huntington Beach | Multiple | 10/04/2023 |
| 657-705 | Cypress | Multiple | 10/10/2023 |
| 657-706 | Fullerton | Multiple | 10/13/2023 |
| 657-707 | Anaheim | Cellco Partnership | 10/20/2023 |
| 657-708 | Placentia | Multiple | 11/02/2023 |
| 657-709 | Santa Ana | Multiple | 12/04/2023 |
| 657-710 | Garden Grove | Multiple | 12/05/2023 |
| 657-712 | Anaheim | Multiple | 12/15/2023 |
| 657-713 | Santa Ana | Multiple | 12/29/2023 |
| 657-714 | Buena Park | Multiple | 05/31/2024 |
| 657-715 | Silverado | Cellco Partnership | 12/27/2023 |
| 657-716 | Huntington Beach | Cellco Partnership | 01/25/2024 |
| 657-717 | Anaheim | Cellco Partnership | 01/29/2024 |
| 657-718 | Anaheim | Cellco Partnership | 02/02/2024 |
| 657-719 | Anaheim | Cellco Partnership | 02/20/2024 |
| 657-720 | Santa Ana | Multiple | 8/1/2017 |
| 657-721 | Huntington Beach | Cellco Partnership | 02/20/2024 |
| 657-722 | Garden Grove | Multiple | N/A |
| 657-723 | Anaheim | Cellco Partnership | 02/27/2024 |
| 657-724 | Anaheim | Multiple | 9/21/2020 |
| 657-725 | Huntington Beach | Cellco Partnership | 02/27/2024 |
| 657-726 | Silverado | Cellco Partnership | 03/06/2024 |
| 657-727 | Anaheim | Cellco Partnership | 03/12/2024 |
| 657-728 | Huntington Beach | Cellco Partnership | 03/12/2024 |
| 657-729 | Santa Ana | Multiple | 03/12/2024 |
| 657-730 | Anaheim | Cellco Partnership | 03/25/2024 |
| 657-731 | Anaheim | Multiple | 03/27/2024 |
| 657-732 | Silverado | Multiple | 5/13/2019 |
| 657-733 | Huntington Beach | Multiple | 9/21/2020 |
| 657-734 | Huntington Beach | Cellco Partnership | 03/27/2024 |
| 657-735 | Anaheim | Cellco Partnership | 03/28/2024 |
| 657-736 | Anaheim | Cellco Partnership | 04/04/2024 |
| 657-737 | Anaheim | Cellco Partnership | 04/09/2024 |
| 657-738 | Orange | Cellco Partnership | 04/09/2024 |
| 657-739 | Anaheim | Multiple | 11/15/2021 |
| 657-740 | Anaheim | Cellco Partnership | 04/25/2024 |
| 657-741 | Huntington Beach | Cellco Partnership | 04/25/2024 |
| 657-742 | Huntington Beach | Multiple | 3/18/2022 |
| 657-743 | Cypress | Multiple | 05/08/2024 |
| 657-744 | Santa Ana | Multiple | 7/7/2021 |
| 657-745 | Anaheim | Cellco Partnership | 05/08/2024 |
| 657-746 | Westminster | Multiple | 1/11/2022 |
| 657-747 | Huntington Beach | Cellco Partnership | 05/08/2024 |
| 657-748 | Anaheim | Cellco Partnership | 05/21/2024 |
| 657-749 | Fullerton | Cellco Partnership | 05/21/2024 |
| 657-750 | Huntington Beach | Cellco Partnership | 05/21/2024 |
| 657-751 | Fullerton | Multiple | 05/22/2024 |
| 657-752 | Orange | Multiple | 05/31/2024 |
| 657-753 | Anaheim | Cellco Partnership | 07/10/2024 |
| 657-754 | Garden Grove | Multiple | 07/30/2024 |
| 657-755 | Huntington Beach | Multiple | 4/29/2021 |
| 657-756 | Huntington Beach | Multiple | 11/8/2022 |
| 657-757 | Santa Ana | Multiple | 9/23/2020 |
| 657-758 | Anaheim | Multiple | 5/13/2019 |
| 657-759 | Brea | Multiple | 08/06/2024 |
| 657-760 | Huntington Beach | Multiple | 08/06/2024 |
| 657-761 | Anaheim | Cellco Partnership | 08/13/2024 |
| 657-762 | Cypress | Multiple | 08/13/2024 |
| 657-763 | Huntington Beach | Cellco Partnership | 08/16/2024 |
| 657-764 | Anaheim | Cellco Partnership | 08/20/2024 |
| 657-765 | Westminster | Multiple | 09/09/2024 |
| 657-766 | Santa Ana | Multiple | 5/13/2019 |
| 657-767 | Fullerton | Multiple | 1/11/2022 |
| 657-768 | Anaheim | Multiple | 09/12/2024 |
| 657-769 | Anaheim | Cellco Partnership | 09/17/2024 |
| 657-770 | Westminster | Multiple | 6/9/2022 |
| 657-771 | Santa Ana | Multiple | 09/20/2024 |
| 657-772 | Garden Grove | Multiple | 10/21/2024 |
| 657-773 | Huntington Beach | Multiple | 10/21/2024 |
| 657-774 | Orange | Multiple | 11/07/2024 |
| 657-775 | Orange | Multiple | 11/20/2024 |
| 657-776 | Anaheim | Multiple | 12/06/2024 |
| 657-777 | Cypress | Multiple | N/A |
| 657-778 | Anaheim | Cellco Partnership | 12/19/2024 |
| 657-779 | Westminster | Multiple | 12/20/2024 |
| 657-780 | Anaheim | Cellco Partnership | 01/03/2025 |
| 657-781 | Huntington Beach | Cellco Partnership | 01/06/2025 |
| 657-782 | Anaheim | Cellco Partnership | 01/06/2025 |
| 657-783 | Yorba Linda | New Cingular Wireless PCS | 01/06/2025 |
| 657-784 | Silverado | Cellco Partnership | 01/10/2025 |
| 657-785 | Anaheim | Cellco Partnership | 01/13/2025 |
| 657-786 | Santa Ana | Multiple | 7/10/2020 |
| 657-787 | Huntington Beach | Cellco Partnership | 01/13/2025 |
| 657-788 | Silverado | Multiple | 1/4/2021 |
| 657-789 | Anaheim | Multiple | 2/17/2021 |
| 657-790 | Westminster | Cellco Partnership | 01/14/2025 |
| 657-791 | Anaheim | Cellco Partnership | 01/17/2025 |
| 657-792 | Huntington Beach | Cellco Partnership | 01/17/2025 |
| 657-793 | Fullerton | Cellco Partnership | 01/22/2025 |
| 657-794 | Anaheim | Cellco Partnership | 01/22/2025 |
| 657-795 | Huntington Beach | Cellco Partnership | 01/22/2025 |
| 657-796 | Huntington Beach | Cellco Partnership | 01/28/2025 |
| 657-797 | Anaheim | Cellco Partnership | 01/28/2025 |
| 657-798 | Anaheim | Cellco Partnership | 02/12/2025 |
| 657-799 | Fullerton | Multiple | 7/10/2020 |
| NPANXX | Area served[1] | Provider[2] | Date[3] |
|---|---|---|---|
| 657-800 | Garden Grove | Multiple | N/A |
| 657-801 | Cypress | Multiple | 02/18/2025 |
| 657-802 | Anaheim | Cellco Partnership | 03/07/2025 |
| 657-803 | Anaheim | Cellco Partnership | 03/13/2025 |
| 657-804 | Anaheim | Cellco Partnership | 03/18/2025 |
| 657-805 | Garden Grove | Cellco Partnership | 03/27/2025 |
| 657-806 | Huntington Beach | Cellco Partnership | 04/02/2025 |
| 657-807 | Westminster | Cellco Partnership | 04/02/2025 |
| 657-808 | Anaheim | Cellco Partnership | 04/03/2025 |
| 657-809 | Orange | Cellco Partnership | 04/07/2025 |
| 657-810 | Anaheim | Cellco Partnership | 04/25/2025 |
| 657-812 | Santa Ana | Multiple | 04/29/2025 |
| 657-813 | Cypress | Cellco Partnership | 05/06/2025 |
| 657-814 | Anaheim | Cellco Partnership | 05/08/2025 |
| 657-815 | Anaheim | Cellco Partnership | 05/16/2025 |
| 657-816 | Garden Grove | Cellco Partnership | 06/04/2025 |
| 657-817 | Anaheim | Cellco Partnership | 06/04/2025 |
| 657-818 | Cypress | Multiple | 06/05/2025 |
| 657-819 | Anaheim | Cellco Partnership | 06/11/2025 |
| 657-820 | Anaheim | Multiple | 06/23/2025 |
| 657-821 | Anaheim | Cellco Partnership | 07/10/2025 |
| 657-822 | Orange | Multiple | 4/19/2021 |
| 657-823 | Anaheim | Cellco Partnership | 07/28/2025 |
| 657-824 | Anaheim | Cellco Partnership | 08/06/2025 |
| 657-825 | Anaheim | T-Mobile USA | 06/21/2024 |
| 657-826 | Huntington Beach | Cellco Partnership | 08/26/2025 |
| 657-827 | Silverado | Cellco Partnership | 09/04/2025 |
| 657-828 | Huntington Beach | Cellco Partnership | 09/04/2025 |
| 657-829 | Anaheim | Cellco Partnership | 09/04/2025 |
| 657-830 | Anaheim | Cellco Partnership | 09/23/2025 |
| 657-831 | Anaheim | Cellco Partnership | 09/30/2025 |
| 657-832 | Silverado | Multiple | 1/12/2022 |
| 657-833 | Santa Ana | Multiple | 4/22/2021 |
| 657-834 | Anaheim | Cellco Partnership | 10/08/2025 |
| 657-835 | Anaheim | Multiple | 11/13/2025 |
| 657-836 | Anaheim | Cellco Partnership | 11/14/2025 |
| 657-837 | Buena Park | Multiple | 1/10/2022 |
| 657-838 | Garden Grove | Cellco Partnership | 11/14/2025 |
| 657-839 | Huntington Beach | Cellco Partnership | 11/14/2025 |
| 657-840 | Westminster | Cellco Partnership | 11/14/2025 |
| 657-841 | Huntington Beach | Cellco Partnership | 11/18/2025 |
| 657-842 | Anaheim | Multiple | 7/10/2020 |
| 657-844 | Silverado | Multiple | 4/20/2021 |
| 657-845 | Huntington Beach | Multiple | 3/12/2013 |
| 657-855 | Anaheim | Multiple | 4/19/2021 |
| 657-859 | Santa Ana | Multiple | 6/12/2008 |
| 657-860 | Anaheim | Cellco Partnership | 10/23/2025 |
| 657-866 | Yorba Linda | Multiple | 9/21/2020 |
| 657-867 | Huntington Beach | Multiple | 7/10/2020 |
| 657-877 | Huntington Beach | Multiple | 5/13/2019 |
| 657-888 | Orange | Multiple | N/A |
| 657-895 | Huntington Beach | Multiple | 9/23/2020 |
| 657-897 | Orange | Teleport Communications America | 11/14/2025 |
| 657-898 | Santa Ana | Multiple | 10/22/2025 |
| 657-899 | Santa Ana | Multiple | 2/25/2021 |
| NPANXX | Area served[1] | Provider[2] | Date[3] |
|---|---|---|---|
| 657-900 | Santa Ana | Multiple | N/A |
| 657-922 | Huntington Beach | Multiple | 3/9/2021 |
| 657-933 | Orange | Multiple | 9/21/2020 |
| 657-944 | Garden Grove | Multiple | 11/6/2020 |
| 657-946 | Silverado | Multiple | 7/10/2020 |
| 657-955 | Westminster | Multiple | 9/2/2020 |
| 657-957 | Santa Ana | Cellco Partnership | 10/26/2021 |
| 657-966 | Santa Ana | Multiple | 9/21/2020 |
| 657-977 | Westminster | Multiple | 5/13/2019 |
| 657-999 | Anaheim | Multiple | N/A |
- 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.
- 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).
- Assignment date. N/A: unavailable date or central office code assigned before 2001.
- NXX prefixes last updated: February 13, 2026
Cities in area code 657
| City1 | County | Time zone1 |
|---|---|---|
| Anaheim | Orange | P |
| Atwood | Orange | P |
| Brea | Orange | P |
| Buena Park | Orange | P |
| Cypress | Orange | P |
| Fountain Valley | Orange | P |
| Fullerton | Orange | P |
| Garden Grove | Orange | P |
| Huntington Beach | Orange | P |
| La Mirada | Los Angeles | P |
| La Palma | Orange | P |
| Midway City | Orange | P |
| Orange | Orange | P |
| Placentia | Orange | P |
| Santa Ana | Orange | P |
| Silverado | Orange | P |
| Stanton | Orange | P |
| Tustin | Orange | P |
| Villa Park | Orange | P |
| Westminster | Orange | P |
| Yorba Linda | Orange | P |
- Listed above are most places served by USA area code 657. 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.
- P stands for Pacific Time (currently ).
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