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

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Area code 661 is in California, USA , spanning 4 counties and serving 45 cities , including Bakersfield, Santa Clarita or Lancaster; it currently uses 664 prefixes , assigned from 661-200-XXXX through 661-999-XXXX.

In service date for area code 661: February 13, 1999.

The current local time is .

661 area code location on a map
© OpenStreetMap contributorsFor exact NPA boundaries see official 661 area code map

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More California area codes:

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Locate any 661-NXX prefix:

661-200-XXXX --- 661-299-XXXX
NPANXX Carrier1 Area Served2 Date3
661-200 Pacific Bell Santa Clarita [Newhall-Castaic] 11/28/2007
661-201 T-Mobile USA Bakersfield N/A
661-202 Level 3 Telecom Of California Palmdale N/A
661-203 Cellco Partnership Bakersfield N/A
661-204 New Cingular Wireless PCS Bakersfield N/A
661-205 New Cingular Wireless PCS Bakersfield N/A
661-206 Paetec Itel Lancaster N/A
661-207 Utility Telecom Group Santa Clarita [Newhall-Castaic] N/A
661-208 Cellco Partnership Palmdale 1/17/2007
661-209 MetroPCS Networks Palmdale [Agua Dulce] 2/11/2002
661-210 New Cingular Wireless PCS Santa Clarita [Newhall-Castaic] N/A
661-212 MetroPCS Networks Santa Clarita [Saugus-Canyon Country] 2/11/2002
661-213 MetroPCS Bakersfield North 2/11/2002
661-214 Level 3 Communications Lost Hills N/A
661-215 Onvoy Bakersfield North N/A
661-216 American Messaging Services Lancaster N/A
661-217 American Messaging Services Buttonwillow N/A
661-218 Bright House Ntws Information Svcs (california) Ca Bakersfield North 7/19/2017
661-219 MCIMetro Access Transmission Services Santa Clarita [Newhall-Castaic] N/A
661-220 T-Mobile USA Arvin 1/16/2002
661-221 T-Mobile USA Mojave 1/16/2002
661-222 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-223 Pacific Bell Palmdale N/A
661-224 Pacific Bell Palmdale N/A
661-225 Pacific Bell Palmdale N/A
661-226 American Messaging Services Arvin N/A
661-227 MetroPCS Networks Palmdale 10/10/2016
661-228 Onvoy Hi Vista N/A
661-229 New Cingular Wireless PCS Delano N/A
661-230 Bandwidth.com Clec Edwards N/A
661-231 Bandwidth.com Clec Lebec N/A
661-232 T-Mobile USA Mojave N/A
661-233 Pacific Bell Palmdale N/A
661-234 T-Mobile USA Palmdale N/A
661-235 Bandwidth.com Clec Rosamond N/A
661-236 Pacific Bell Palmdale N/A
661-237 Bandwidth.com Clec Shafter N/A
661-238 Bandwidth.com Clec Tehachapi N/A
661-239 Bandwidth.com Clec Walkerbsin N/A
661-240 Ip Horizon Wasco N/A
661-241 Bandwidth.com Clec Bakersfield South N/A
661-242 Pacific Bell Lebec N/A
661-243 Bandwidth.com Clec Bakersfield North N/A
661-244 Onvoy Santa Clarita [Newhall-Castaic] N/A
661-245 Pacific Bell Lebec N/A
661-246 New Cingular Wireless PCS Bakersfield N/A
661-247 T-Mobile USA Arvin N/A
661-248 Pacific Bell Lebec N/A
661-249 Bandwidth.com Clec Big Butte N/A
661-250 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-251 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-252 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-253 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-254 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-255 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-256 Pacific Bell Rosamond N/A
661-257 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-258 Pacific Bell Edwards N/A
661-259 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-260 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-261 Pacific Bell Big Butte N/A
661-262 Ip Horizon Lake Hughes N/A
661-263 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-264 Pacific Bell Palmdale N/A
661-265 Pacific Bell Palmdale N/A
661-266 Pacific Bell Palmdale N/A
661-267 Pacific Bell Palmdale N/A
661-268 Pacific Bell Palmdale [Agua Dulce] N/A
661-269 Pacific Bell Palmdale N/A
661-270 Pacific Bell Palmdale [Leon Valley] N/A
661-271 Level 3 Telecom Of California Mojave N/A
661-272 Pacific Bell Palmdale N/A
661-273 Pacific Bell Palmdale N/A
661-274 Pacific Bell Palmdale N/A
661-275 Pacific Bell Edwards N/A
661-276 Pacific Bell Edwards N/A
661-277 Pacific Bell Edwards N/A
661-278 Level 3 Telecom Of California Edwards N/A
661-279 Level 3 Telecom Of California Rosamond N/A
661-280 Utility Telecom Group Palmdale [Leon Valley] N/A
661-281 MCIMetro Access Transmission Services Bakersfield N/A
661-282 MCIMetro Access Transmission Services Bakersfield South N/A
661-283 MCIMetro Access Transmission Services Bakersfield N/A
661-284 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-285 Pacific Bell Palmdale N/A
661-286 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-287 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-288 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-289 New Cingular Wireless PCS Lebec N/A
661-290 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-291 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-292 T-Mobile USA Shafter 1/16/2002
661-293 T-Mobile USA Taft 1/16/2002
661-294 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-295 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-296 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-297 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-298 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-299 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-300-XXXX --- 661-399-XXXX
NPANXX Carrier1 Area Served2 Date3
661-300 T-Mobile USA Tehachapi 1/16/2002
661-301 New Cingular Wireless PCS Bakersfield N/A
661-302 Level 3 Communications Bakersfield 6/3/2005
661-303 New Cingular Wireless PCS Bakersfield N/A
661-304 New Cingular Wireless PCS Bakersfield N/A
661-305 Cellco Partnership Palmdale N/A
661-306 Level 3 Communications Lake Hughes N/A
661-307 American Messaging Services Bakersfield N/A
661-308 Csc Wireless Bakersfield 2/13/2020
661-309 MCIMetro Access Transmission Services Santa Clarita [Saugus-Canyon Country] N/A
661-310 Level 3 Communications Santa Clarita [Newhall-Castaic] N/A
661-312 MetroPCS Networks Santa Clarita [Newhall-Castaic] N/A
661-313 MetroPCS Networks Santa Clarita [Saugus-Canyon Country] N/A
661-314 T-Mobile USA Bakersfield 11/14/2016
661-315 New Cingular Wireless PCS Palmdale 2/18/2020
661-316 MCIMetro Access Transmission Services Bakersfield N/A
661-317 T-Mobile USA Palmdale 12/14/2001
661-318 33 Wireless Bakersfield N/A
661-319 New Cingular Wireless PCS Bakersfield N/A
661-320 Level 3 Communications Lebec N/A
661-321 Pacific Bell Bakersfield N/A
661-322 Pacific Bell Bakersfield N/A
661-323 Pacific Bell Bakersfield N/A
661-324 Pacific Bell Bakersfield N/A
661-325 Pacific Bell Bakersfield N/A
661-326 Pacific Bell Bakersfield N/A
661-327 Pacific Bell Bakersfield N/A
661-328 Pacific Bell Bakersfield N/A
661-329 USA Mobility Wireless Bakersfield N/A
661-330 New Cingular Wireless PCS Bakersfield N/A
661-331 New Cingular Wireless PCS Bakersfield N/A
661-332 New Cingular Wireless PCS Bakersfield N/A
661-333 New Cingular Wireless PCS Bakersfield N/A
661-334 Pacific Bell Bakersfield N/A
661-335 Pacific Bell Bakersfield N/A
661-336 Pacific Bell Bakersfield N/A
661-337 Pacific Bell Bakersfield N/A
661-338 Level 3 Communications Lake Hughes N/A
661-339 Level 3 Communications Hi Vista N/A
661-340 New Cingular Wireless PCS Bakersfield 2/15/2002
661-341 AT&T Lancaster N/A
661-342 Cellco Partnership Bakersfield N/A
661-343 MetroPCS Bakersfield 5/21/2001
661-344 MetroPCS Earlimart N/A
661-345 New Cingular Wireless PCS Bakersfield N/A
661-346 MetroPCS Bakersfield 4/12/2007
661-347 Level 3 Communications Santa Clarita [Saugus-Canyon Country] 2/20/2002
661-348 Bright House Ntws Information Svcs (california) Ca Bakersfield 5/7/2007
661-349 Level 3 Communications Palmdale 2/20/2002
661-350 New Cingular Wireless PCS Palmdale 1/9/2003
661-351 Utility Telecom Group Lake Hughes N/A
661-352 Utility Telecom Group Edwards N/A
661-353 Utility Telecom Group Lancaster N/A
661-354 Utility Telecom Group Bakersfield N/A
661-355 Utility Telecom Group Rosamond N/A
661-356 Utility Telecom Group Mojave N/A
661-357 Utility Telecom Group Tehachapi N/A
661-358 Utility Telecom Group Taft N/A
661-359 Utility Telecom Group Delano N/A
661-360 New Cingular Wireless PCS Santa Clarita [Saugus-Canyon Country] 1/13/2003
661-361 Paetec Itel Palmdale N/A
661-362 Paetec Itel Santa Clarita [Newhall-Castaic] N/A
661-363 Pacific Bell Bakersfield N/A
661-364 Pacific Bell Bakersfield N/A
661-365 T-Mobile USA Palmdale 5/24/2016
661-366 Pacific Bell Bakersfield N/A
661-367 Paetec Itel Santa Clarita [Saugus-Canyon Country] N/A
661-368 Teleport Communications America Bakersfield North 6/11/2007
661-369 Cellco Partnership Bakersfield 9/15/2007
661-370 Level 3 Communications Delano N/A
661-371 Onvoy Bakersfield N/A
661-372 Bandwidth.com Clec Delano 4/7/2014
661-373 T-Mobile USA Santa Clarita [Newhall-Castaic] 12/14/2001
661-374 Onvoy Bakersfield 12/21/2007
661-375 Cellco Partnership Delano N/A
661-376 Bandwidth.com Clec Bakersfield 4/2/2008
661-377 U.S. Telepacific Corp. Bakersfield 10/11/2002
661-378 Onvoy Bakersfield N/A
661-379 Bandwidth.com Clec Bakersfield 4/28/2009
661-380 Race Telecommunications Bakersfield 4/28/2009
661-381 U.S. Telepacific Corp. Bakersfield South 5/21/2009
661-382 Bandwidth.com Clec Palmdale 9/23/2001
661-383 Pacific Bell Santa Clarita [Newhall-Castaic] 2/17/2015
661-384 Onvoy Bakersfield N/A
661-385 Teleport Communications America Edwards 3/12/2010
661-386 Charter Fiberlink Ca-Cco Rosamond 9/26/2016
661-387 Pacific Bell Bakersfield North N/A
661-388 Time Warner Cbl Info Svcs (ca) Santa Clarita [Newhall-Castaic] 8/16/2010
661-389 New Cingular Wireless PCS Palmdale 02/20/2024
661-390 U.S. Telepacific Corp. Arvin 12/14/2006
661-391 Pacific Bell Bakersfield North N/A
661-392 Pacific Bell Bakersfield North N/A
661-393 Pacific Bell Bakersfield North N/A
661-394 Pacific Bell Bakersfield N/A
661-395 Pacific Bell Bakersfield N/A
661-396 Pacific Bell Bakersfield South N/A
661-397 Pacific Bell Bakersfield South N/A
661-398 Pacific Bell Bakersfield South N/A
661-399 Pacific Bell Bakersfield North N/A
661-400-XXXX --- 661-499-XXXX
NPANXX Carrier1 Area Served2 Date3
661-400 New Cingular Wireless PCS Palmdale N/A
661-401 Cellco Partnership Bakersfield 8/11/2010
661-402 MetroPCS Networks Palmdale [Agua Dulce] 2/4/2011
661-403 T-Mobile USA Palmdale 1/16/2017
661-404 Telnyx Bakersfield 12/15/2016
661-405 New Cingular Wireless PCS Lancaster 8/1/2017
661-406 New Cingular Wireless PCS Palmdale N/A
661-407 Terra Nova Telecom Bakersfield N/A
661-409 MetroPCS Networks Palmdale 6/30/2017
661-410 U.S. Telepacific Corp. Bakersfield North 3/1/2001
661-412 AT&T Enterprises Bakersfield South 4/2/2008
661-413 Bandwidth.com Clec Cuyama N/A
661-414 Level 3 Telecom Of California Santa Clarita [Newhall-Castaic] N/A
661-416 T-Mobile USA Arvin 8/29/2016
661-417 MetroPCS Networks Santa Clarita [Newhall-Castaic] 6/30/2017
661-418 T-Mobile USA Lancaster 2/24/2012
661-419 Shelcomm Hi Vista 7/31/2018
661-420 Level 3 Communications Cuyama N/A
661-421 T-Mobile USA Bakersfield 3/9/2015
661-422 Bandwidth.com Clec Palmdale [Leon Valley] N/A
661-423 Frontier California Lancaster N/A
661-424 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-425 Bandwidth.com Clec Santa Clarita [Newhall-Castaic] 3/21/2014
661-426 Onvoy Bakersfield 1/14/2013
661-427 MetroPCS Bakersfield N/A
661-428 Cellco Partnership Bakersfield 2/9/2001
661-429 T-Mobile USA Lancaster 9/24/2012
661-430 Level 3 Communications Santa Clarita [Saugus-Canyon Country] N/A
661-431 U.S. Telepacific Corp. Bakersfield 5/16/2005
661-432 Cellco Partnership Bakersfield 8/30/2012
661-433 Cellco Partnership Palmdale N/A
661-434 Cellco Partnership Palmdale 11/11/2011
661-435 New Cingular Wireless PCS Palmdale N/A
661-436 AT&T Enterprises Arvin 12/14/2009
661-437 MetroPCS Bakersfield 8/28/2012
661-438 Level 3 Communications Wasco N/A
661-439 MetroPCS Bakersfield 8/16/2018
661-440 MetroPCS Bakersfield 4/18/2014
661-441 Centurylink Communications Palmdale 2/1/2013
661-442 Shelcomm Santa Clarita [Newhall-Castaic] 8/12/2004
661-443 Onvoy Walkerbsin N/A
661-444 T-Mobile USA Bakersfield N/A
661-445 T-Mobile USA Lancaster 10/14/2014
661-446 Teleport Communications America Delano 8/7/2012
661-447 T-Mobile USA Bakersfield 12/9/2013
661-448 Nuso Bakersfield 11/6/2012
661-449 Onvoy Palmdale N/A
661-450 Level 3 Communications Palmdale [Agua Dulce] N/A
661-451 Onvoy Arvin N/A
661-452 Telnyx Berrenda Mesa N/A
661-453 Level 3 Communications California Hot Springs N/A
661-454 Bright House Ntws Information Svcs (california) Ca Delano N/A
661-455 Level 3 Communications Glennville N/A
661-456 Level 3 Communications Palmdale N/A
661-457 Terra Nova Telecom Lost Hills N/A
661-458 Level 3 Communications Mcfarland N/A
661-459 Onvoy Shafter N/A
661-460 Level 3 Communications Walkerbsin N/A
661-461 Level 3 Communications Lebec N/A
661-462 Onvoy Big Butte N/A
661-463 Onvoy Hi Vista N/A
661-464 Onvoy Lake Hughes N/A
661-465 Frontier California Berrenda Mesa N/A
661-466 Onvoy Lancaster N/A
661-467 Onvoy Santa Clarita [Saugus-Canyon Country] N/A
661-468 Ip Horizon Palmdale [Agua Dulce] 3/12/2001
661-469 Bright House Ntws Information Svcs (california) Ca Buttonwillow N/A
661-470 New Cingular Wireless PCS Lancaster 6/9/2014
661-471 Centurylink Communications Lancaster 2/1/2013
661-472 T-Mobile USA Bakersfield 12/14/2001
661-473 Bandwidth.com Clec Bakersfield South 1/29/2013
661-474 Cellco Partnership Delano 3/5/2010
661-475 Onvoy Edwards N/A
661-476 Cellco Partnership Santa Clarita [Newhall-Castaic] 6/16/2006
661-477 Cellco Partnership Bakersfield 11/13/2001
661-478 Cellco Partnership Palmdale N/A
661-479 Peerless Network Of California Bakersfield 11/18/2016
661-480 MCIMetro Access Transmission Services Palmdale 8/25/2006
661-481 Peerless Network Of California Santa Clarita [Newhall-Castaic] 3/9/2013
661-482 Time Warner Cbl Info Svcs (ca) Edwards 3/12/2013
661-483 Cellco Partnership Lancaster 6/24/2014
661-484 Cellco Partnership Bakersfield South 10/30/2019
661-485 MetroPCS Networks Palmdale 1/8/2014
661-486 MetroPCS Networks Palmdale [Agua Dulce] 3/21/2014
661-487 New Cingular Wireless PCS Bakersfield 3/1/2005
661-488 T-Mobile USA Lancaster 12/22/2014
661-489 Bandwidth.com Clec Bakersfield 4/22/2014
661-490 MetroPCS Bakersfield 4/13/2015
661-491 Bandwidth.com Clec Bakersfield South N/A
661-492 T-Mobile USA Lancaster 10/10/2001
661-493 U.S. Telepacific Corp. Bakersfield 4/25/2014
661-494 New Cingular Wireless PCS Lancaster 10/8/2014
661-495 Onvoy Santa Clarita [Newhall-Castaic] N/A
661-496 New Cingular Wireless PCS Bakersfield N/A
661-497 MetroPCS Bakersfield 12/24/2014
661-498 Vonage America Bakersfield North 11/26/2018
661-499 Airespring Lancaster 5/19/2020
661-500-XXXX --- 661-599-XXXX
NPANXX Carrier1 Area Served2 Date3
661-500 Cellco Partnership Taft 09/21/2023
661-501 Bright House Ntws Information Svcs (california) Ca Bakersfield South 7/17/2018
661-502 MetroPCS Networks Santa Clarita [Newhall-Castaic] 5/27/2020
661-503 T-Mobile USA Palmdale 7/28/2020
661-504 New Cingular Wireless PCS Palmdale 8/4/2020
661-505 Level 3 Communications Santa Clarita [Newhall-Castaic] 5/1/2001
661-506 New Cingular Wireless PCS Palmdale 9/8/2020
661-507 New Cingular Wireless PCS Palmdale N/A
661-508 New Cingular Wireless PCS Palmdale 4/29/2021
661-509 Bandwidth.com Clec Bakersfield South 10/5/2020
661-510 MetroPCS Networks Santa Clarita [Newhall-Castaic] N/A
661-512 MetroPCS Networks Palmdale [Agua Dulce] 9/23/2020
661-513 Pacific Bell Santa Clarita [Saugus-Canyon Country] N/A
661-514 New Cingular Wireless PCS Mcfarland 9/17/2020
661-515 Bandwidth.com Clec Hi Vista 9/25/2018
661-516 HD Carrier Bakersfield 9/30/2020
661-517 Onvoy Delano N/A
661-518 Telnyx Tehachapi 2/2/2021
661-519 T-Mobile USA Arvin 6/30/2021
661-520 Peerless Network Of California Bakersfield 5/7/2014
661-521 New Cingular Wireless PCS Palmdale 7/29/2021
661-522 Bandwidth.com Clec Lancaster 2/9/2015
661-523 New Cingular Wireless PCS Santa Clarita [Saugus-Canyon Country] 10/8/2014
661-524 Level 3 Communications Lancaster 5/27/2008
661-525 Level 3 Communications Bakersfield North 11/25/2014
661-526 AT&T Enterprises Palmdale 10/24/2006
661-527 Bandwidth.com Clec Bakersfield South 4/14/2015
661-528 Level 3 Communications Rosamond N/A
661-529 Onvoy Bakersfield South N/A
661-531 T-Mobile USA Arvin 10/28/2021
661-532 Ip Horizon Big Butte N/A
661-533 Pacific Bell Palmdale N/A
661-534 Centurylink Communications Delano 3/4/2015
661-535 New Cingular Wireless PCS Bakersfield North 7/16/2015
661-536 Frontier California Glennville N/A
661-537 Pacific Bell Palmdale N/A
661-538 Pacific Bell Palmdale N/A
661-539 Onvoy Spectrum Mcfarland 11/12/2021
661-540 Pacific Bell Palmdale N/A
661-541 Cellco Partnership Bakersfield 10/3/2019
661-542 Onvoy Santa Clarita [Saugus-Canyon Country] N/A
661-543 New Cingular Wireless PCS Mcfarland 8/4/2015
661-544 MetroPCS Networks Palmdale 1/14/2010
661-545 T-Mobile USA Delano 10/16/2020
661-546 Centurylink Communications Bakersfield 2/16/2015
661-547 T-Mobile USA Lancaster N/A
661-548 Frontier California California Hot Springs N/A
661-549 New Cingular Wireless PCS Bakersfield 7/12/2001
661-550 Bandwidth.com Clec Big Butte 9/22/2021
661-551 Onvoy Berrenda Mesa N/A
661-552 Ip Horizon Earlimart 2/7/2001
661-553 Bandwidth.com Clec Delano 4/28/2015
661-554 Onvoy Santa Clarita [Newhall-Castaic] N/A
661-556 Cellco Partnership Bakersfield South 3/21/2014
661-557 Cellco Partnership Arvin N/A
661-558 Onvoy Bakersfield N/A
661-560 Twilio International Wasco N/A
661-561 Onvoy Delano 3/27/2020
661-563 MetroPCS Bakersfield 7/28/2015
661-564 MCIMetro Access Transmission Services Bakersfield South 4/21/2015
661-565 Teleport Communications America Bakersfield N/A
661-566 T-Mobile USA Palmdale 3/19/2019
661-567 Bandwidth.com Clec Bakersfield 4/27/2015
661-568 Teleport Communications America Santa Clarita [Newhall-Castaic] N/A
661-569 T-Mobile USA Bakersfield 12/10/2021
661-570 Cellco Partnership Bakersfield South 3/9/2022
661-571 Cellco Partnership Lancaster 4/12/2022
661-572 Pacific Bell Palmdale N/A
661-573 New Cingular Wireless PCS Bakersfield 7/16/2015
661-574 Pacific Bell Palmdale N/A
661-575 Pacific Bell Palmdale N/A
661-576 T-Mobile USA Palmdale 8/3/2015
661-577 MetroPCS Taft N/A
661-578 Level 3 Communications Bakersfield 1/24/2006
661-579 Onvoy Lancaster 5/28/2008
661-580 New Cingular Wireless PCS Palmdale 9/2/2021
661-581 Teleport Communications America Palmdale 11/12/2021
661-582 New Cingular Wireless PCS Lancaster 10/21/2015
661-583 New Cingular Wireless PCS Palmdale 11/13/2015
661-584 Level 3 Communications Mojave N/A
661-585 New Cingular Wireless PCS Palmdale 12/4/2015
661-586 New Cingular Wireless PCS Delano N/A
661-587 Pacific Bell Bakersfield North N/A
661-588 Pacific Bell Bakersfield North N/A
661-589 Pacific Bell Bakersfield North N/A
661-590 U.S. Telepacific Corp. Wasco 6/29/2022
661-591 Level 3 Communications Glennville N/A
661-592 MetroPCS Networks Santa Clarita [Saugus-Canyon Country] 6/9/2015
661-593 T-Mobile USA Santa Clarita [Newhall-Castaic] 7/15/2016
661-594 T-Mobile USA Shafter 9/2/2022
661-595 U.S. Telepacific Corp. Bakersfield 5/26/2022
661-596 Nuso Bakersfield 10/10/2022
661-597 Cellco Partnership Mojave 10/10/2022
661-598 New Cingular Wireless PCS Palmdale 10/21/2022
661-599 Cellco Partnership Bakersfield South N/A
661-600-XXXX --- 661-699-XXXX
NPANXX Carrier1 Area Served2 Date3
661-600 Teleport Communications America Santa Clarita [Newhall-Castaic] N/A
661-601 Commio Bakersfield North 2/24/2022
661-602 Bandwidth.com Clec Bakersfield South 10/11/2022
661-603 Cellco Partnership Palmdale 02/10/2023
661-604 Cellco Partnership Lancaster 02/17/2023
661-605 Comcast IP Phone Bkfd Main 04/12/2023
661-606 T-Mobile USA Arvin N/A
661-607 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-608 Onvoy Spectrum Hi Vista 04/12/2023
661-609 New Cingular Wireless PCS Lancaster N/A
661-610 Teleport Communications America Bakersfield 7/20/2022
661-612 Dish Wireless Bakersfield 05/16/2023
661-613 Exiant Communications Edwards N/A
661-614 New Cingular Wireless PCS Tehachapi 08/28/2023
661-615 Level 3 Telecom Of California Bakersfield North N/A
661-616 Level 3 Telecom Of California Bakersfield N/A
661-617 Level 3 Telecom Of California Bakersfield South N/A
661-618 Cellco Partnership Palmdale N/A
661-619 Cellco Partnership Bakersfield N/A
661-620 North County Communication Corporation Santa Clarita [Saugus-Canyon Country] N/A
661-621 MetroPCS Networks Santa Clarita [Saugus-Canyon Country] N/A
661-622 Level 3 Telecom Of California Palmdale [Leon Valley] N/A
661-623 New Cingular Wireless PCS Taft N/A
661-624 Ip Horizon Bakersfield South 11/25/2020
661-625 T-Mobile USA Santa Clarita [Newhall-Castaic] 12/8/2021
661-627 T-Mobile USA Santa Clarita [Newhall-Castaic] 2/16/2021
661-629 Commio Bakersfield North 12/29/2023
661-630 Bright House Ntws Information Svcs (california) Ca Shafter N/A
661-631 Pacific Bell Bakersfield N/A
661-632 Pacific Bell Bakersfield N/A
661-633 Pacific Bell Bakersfield N/A
661-634 Pacific Bell Bakersfield N/A
661-635 Pacific Bell Bakersfield N/A
661-636 Pacific Bell Bakersfield N/A
661-637 Pacific Bell Bakersfield N/A
661-638 Pacific Bell Bakersfield N/A
661-639 Ton80 Communications Lake Hughes 2/18/2022
661-640 HD Carrier Bakersfield North 07/01/2024
661-641 Skye Telecom Edwards N/A
661-642 Teleport Communications America Delano 12/15/2023
661-643 Cellco Partnership Lancaster 07/03/2024
661-644 New Cingular Wireless PCS Santa Clarita [Newhall-Castaic] N/A
661-645 New Cingular Wireless PCS Santa Clarita [Newhall-Castaic] N/A
661-646 Onvoy Lancaster 07/05/2024
661-647 Onvoy Bakersfield South 07/05/2024
661-648 Cellco Partnership Palmdale 07/23/2024
661-649 U.S. Telepacific Corp. Arvin 7/13/2022
661-651 Onvoy Santa Clarita [Newhall-Castaic] 11/23/2022
661-652 T-Mobile USA Santa Clarita [Newhall-Castaic] 09/12/2024
661-653 T-Mobile USA Delano 4/25/2022
661-654 Pacific Bell Bakersfield South N/A
661-655 Fractel Arvin 7/23/2020
661-656 New Cingular Wireless PCS Palmdale 09/20/2024
661-658 Leap Telecom Bakersfield 09/23/2024
661-659 Dish Wireless Bakersfield 03/04/2025
661-660 Onvoy Spectrum Santa Clarita [Saugus-Canyon Country] 2/3/2021
661-662 Commio Bakersfield 3/24/2017
661-663 Pacific Bell Bakersfield South N/A
661-664 Pacific Bell Bakersfield South N/A
661-665 Pacific Bell Bakersfield South N/A
661-666 Onvoy Santa Clarita [Newhall-Castaic] N/A
661-667 MetroPCS Mcfarland N/A
661-668 Level 3 Telecom Of California Earlimart N/A
661-669 Bandwidth.com Clec Big Butte 7/2/2019
661-670 MetroPCS Networks Santa Clarita [Newhall-Castaic] N/A
661-671 Cellco Partnership Bakersfield South 03/11/2025
661-672 T-Mobile USA Arvin 03/21/2025
661-673 Ip Horizon Santa Clarita [Saugus-Canyon Country] N/A
661-674 T-Mobile USA Lancaster N/A
661-675 T-Mobile USA Palmdale N/A
661-676 Cellco Partnership Lancaster 03/21/2025
661-677 Fractel Bakersfield North 12/30/2019
661-678 AT&T Santa Clarita [Newhall-Castaic] N/A
661-679 Teleport Communications America Bakersfield North 8/21/2002
661-680 Onvoy Spectrum Bakersfield North 04/14/2025
661-681 Nuso Bakersfield North 04/21/2025
661-682 Wavenation Bakersfield 07/30/2025
661-683 Onvoy Lancaster 09/03/2025
661-684 Cellco Partnership Bakersfield South 09/12/2025
661-687 U.S. Telepacific Corp. Bakersfield South 5/26/2022
661-688 Fractel Bakersfield 12/23/2019
661-689 Level 3 Communications California Hot Springs N/A
661-690 T-Mobile USA Delano 4/12/2019
661-691 Wide Voice Bakersfield 10/30/2025
661-694 Nuso Bakersfield North 02/24/2023
661-695 MCIMetro Access Transmission Services Bakersfield North 10/15/2002
661-699 Cellco Partnership Bakersfield South 9/23/2002
661-701-XXXX --- 661-799-XXXX
NPANXX Carrier1 Area Served2 Date3
661-701 New Cingular Wireless PCS Palmdale 03/10/2023
661-702 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-703 New Cingular Wireless PCS Bakersfield N/A
661-704 Level 3 Communications Mckittrick N/A
661-705 U.S. Telepacific Corp. Santa Clarita [Newhall-Castaic] 8/9/2002
661-706 New Cingular Wireless PCS Bakersfield N/A
661-709 T-Mobile USA Delano 10/10/2001
661-713 Cellco Partnership Santa Clarita [Newhall-Castaic] N/A
661-714 Cellco Partnership Santa Clarita [Newhall-Castaic] N/A
661-716 U.S. Telepacific Corp. Bakersfield 3/1/2001
661-717 MetroPCS Bakersfield 9/28/2001
661-718 Frontier California Lancaster N/A
661-719 New Cingular Wireless PCS Palmdale 05/03/2023
661-720 Pacific Bell Delano N/A
661-721 Pacific Bell Delano N/A
661-722 Frontier California Lancaster N/A
661-723 Frontier California Lancaster N/A
661-724 Frontier California Lake Hughes N/A
661-725 Pacific Bell Delano N/A
661-726 Frontier California Lancaster N/A
661-727 Frontier California Hi Vista N/A
661-728 Frontier California Lancaster N/A
661-729 Frontier California Lancaster N/A
661-730 Onvoy Spectrum Palmdale 04/12/2023
661-731 Level 3 Communications Earlimart N/A
661-732 Fractel Delano 7/23/2020
661-733 Cellco Partnership Palmdale N/A
661-735 T-Mobile USA Bakersfield South 3/12/2002
661-736 T-Mobile USA Arvin 09/17/2024
661-741 Vonage America Bakersfield 3/14/2018
661-742 AT&T Enterprises Bakersfield 4/6/2005
661-743 New Cingular Wireless PCS Lancaster 06/22/2023
661-744 Fractel Palmdale 9/21/2020
661-745 Bright House Ntws Information Svcs (california) Ca Taft N/A
661-746 Pacific Bell Shafter N/A
661-747 Cellco Partnership Bakersfield N/A
661-748 Onvoy Bakersfield 5/29/2008
661-749 Level 3 Communications Mojave N/A
661-750 T-Mobile USA Tehachapi 11/13/2001
661-751 Onvoy Bkfd South 06/27/2023
661-752 Level 3 Communications Rosamond N/A
661-753 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-754 New Cingular Wireless PCS Mojave N/A
661-755 New Cingular Wireless PCS Santa Clarita [Newhall-Castaic] N/A
661-758 Pacific Bell Wasco N/A
661-759 MetroPCS Wasco N/A
661-760 Onvoy Buttonwillow N/A
661-761 Onvoy Mckittrick N/A
661-762 Frontier California Mckittrick N/A
661-763 Frontier California Taft N/A
661-764 Frontier California Buttonwillow N/A
661-765 Frontier California Taft N/A
661-766 Frontier California Cuyama N/A
661-768 Frontier California Taft N/A
661-769 Frontier California Taft N/A
661-770 T-Mobile USA Taft N/A
661-771 Level 3 Telecom Of California Tehachapi N/A
661-772 Level 3 Telecom Of California Wasco N/A
661-773 AT&T Enterprises Walkerbsin N/A
661-774 33 Wireless Palmdale N/A
661-775 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-776 Level 3 Telecom Of California Shafter N/A
661-777 Level 3 Telecom Of California Lebec N/A
661-778 Level 3 Telecom Of California Delano N/A
661-779 Level 3 Telecom Of California Arvin N/A
661-780 Onvoy Palmdale [Leon Valley] 3/12/2001
661-784 New Cingular Wireless PCS Palmdale 07/25/2023
661-786 Fractel Santa Clarita [Saugus-Canyon Country] 5/13/2019
661-788 Fractel Bakersfield South 6/3/2020
661-789 Pacific Bell Palmdale N/A
661-791 Utility Telecom Group Palmdale N/A
661-792 Frontier California Mcfarland N/A
661-793 Onvoy Palmdale [Leon Valley] N/A
661-794 T-Mobile USA Palmdale 2/22/2006
661-795 Cellco Partnership Palmdale 08/17/2023
661-797 Frontier California Lost Hills N/A
661-799 Pacific Bell Santa Clarita [Newhall-Castaic] N/A
661-800-XXXX --- 661-899-XXXX
NPANXX Carrier1 Area Served2 Date3
661-800 Cellco Partnership Bakersfield N/A
661-802 Teleport Communications America Lancaster N/A
661-803 New Cingular Wireless PCS Santa Clarita [Newhall-Castaic] 4/18/2001
661-805 Cellco Partnership Bakersfield South N/A
661-808 Pacific Bell Bakersfield N/A
661-809 Cellco Partnership Bakersfield South N/A
661-810 MetroPCS Networks Palmdale N/A
661-812 Cellco Partnership Santa Clarita [Newhall-Castaic] 01/17/2024
661-816 T-Mobile USA Palmdale N/A
661-817 Pacific Bell Bakersfield N/A
661-820 Cellco Partnership Bakersfield 01/17/2024
661-821 Pacific Bell Tehachapi N/A
661-822 Pacific Bell Tehachapi N/A
661-823 Pacific Bell Tehachapi N/A
661-824 Pacific Bell Mojave N/A
661-825 T-Mobile USA Tehachapi N/A
661-827 Pacific Bell Bakersfield South N/A
661-829 Pacific Bell Bakersfield North 3/12/2002
661-831 Pacific Bell Bakersfield South N/A
661-832 Pacific Bell Bakersfield South N/A
661-833 Pacific Bell Bakersfield South N/A
661-834 Pacific Bell Bakersfield South N/A
661-835 Pacific Bell Bakersfield South N/A
661-836 Pacific Bell Bakersfield South N/A
661-837 Pacific Bell Bakersfield South N/A
661-839 Teleport Communications America Palmdale N/A
661-840 Onvoy Spectrum Bakersfield N/A
661-843 Onvoy Bakersfield N/A
661-844 Fractel Palmdale 6/1/2020
661-845 Pacific Bell Bakersfield South N/A
661-846 Onvoy Bakersfield N/A
661-847 U.S. Telepacific Corp. Bakersfield South 3/1/2001
661-849 Pacific Bell Earlimart N/A
661-851 Level 3 Communications Earlimart N/A
661-852 Pacific Bell Bakersfield N/A
661-854 Pacific Bell Arvin N/A
661-855 Pacific Bell Arvin N/A
661-857 MetroPCS Networks Santa Clarita [Newhall-Castaic] N/A
661-858 Pacific Bell Bakersfield South N/A
661-859 Pacific Bell Bakersfield N/A
661-860 Cellco Partnership Palmdale 8/30/2002
661-861 Pacific Bell Bakersfield N/A
661-862 Pacific Bell Bakersfield N/A
661-863 Pacific Bell Bakersfield N/A
661-864 Pacific Bell Bakersfield N/A
661-865 Utility Telecom Group Bakersfield 5/19/2006
661-866 Fractel Bakersfield 9/21/2020
661-867 Pacific Bell Walkerbsin N/A
661-868 Pacific Bell Bakersfield N/A
661-869 Pacific Bell Bakersfield N/A
661-871 Pacific Bell Bakersfield N/A
661-872 Pacific Bell Bakersfield N/A
661-873 Pacific Bell Bakersfield N/A
661-874 T-Mobile USA Lancaster N/A
661-877 T-Mobile USA Santa Clarita [Newhall-Castaic] N/A
661-878 New Cingular Wireless PCS Palmdale N/A
661-884 Onvoy Wasco 10/4/2019
661-885 Onvoy Bakersfield South N/A
661-886 New Cingular Wireless PCS Lancaster 2/7/2001
661-887 Onvoy Palmdale 6/7/2021
661-888 Bandwidth.com Clec Santa Clarita [Newhall-Castaic] N/A
661-889 AT&T Bakersfield N/A
661-899 Fractel Lancaster 5/13/2019
661-900-XXXX --- 661-999-XXXX
NPANXX Carrier1 Area Served2 Date3
661-900 MetroPCS Bakersfield N/A
661-902 Cellco Partnership Lancaster N/A
661-903 New Cingular Wireless PCS Arvin N/A
661-904 Cellco Partnership Santa Clarita [Newhall-Castaic] N/A
661-910 New Cingular Wireless PCS Shafter N/A
661-912 Teleport Communications America Bakersfield N/A
661-916 New Cingular Wireless PCS Lancaster N/A
661-917 New Cingular Wireless PCS Lancaster N/A
661-918 33 Wireless Palmdale N/A
661-922 Fractel Delano 1/21/2021
661-927 Level 3 Telecom Of California Mcfarland N/A
661-928 Onvoy Bakersfield South 03/14/2024
661-932 Cellco Partnership Bakersfield N/A
661-933 Fractel Bakersfield North 7/13/2021
661-934 Ton80 Communications Arvin 4/8/2021
661-936 T-Mobile USA Palmdale 11/15/2021
661-940 Frontier California Lancaster N/A
661-941 Time Warner Cbl Info Svcs (ca) Lancaster 3/12/2013
661-942 Frontier California Lancaster N/A
661-943 Frontier California Lancaster N/A
661-944 Pacific Bell Palmdale N/A
661-945 Frontier California Lancaster N/A
661-946 Frontier California Lancaster N/A
661-947 Pacific Bell Palmdale N/A
661-948 Frontier California Lancaster N/A
661-949 Frontier California Lancaster N/A
661-951 Frontier California Lancaster N/A
661-952 Level 3 Communications Lancaster N/A
661-955 Fractel Arvin 11/9/2020
661-964 U.S. Telepacific Corp. Santa Clarita [Newhall-Castaic] N/A
661-965 New Cingular Wireless PCS Palmdale N/A
661-966 American Messaging Services Palmdale N/A
661-970 New Cingular Wireless PCS Palmdale 02/20/2024
661-972 New Cingular Wireless PCS Tehachapi N/A
661-974 Pacific Bell (competitive) Lancaster N/A
661-977 Level 3 Communications Santa Clarita [Saugus-Canyon Country] N/A
661-978 MetroPCS Bakersfield N/A
661-979 MetroPCS Bakersfield N/A
661-990 Onvoy Spectrum Palmdale 01/04/2024
661-992 New Cingular Wireless PCS Palmdale N/A
661-993 New Cingular Wireless PCS Santa Clarita [Newhall-Castaic] N/A
661-994 New Cingular Wireless PCS Palmdale 05/09/2024
661-995 Onvoy Bakersfield 04/18/2024
661-996 T-Mobile USA Bakersfield 01/23/2024
661-997 New Cingular Wireless PCS Mc Farland 12/05/2023
661-998 Teleport Communications America Palmdale 5/1/2001
661-999 Onvoy Edwards N/A
  1. NPA-NXX assigned carrier; with Number Pooling thousand block numbers are often assigned to other carriers as well; moreover, phone numbers can be ported between service providers
  2. 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.
  3. Assignment date. N/A - mostly central office codes assigned before 2001.
  4. NXX prefixes last updated: November 22, 2025

Cities in area code 661

City1 County Time Zone1
Acton Los Angeles P
Arvin Kern P
Bakersfield Kern P
Buttonwillow Kern P
Caliente Kern P
California Hot Springs Tulare P
Canyon Country Los Angeles P
Castaic Los Angeles P
Delano Kern P
Earlimart Tulare P
Edison Kern P
Edwards Kern P
Fellows Kern P
Frazier Park Kern P
Glennville Kern P
Keene Kern P
Lake Hughes Los Angeles P
Lamont Kern P
Lancaster Los Angeles P
Lebec Kern P
Littlerock Los Angeles P
Llano Los Angeles P
Lost Hills Kern P
Maricopa Kern P
Mc Farland Kern P
Mc Kittrick Kern P
Mojave Kern P
New Cuyama Santa Barbara P
Newhall Los Angeles P
Palmdale Los Angeles P
Pearblossom Los Angeles P
Posey Tulare P
Quartz Hill Los Angeles P
Richgrove Tulare P
Rosamond Kern P
Santa Clarita Los Angeles P
Shafter Kern P
Stevenson Ranch Los Angeles P
Taft Kern P
Tehachapi Kern P
Tupman Kern P
Valencia Los Angeles P
Valyermo Los Angeles P
Wasco Kern P
Woody Kern P
  1. Listed above are most places served by USA area code 661. 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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