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

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Area code 520 is in Arizona, USA , spanning 5 counties and serving 64 cities , including Tucson, Casas Adobes or Casa Grande; it currently uses 691 prefixes , assigned from 520-200-XXXX through 520-999-XXXX.

In service date for area code 520: March 19, 1995.

The current local time is .

520 area code location on a map
© OpenStreetMap contributorsFor exact NPA boundaries see official 520 area code map

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More Arizona area codes:

  • 480
  • 602
  • 623
  • 928

Locate any 520-NXX prefix:

520-200-XXXX --- 520-299-XXXX
NPANXX Carrier1 Area Served2 Date3
520-200 Electric Lightwave Hayden 10/24/2002
520-201 Electric Lightwave San Manuel 10/24/2002
520-202 Level 3 Telecom Of Arizona Tucson N/A
520-203 MCIMetro Access Transmission Services Tucson 8/13/2003
520-204 Paetec Itel Tucson 12/4/2003
520-205 Qwest Corporation Tucson N/A
520-206 Qwest Corporation Tucson N/A
520-207 Comcast IP Phone Tucson N/A
520-208 Level 3 Communications Casa Grande 1/8/2001
520-209 Qwest Corporation Tucson N/A
520-210 Onvoy Tombstone 8/20/2013
520-212 Midvale Telephone Exchange Cascabel N/A
520-213 T-Mobile USA Casa Grande 6/25/2013
520-214 Onvoy Tucson 11/19/2015
520-215 Gila River Telecomm Blackwater N/A
520-216 Cellco Partnership Nogales N/A
520-217 Qwest Corporation Casa Grande 12/29/2015
520-218 Qwest Corporation Tucson N/A
520-219 Qwest Corporation Tucson N/A
520-220 T-Mobile USA Sierra Vista 5/31/2002
520-221 Cellco Partnership Benson 4/8/2003
520-222 Qwest Corporation Tucson 10/6/2011
520-223 Level 3 Communications Nogales 4/9/2002
520-224 Electric Lightwave Sierra Vista N/A
520-225 Qwest Corporation Tucson N/A
520-226 Level 3 Communications Sierra Vista 4/9/2002
520-227 T-Mobile USA Sierra Vista 5/16/2002
520-228 Qwest Corporation Tucson N/A
520-229 Qwest Corporation Tucson N/A
520-230 Cellco Partnership Tucson N/A
520-231 Bandwidth.com Clec Whitlow N/A
520-232 Qwest Corporation Tucson N/A
520-233 Onvoy Casa Grande 7/23/2002
520-234 AT&T Sierra Vista 11/6/2002
520-235 Cellco Partnership Tucson N/A
520-236 MetroPCS Sierra Vista 9/17/2002
520-237 Cellco Partnership Tucson N/A
520-238 T-Mobile USA Yuma N/A
520-239 Teleport Communications America Tucson N/A
520-240 Cellco Partnership Tucson N/A
520-241 New Cingular Wireless PCS Tucson N/A
520-242 Cellco Partnership Willcox 10/28/2021
520-243 Qwest Corporation Tucson N/A
520-244 T-Mobile USA Tucson 3/14/2016
520-245 T-Mobile USA Tucson N/A
520-246 Level 3 Communications Tucson 10/30/2020
520-247 New Cingular Wireless PCS Tucson 1/18/2001
520-248 T-Mobile USA Tucson N/A
520-249 T-Mobile USA Sierra Vista N/A
520-250 T-Mobile USA Tucson N/A
520-251 T-Mobile USA Casa Grande N/A
520-252 T-Mobile USA Casa Grande N/A
520-253 Cellco Partnership Willcox 4/8/2003
520-254 Level 3 Communications Willcox 4/2/2004
520-255 Cellco Partnership Sierra Vista 4/28/2004
520-256 T-Mobile USA Tucson 1/29/2001
520-257 T-Mobile USA Tucson 8/19/2014
520-258 Qwest Corporation Tucson N/A
520-259 North County Communications Corporation Tucson N/A
520-260 Cellco Partnership Tucson N/A
520-261 Bandwidth.com Clec Tucson 7/16/2009
520-262 Cellco Partnership Tucson 2/17/2010
520-263 Comcast IP Phone Sierra Vista 8/15/2014
520-264 Cellco Partnership Nogales 2/13/2001
520-265 T-Mobile USA Benson 8/9/2002
520-266 T-Mobile USA Sierra Vista 8/9/2002
520-267 North County Communications Corporation Sierra Vista N/A
520-268 Cellco Partnership Tucson 3/14/2013
520-269 Cellco Partnership Tucson 2/5/2007
520-270 T-Mobile USA Tucson N/A
520-271 T-Mobile USA Tucson N/A
520-272 New Cingular Wireless PCS Tucson N/A
520-273 New Cingular Wireless PCS Tucson 8/19/2014
520-274 T-Mobile USA Tucson 9/14/2016
520-275 New Cingular Wireless PCS Tucson N/A
520-276 Bandwidth.com Clec Tucson 10/30/2014
520-277 Onvoy Whitlow 5/8/2012
520-278 MetroPCS Tucson 8/28/2014
520-279 Cellco Partnership Tucson 2/18/2014
520-280 T-Mobile USA Casa Grande N/A
520-281 Qwest Corporation Nogales N/A
520-282 Cellco Partnership Tucson N/A
520-283 T-Mobile USA Tucson 9/23/2014
520-284 MCIMetro Access Transmission Services Tucson 3/17/2009
520-285 Qwest Corporation Nogales N/A
520-286 T-Mobile USA Tucson 1/11/2013
520-287 Qwest Corporation Nogales N/A
520-288 New Cingular Wireless PCS Tucson 4/21/2011
520-289 Cellco Partnership Tucson 6/28/2006
520-290 Qwest Corporation Tucson N/A
520-291 Qwest Corporation Tucson N/A
520-292 Qwest Corporation Tucson N/A
520-293 Qwest Corporation Tucson N/A
520-294 Qwest Corporation Tucson N/A
520-295 Qwest Corporation Tucson N/A
520-296 Qwest Corporation Tucson N/A
520-297 Qwest Corporation Tucson N/A
520-298 Qwest Corporation Tucson N/A
520-299 Qwest Corporation Tucson N/A
520-300-XXXX --- 520-399-XXXX
NPANXX Carrier1 Area Served2 Date3
520-300 Cellco Partnership Tucson 3/22/2007
520-301 New Cingular Wireless PCS Tucson 5/3/2007
520-302 New Cingular Wireless PCS Tucson 2/12/2007
520-303 Onvoy Tucson 1/2/2008
520-304 New Cingular Wireless PCS Tucson N/A
520-305 Cellco Partnership Tucson 10/9/2007
520-306 Cellco Partnership Tucson 3/12/2009
520-307 Cellco Partnership Tucson N/A
520-308 New Cingular Wireless PCS Tucson 9/9/2009
520-309 New Cingular Wireless PCS Tucson 9/30/2005
520-310 Cellco Partnership Tucson 9/9/2009
520-312 New Cingular Wireless PCS Tucson N/A
520-313 T-Mobile USA Nogales 5/15/2001
520-314 Level 3 Communications Tucson 2/9/2011
520-315 Gila River Telecomm Casa Blanca N/A
520-316 Qwest Corporation Casa Grande N/A
520-317 Onvoy Hayden 7/13/2016
520-318 Qwest Corporation Tucson N/A
520-319 Qwest Corporation Tucson N/A
520-320 Qwest Corporation Tucson N/A
520-321 Qwest Corporation Tucson N/A
520-322 Qwest Corporation Tucson N/A
520-323 Qwest Corporation Tucson N/A
520-324 Qwest Corporation Tucson N/A
520-325 Qwest Corporation Tucson N/A
520-326 Qwest Corporation Tucson N/A
520-327 Qwest Corporation Tucson N/A
520-328 Qwest Corporation Tucson 5/14/2014
520-329 Teleport Communications America Tucson 6/28/2010
520-330 Cellco Partnership Tucson 7/6/2016
520-331 T-Mobile USA Tucson N/A
520-332 T-Mobile USA Tucson 5/17/2012
520-333 MCIMetro Access Transmission Services Tucson 12/17/2010
520-334 Cellco Partnership Tucson 10/2/2008
520-335 Comcast IP Phone Sierra Vista 2/12/2009
520-336 New Cingular Wireless PCS Tucson 2/13/2009
520-337 Level 3 Communications Willcox 5/5/2008
520-338 Onvoy Tucson 10/7/2011
520-339 New Cingular Wireless PCS Tucson 9/12/2008
520-340 Cellco Partnership Casa Grande 9/1/2016
520-341 Telnyx Nogales 12/9/2016
520-342 Onvoy Tucson 3/8/2007
520-343 Cellco Partnership Tucson 5/23/2007
520-344 New Cingular Wireless PCS Tucson 4/24/2007
520-345 Cellco Partnership Tucson 1/11/2013
520-346 Peerless Network Of Arizona Bisbee 9/21/2018
520-347 Telnyx Tucson N/A
520-348 Centurylink Communications Willcox 6/22/2015
520-349 Cellco Partnership Tucson N/A
520-350 Gila Local Exchange Carrier Casa Grande 5/14/2008
520-351 Level 3 Telecom Of Arizona Tucson 10/11/2005
520-352 Electric Lightwave Tucson N/A
520-353 Onvoy Bisbee 5/8/2012
520-354 Cellco Partnership Tucson 10/27/2016
520-355 Bandwidth.com Clec Tucson 9/7/2012
520-356 Qwest Corporation Hayden N/A
520-357 Qwest Corporation Hayden N/A
520-358 New Cingular Wireless PCS Tucson 3/6/2001
520-359 MetroPCS Tucson 6/24/2014
520-360 New Cingular Wireless PCS Tucson N/A
520-361 Tohono O'odham Utility Authority Santa Rosa N/A
520-362 Tohono O'odham Utility Authority West San Simon N/A
520-363 Qwest Corporation Hayden N/A
520-364 Qwest Corporation Douglas N/A
520-365 T-Mobile USA Tucson 4/24/2012
520-366 Qwest Corporation Bisbee N/A
520-367 Onvoy Spectrum Tucson 7/13/2017
520-368 Qwest Corporation Douglas 11/7/2007
520-369 Level 3 Communications Tucson 9/28/2011
520-370 T-Mobile USA Tucson N/A
520-371 MetroPCS Casa Grande N/A
520-372 Comcast IP Phone Tucson 8/5/2019
520-373 T-Mobile USA Tucson 10/31/2012
520-374 Qwest Corporation Casa Grande N/A
520-375 Qwest Corporation Nogales N/A
520-376 MetroPCS Sierra Vista 2/19/2019
520-377 Qwest Corporation Nogales N/A
520-378 Qwest Corporation Sierra Vista N/A
520-379 Onvoy Douglas N/A
520-380 T-Mobile USA Casa Grande 8/23/2019
520-381 Electric Lightwave Casa Grande N/A
520-382 Level 3 Telecom Of Arizona Tucson N/A
520-383 Tohono O'odham Utility Authority Sells N/A
520-384 Qwest Corporation Willcox N/A
520-385 Qwest Corporation San Manuel N/A
520-386 New Cingular Wireless PCS Benson 12/11/2019
520-387 Table Top Telephone Company Ajo N/A
520-388 Qwest Corporation Tucson N/A
520-389 New Cingular Wireless PCS Tucson 10/9/2014
520-390 T-Mobile USA Tucson N/A
520-391 Electric Lightwave Superior N/A
520-392 New Cingular Wireless PCS Tucson 12/29/2009
520-393 Qwest Corporation Tucson N/A
520-394 Qwest Corporation Nogales N/A
520-395 Comcast IP Phone Tucson 5/21/2007
520-396 Cellco Partnership Tucson 8/24/2006
520-397 Qwest Corporation Nogales N/A
520-398 Qwest Corporation Tucson N/A
520-399 Qwest Corporation Tucson N/A
520-400-XXXX --- 520-499-XXXX
NPANXX Carrier1 Area Served2 Date3
520-400 Cellco Partnership Tucson N/A
520-401 T-Mobile USA Tucson N/A
520-402 T-Mobile USA Benson 9/14/2016
520-403 Cellco Partnership Tucson N/A
520-404 Cellco Partnership Tucson N/A
520-405 Cellco Partnership Tucson N/A
520-406 New Cingular Wireless PCS Tucson 4/16/2001
520-407 Qwest Corporation Tucson N/A
520-408 Qwest Corporation Tucson N/A
520-409 New Cingular Wireless PCS Tucson N/A
520-410 Qwest Corporation Tucson N/A
520-412 Peerless Network Of Arizona Tombstone 10/29/2018
520-413 Level 3 Communications Casa Grande 4/16/2001
520-414 Level 3 Communications Casa Grande 4/16/2001
520-415 MCC Telephony Nogales 3/5/2012
520-416 Exiant Communications Tucson 9/16/2019
520-417 Qwest Corporation Sierra Vista N/A
520-418 Gila River Telecomm Stotonic N/A
520-419 Cellco Partnership Tucson N/A
520-420 HD Carrier Tucson 12/18/2019
520-421 Qwest Corporation Casa Grande N/A
520-422 AT&T Bisbee 8/13/2012
520-423 Qwest Corporation Casa Grande N/A
520-424 Qwest Corporation Casa Grande N/A
520-425 Cellco Partnership Tucson 11/3/2006
520-426 Qwest Corporation Casa Grande N/A
520-427 T-Mobile USA Tucson 1/11/2013
520-428 New Cingular Wireless PCS Tucson 1/17/2014
520-429 Cellco Partnership Tucson N/A
520-430 Gila River Telecomm Maricopa Village N/A
520-431 New Cingular Wireless PCS Casa Grande N/A
520-432 Qwest Corporation Bisbee N/A
520-433 Level 3 Communications Tucson 11/20/2012
520-434 Qwest Corporation Tucson N/A
520-435 T-Mobile USA Willcox 05/31/2023
520-436 Onvoy Hayden 10/3/2019
520-437 Xo Arizona Tucson 3/30/2006
520-438 Onvoy Whitlow 10/3/2019
520-439 Qwest Corporation Sierra Vista N/A
520-440 T-Mobile USA Tucson N/A
520-441 New Cingular Wireless PCS Tucson 4/20/2010
520-442 Bandwidth.com Clec Benson 9/24/2012
520-443 T-Mobile USA Tucson 6/6/2007
520-444 Cellco Partnership Tucson N/A
520-445 New Cingular Wireless PCS Tucson N/A
520-446 USA Mobility Wireless Tucson N/A
520-447 Onvoy Tucson 2/28/2014
520-448 Peerless Network Of Arizona Tucson 4/30/2014
520-449 Cellco Partnership Tucson N/A
520-450 T-Mobile USA Casa Grande N/A
520-451 Cellco Partnership Tucson 10/28/2021
520-452 Qwest Corporation Sierra Vista N/A
520-453 Cellco Partnership Tombstone 4/20/2020
520-454 Qwest Corporation Sierra Vista 2/13/2009
520-455 Qwest Corporation Nogales N/A
520-456 Qwest Corporation Sierra Vista N/A
520-457 Qwest Corporation Tombstone N/A
520-458 Qwest Corporation Sierra Vista N/A
520-459 Qwest Corporation Sierra Vista N/A
520-460 T-Mobile USA Tucson 9/17/2012
520-461 Electric Lightwave Tucson N/A
520-462 Onvoy Tucson 8/17/2017
520-463 Qwest Corporation Whitlow N/A
520-464 Qwest Corporation Casa Grande N/A
520-465 New Cingular Wireless PCS Tucson N/A
520-466 Qwest Corporation Casa Grande N/A
520-467 Onvoy Tucson 12/19/2019
520-468 Onvoy Tucson 5/21/2008
520-469 Qwest Corporation Tucson N/A
520-470 T-Mobile USA Nogales N/A
520-471 Cellco Partnership Tucson N/A
520-472 Qwest Corporation Casa Grande 8/26/2019
520-473 T-Mobile USA Sierra Vista 11/23/2020
520-474 T-Mobile USA Tucson 11/16/2012
520-475 Csc Wireless Tucson 6/5/2020
520-476 Nuso Tucson 9/1/2020
520-477 MCIMetro Access Transmission Services Tucson 1/12/2011
520-478 Teleport Communications America Ajo 10/27/2020
520-479 Commnet Wireless Tucson 5/11/2020
520-481 T-Mobile USA Tucson N/A
520-482 New Cingular Wireless PCS Tucson 7/1/2021
520-483 Cellco Partnership Casa Grande N/A
520-484 Nuso Tucson 10/22/2012
520-485 Bandwidth.com Clec Tucson 5/13/2015
520-486 New Cingular Wireless PCS Tucson 9/16/2020
520-487 Qwest Corporation San Manuel N/A
520-488 Cellco Partnership Tucson N/A
520-489 Qwest Corporation Tucson N/A
520-490 Cellco Partnership Tucson N/A
520-491 T-Mobile USA Flagstaff N/A
520-492 Comcast IP Phone Tucson 10/6/2020
520-493 Firstdigital Telecom Tucson 4/18/2019
520-494 Qwest Corporation Casa Grande N/A
520-495 Level 3 Telecom Of Arizona Tucson N/A
520-496 Cellco Partnership Tucson 10/7/2020
520-497 Bandwidth.com Clec Tucson 10/7/2020
520-498 Qwest Corporation Tucson N/A
520-499 T-Mobile USA Tucson 4/19/2013
520-500-XXXX --- 520-599-XXXX
NPANXX Carrier1 Area Served2 Date3
520-500 Onvoy Tucson 2/26/2015
520-501 Twilio International Tucson 10/22/2020
520-502 Onvoy Sasabe 6/2/2020
520-503 Onvoy Willcox 12/22/2020
520-504 T-Mobile USA Sierra Vista 4/2/2021
520-505 Electric Lightwave Tucson 7/20/2009
520-506 Onvoy Tombstone 12/23/2020
520-507 Cellco Partnership Willcox N/A
520-508 Cellco Partnership Sierra Vista N/A
520-509 Level 3 Communications Casa Grande 5/15/2001
520-510 New Cingular Wireless PCS Casa Grande N/A
520-512 Qwest Corporation Tucson N/A
520-513 Qwest Corporation Tucson N/A
520-514 Qwest Corporation Tucson N/A
520-515 Qwest Corporation Sierra Vista N/A
520-516 Qwest Corporation Tucson N/A
520-517 Cellco Partnership Sacaton 4/12/2021
520-518 New Cingular Wireless PCS Casa Grande N/A
520-519 Qwest Corporation Tucson N/A
520-520 Onvoy Nogales 9/26/2022
520-521 HD Carrier San Manuel 10/26/2020
520-522 Fractel Casa Blanca 6/2/2020
520-523 Onvoy Sierra Vista 5/7/2020
520-524 Onvoy Tucson 12/21/2020
520-525 Onvoy Bisbee 5/7/2020
520-526 Commio Tucson 4/28/2017
520-527 Onvoy Benson 12/22/2020
520-528 Cellco Partnership Tucson 1/19/2015
520-529 Qwest Corporation Tucson N/A
520-530 Onvoy Tucson 10/2/2020
520-531 Qwest Corporation Tucson N/A
520-532 Onvoy Casa Grande 12/23/2020
520-533 Qwest Corporation Sierra Vista N/A
520-534 T-Mobile USA Tucson 1/11/2021
520-535 T-Mobile USA Tucson 12/8/2020
520-536 Onvoy Douglas 12/22/2020
520-537 Ip Horizon Tucson 3/4/2021
520-538 Qwest Corporation Sierra Vista N/A
520-539 Cellco Partnership Tucson 4/9/2014
520-540 Bandwidth.com Clec Tucson N/A
520-541 Cellco Partnership Willcox 7/7/2021
520-542 Level 3 Communications Tucson 8/4/2021
520-543 T-Mobile USA Tucson 5/14/2021
520-544 Qwest Corporation Tucson N/A
520-545 Level 3 Telecom Of Arizona Tucson N/A
520-546 Qwest Corporation Tucson N/A
520-547 Level 3 Telecom Of Arizona Tucson N/A
520-548 New Cingular Wireless PCS Tucson 7/19/2001
520-549 Cellco Partnership Tucson N/A
520-550 Gila River Telecomm Komatke N/A
520-551 New Cingular Wireless PCS Tucson 11/19/2001
520-552 Onvoy Bisbee 2/28/2021
520-553 T-Mobile USA Casa Grande 7/19/2021
520-554 New Cingular Wireless PCS Tucson 8/9/2021
520-556 T-Mobile USA Sierra Vista 8/24/2021
520-557 Commio Tucson N/A
520-558 Valley Tel Coop Inc Portal N/A
520-559 Cellco Partnership Sierra Vista N/A
520-560 New Cingular Wireless PCS Casa Grande N/A
520-561 Cellco Partnership Tucson N/A
520-562 Gila River Telecomm Sacaton N/A
520-563 Ip Horizon Benson 9/3/2021
520-564 Ip Horizon Douglas 9/3/2021
520-565 New Cingular Wireless PCS Tucson 8/9/2021
520-566 Qwest Corporation Tucson N/A
520-567 Ip Horizon Hayden 9/3/2021
520-568 Qwest Corporation Casa Grande N/A
520-569 Ip Horizon San Manuel 9/3/2021
520-570 Qwest Corporation Tucson N/A
520-571 Qwest Corporation Tucson N/A
520-572 Qwest Corporation Tucson N/A
520-573 Qwest Corporation Tucson N/A
520-574 Qwest Corporation Tucson N/A
520-575 Qwest Corporation Tucson N/A
520-576 Qwest Corporation Tucson N/A
520-577 Qwest Corporation Tucson N/A
520-578 Qwest Corporation Tucson N/A
520-579 Qwest Corporation Tucson N/A
520-580 Onvoy Spectrum Superior 6/28/2021
520-581 Ip Horizon Tombstone 9/3/2021
520-582 Level 3 Telecom Of Arizona Casa Grande N/A
520-583 Ip Horizon Whitlow 9/3/2021
520-584 Qwest Corporation Tucson N/A
520-585 MetroPCS Tucson 3/9/2016
520-586 Qwest Corporation Benson N/A
520-587 New Cingular Wireless PCS Portal 9/24/2021
520-588 Fractel Cascabel 9/24/2020
520-589 Level 3 Communications Tucson 7/29/2015
520-590 Cellco Partnership Bisbee 11/10/2021
520-591 Cellco Partnership Tucson N/A
520-592 Telnyx Nogales 10/4/2021
520-593 Onvoy Hayden 12/24/2020
520-594 Qwest Corporation Tucson N/A
520-595 Centurylink Communications Benson 6/5/2015
520-596 T-Mobile USA Tucson 10/26/2021
520-597 Onvoy Superior 3/22/2016
520-598 MetroPCS Casa Grande 10/11/2021
520-599 New Cingular Wireless PCS Tucson 12/15/2014
520-600-XXXX --- 520-699-XXXX
NPANXX Carrier1 Area Served2 Date3
520-600 Onvoy Tucson 10/10/2017
520-601 Cellco Partnership Sells 12/17/2021
520-602 Onvoy Spectrum Tucson 08/17/2023
520-603 Cellco Partnership Tucson N/A
520-604 Cellco Partnership Nogales N/A
520-605 Bandwidth.com Clec Tucson 10/25/2021
520-606 MetroPCS Tucson 2/5/2014
520-607 New Cingular Wireless PCS Casa Grande 12/17/2021
520-608 Onvoy San Manuel 1/25/2022
520-609 Cellco Partnership Tucson N/A
520-610 Cellco Partnership Sacaton N/A
520-612 Bandwidth.com Clec Tucson 5/22/2012
520-613 New Cingular Wireless PCS Tucson 1/7/2022
520-614 Onvoy Tucson 2/24/2022
520-615 Qwest Corporation Tucson N/A
520-616 Qwest Corporation Tucson N/A
520-617 Qwest Corporation Tucson N/A
520-618 Level 3 Telecom Of Arizona Tucson N/A
520-619 T-Mobile USA Nogales 5/15/2001
520-620 Qwest Corporation Tucson N/A
520-621 Qwest Corporation Tucson N/A
520-622 Qwest Corporation Tucson N/A
520-623 Qwest Corporation Tucson N/A
520-624 Qwest Corporation Tucson N/A
520-625 Qwest Corporation Tucson N/A
520-626 Qwest Corporation Tucson N/A
520-627 Cellco Partnership Tucson 1/18/2022
520-628 Qwest Corporation Tucson N/A
520-629 Qwest Corporation Tucson N/A
520-630 Onvoy Willcox 12/2/2021
520-631 T-Mobile USA Tucson N/A
520-632 Cellco Partnership Casa Grande 12/15/2021
520-633 Cellco Partnership Tucson 1/8/2022
520-634 T-Mobile USA Casa Grande 3/10/2022
520-635 T-Mobile USA Casa Grande 4/7/2015
520-636 Peerless Network Of Arizona San Manuel 9/30/2015
520-637 T-Mobile USA Casa Grande 12/23/2020
520-638 Qwest Corporation Tucson 4/28/2008
520-639 Centurylink Communications Tucson 4/17/2015
520-640 Level 3 Communications Tucson 4/15/2022
520-641 Ton80 Communications Benson 2/18/2022
520-642 Valley Tel Coop Inc Elfrida N/A
520-643 Cellco Partnership Willcox 3/28/2022
520-644 Fractel Komatke 9/24/2020
520-645 Cellco Partnership Douglas 9/30/2013
520-646 Ton80 Communications Nogales 2/18/2022
520-647 Qwest Corporation Tucson N/A
520-648 Qwest Corporation Tucson N/A
520-649 Cellco Partnership Tucson 8/10/2022
520-650 Onvoy Whitlow 10/29/2020
520-651 Cellco Partnership Tucson 7/14/2022
520-652 Qwest Corporation Whitlow 3/1/2022
520-653 Bandwidth.com Clec Tucson 7/20/2022
520-654 Commio Sierra Vista 8/25/2022
520-655 Fractel Superior 6/2/2020
520-656 Cellco Partnership Willcox 10/27/2022
520-657 Bandwidth.com Clec Hayden 10/4/2022
520-658 T-Mobile USA Tucson 10/24/2014
520-659 Nuso Nogales 9/15/2022
520-660 T-Mobile USA Casa Grande 9/20/2022
520-661 T-Mobile USA Tucson N/A
520-662 Qwest Corporation Tucson 6/11/2004
520-663 Qwest Corporation Tucson N/A
520-664 Qwest Corporation Tucson N/A
520-665 Qwest Corporation Tucson N/A
520-666 Onvoy Casa Grande 9/12/2017
520-667 Nuso Tucson 02/13/2023
520-668 Cellco Partnership Tucson 5/8/2002
520-669 MCIMetro Access Transmission Services Sierra Vista 03/09/2023
520-670 Qwest Corporation Tucson N/A
520-671 MCIMetro Access Transmission Services Sierra Vista 03/09/2023
520-672 MCIMetro Access Transmission Services Sierra Vista 03/09/2023
520-673 MCIMetro Access Transmission Services Sierra Vista 03/09/2023
520-674 MCIMetro Access Transmission Services Sierra Vista 03/09/2023
520-675 Dish Wireless Tucson 04/14/2023
520-676 Cellco Partnership Willcox 06/06/2025
520-677 Dish Wireless Casa Grande 04/18/2023
520-678 Cellco Partnership Sierra Vista N/A
520-679 Cellco Partnership Tombstone 06/08/2023
520-680 Onvoy Bisbee 06/22/2023
520-681 Level 3 Communications Nogales 06/26/2023
520-682 Qwest Corporation Tucson N/A
520-683 Onvoy Casa Grande 08/11/2023
520-684 MCIMetro Access Transmission Services Sierra Vista 08/31/2023
520-685 Comcast IP Phone Sierra Vista 6/7/2017
520-686 Cellco Partnership Benson 6/8/2004
520-687 MCIMetro Access Transmission Services Sierra Vista 08/31/2023
520-688 Fractel Casa Grande 9/15/2021
520-689 Qwest Corporation Superior N/A
520-690 Qwest Corporation Tucson N/A
520-691 MCIMetro Access Transmission Services Sierra Vista 08/31/2023
520-692 MCIMetro Access Transmission Services Sierra Vista 08/31/2023
520-693 MCIMetro Access Transmission Services Sierra Vista 08/31/2023
520-694 Level 3 Telecom Of Arizona Tucson N/A
520-695 Qwest Corporation Tucson N/A
520-696 Qwest Corporation Tucson N/A
520-697 Cellco Partnership Tucson 09/06/2023
520-698 Cellco Partnership Willcox 10/18/2023
520-699 Fractel Sierra Vista 10/15/2021
520-701-XXXX --- 520-799-XXXX
NPANXX Carrier1 Area Served2 Date3
520-701 T-Mobile USA Casa Grande 11/09/2023
520-702 Onvoy Douglas 1/14/2022
520-703 Callworks Corporation Tucson 12/08/2023
520-704 New Cingular Wireless PCS Tucson 2/9/2010
520-705 Cellco Partnership Casa Grande N/A
520-706 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-707 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-708 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-709 Cellco Partnership Casa Grande N/A
520-710 Onvoy Spectrum Tucson 8/10/2022
520-712 Qwest Corporation Tucson N/A
520-713 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-714 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-715 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-716 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-717 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-718 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-719 Bandwidth.com Clec Tucson 7/23/2015
520-720 Qwest Corporation Benson N/A
520-721 Qwest Corporation Tucson N/A
520-722 Qwest Corporation Tucson N/A
520-723 Qwest Corporation Casa Grande N/A
520-724 Qwest Corporation Tucson 2/2/2011
520-725 MCIMetro Access Transmission Services Sierra Vista 01/08/2024
520-727 New Cingular Wireless PCS Douglas 8/24/2005
520-728 T-Mobile USA Casa Grande 02/16/2024
520-729 Cellco Partnership Tucson 10/17/2014
520-730 Cellco Partnership Tucson N/A
520-731 Qwest Corporation Tucson N/A
520-732 Cellco Partnership Sierra Vista 5/15/2001
520-733 Qwest Corporation Tucson N/A
520-734 Cellco Partnership Tucson 03/01/2024
520-735 Teleport Communications America Sierra Vista 03/28/2024
520-736 New Cingular Wireless PCS Casa Grande 06/13/2024
520-737 Allo Communications Sierra Vista 06/17/2024
520-738 Cellco Partnership Tucson 10/22/2024
520-739 Onvoy Spectrum Tucson 11/14/2024
520-740 Qwest Corporation Tucson N/A
520-741 Qwest Corporation Tucson N/A
520-742 Qwest Corporation Tucson N/A
520-743 Qwest Corporation Tucson N/A
520-744 Qwest Corporation Tucson N/A
520-745 Qwest Corporation Tucson N/A
520-746 Qwest Corporation Tucson N/A
520-747 Qwest Corporation Tucson N/A
520-748 Qwest Corporation Tucson N/A
520-749 Qwest Corporation Tucson N/A
520-750 Qwest Corporation Tucson N/A
520-751 Qwest Corporation Tucson N/A
520-752 Cellco Partnership Casa Grande 01/08/2025
520-753 Cellco Partnership Tucson 01/31/2025
520-754 Cellco Partnership Sacaton 02/14/2025
520-755 Fractel Lone Butte 9/24/2020
520-756 New Cingular Wireless PCS Tucson 03/18/2025
520-757 T-Mobile USA Casa Grande 03/25/2025
520-758 Fractel Blackwater 10/19/2020
520-759 Cellco Partnership Casa Grande 9/10/2018
520-760 Qwest Corporation Tucson N/A
520-761 Qwest Corporation Nogales N/A
520-762 Qwest Corporation Tucson N/A
520-763 T-Mobile USA Casa Grande 07/11/2025
520-764 T-Mobile USA Casa Grande 10/28/2025
520-766 Valley Connections Willcox 12/21/2005
520-770 Qwest Corporation Tucson N/A
520-771 Vonage America Tucson 12/20/2017
520-772 Ton80 Communications Superior 1/14/2022
520-775 Bandwidth.com Clec Tucson 2/28/2014
520-777 Level 3 Telecom Of Arizona Tucson 10/27/2004
520-779 Bandwidth.com Clec Willcox 9/10/2018
520-780 Cellco Partnership Tucson N/A
520-783 MetroPCS Tucson 2/5/2019
520-784 Qwest Corporation Tucson N/A
520-785 Allo Communications Tucson 10/22/2025
520-788 T-Mobile USA Casa Grande 9/22/2014
520-789 T-Mobile USA Tucson 2/24/2012
520-790 Qwest Corporation Tucson N/A
520-791 Qwest Corporation Tucson N/A
520-792 Qwest Corporation Tucson N/A
520-793 Qwest Corporation Tucson N/A
520-794 Qwest Corporation Tucson N/A
520-795 Qwest Corporation Tucson N/A
520-796 Gila River Telecomm Lone Butte N/A
520-797 Qwest Corporation Tucson N/A
520-798 Qwest Corporation Tucson N/A
520-799 Qwest Corporation Tucson N/A
520-800-XXXX --- 520-899-XXXX
NPANXX Carrier1 Area Served2 Date3
520-800 Onvoy Tucson 1/28/2015
520-801 Wide Voice Tucson 04/18/2025
520-802 Leap Telecom Tucson 10/01/2025
520-803 Qwest Corporation Sierra Vista N/A
520-805 Qwest Corporation Douglas N/A
520-806 Qwest Corporation Tucson N/A
520-807 Qwest Corporation Tucson N/A
520-808 New Cingular Wireless PCS Tucson 8/17/2001
520-809 Intrado Communications Tucson 12/23/2014
520-812 Bandwidth.com Clec Tucson 4/19/2011
520-815 Bandwidth.com Clec Tucson 3/10/2015
520-818 Qwest Corporation Tucson N/A
520-820 Cellco Partnership Tucson N/A
520-822 Qwest Corporation Tucson N/A
520-823 Arizona Tel. Co. Sasabe N/A
520-824 Valley Tel Coop Inc Sunizona N/A
520-825 Qwest Corporation Tucson N/A
520-826 Valley Tel Coop Inc Pearce N/A
520-827 Cellco Partnership Superior N/A
520-829 Level 3 Communications Tucson 8/17/2001
520-831 T-Mobile USA Prescott N/A
520-833 Cellco Partnership Tucson N/A
520-834 New Cingular Wireless PCS Tucson 10/17/2001
520-836 Qwest Corporation Casa Grande N/A
520-837 Teleport Communications America Tucson N/A
520-838 Qwest Corporation Tucson 1/26/2001
520-839 T-Mobile USA Nogales N/A
520-840 Cellco Partnership Casa Grande N/A
520-841 New Cingular Wireless PCS Nogales N/A
520-842 Onvoy Nogales N/A
520-843 Onvoy Sierra Vista N/A
520-844 Onvoy Tucson N/A
520-845 Valley Tel Coop Inc San Simon N/A
520-847 Valley Tel Coop Inc Bowie N/A
520-848 MetroPCS Tucson 1/19/2015
520-849 Cellco Partnership Tucson 6/15/2017
520-850 Cellco Partnership Tucson N/A
520-851 Teleport Communications America Sierra Vista 10/22/2024
520-852 Teleport Communications America Sierra Vista 10/22/2024
520-853 Teleport Communications America Sierra Vista 10/22/2024
520-854 Teleport Communications America Sierra Vista 10/22/2024
520-855 Teleport Communications America Sierra Vista 10/22/2024
520-858 Qwest Corporation Casa Grande 11/7/2007
520-860 Cellco Partnership Nogales N/A
520-861 T-Mobile USA Tucson N/A
520-866 Qwest Corporation Casa Grande 8/17/2001
520-867 New Cingular Wireless PCS Tucson 11/19/2001
520-868 Qwest Corporation Casa Grande N/A
520-869 T-Mobile USA Tucson N/A
520-870 T-Mobile USA Tucson N/A
520-872 Qwest Corporation Tucson N/A
520-873 Qwest Corporation Tucson N/A
520-874 Qwest Corporation Tucson N/A
520-876 Qwest Corporation Casa Grande N/A
520-877 Qwest Corporation Tucson N/A
520-878 Qwest Corporation Tucson N/A
520-879 Qwest Corporation Tucson N/A
520-881 Qwest Corporation Tucson N/A
520-882 Qwest Corporation Tucson N/A
520-883 Qwest Corporation Tucson N/A
520-884 Qwest Corporation Tucson N/A
520-885 Qwest Corporation Tucson N/A
520-886 Qwest Corporation Tucson N/A
520-887 Qwest Corporation Tucson N/A
520-888 Qwest Corporation Tucson N/A
520-889 Qwest Corporation Tucson N/A
520-891 T-Mobile USA Tucson N/A
520-895 Level 3 Telecom Of Arizona Sierra Vista N/A
520-896 Qwest Corporation San Manuel N/A
520-898 Midvale Telephone Exchange Silverbell 4/2/2002
520-899 Fractel Maricopa Village 9/24/2020
520-900-XXXX --- 520-999-XXXX
NPANXX Carrier1 Area Served2 Date3
520-900 Onvoy Tucson 8/13/2015
520-901 Level 3 Telecom Of Arizona Tucson N/A
520-903 Qwest Corporation Tucson N/A
520-904 Cellco Partnership Tucson N/A
520-906 New Cingular Wireless PCS Tucson N/A
520-907 New Cingular Wireless PCS Tucson N/A
520-908 Qwest Corporation Tucson N/A
520-909 Cellco Partnership Tucson N/A
520-910 Onvoy Tucson 2/1/2021
520-912 New Cingular Wireless PCS Tucson 10/24/2013
520-917 MCIMetro Access Transmission Services Tucson N/A
520-918 MCIMetro Access Transmission Services Tucson N/A
520-921 T-Mobile USA Sedona N/A
520-924 Electric Lightwave Nogales N/A
520-929 Ton80 Communications Willcox 2/18/2022
520-934 Ton80 Communications Tucson 4/6/2021
520-940 T-Mobile USA Tucson N/A
520-941 Teleport Communications America Sierra Vista 07/27/2023
520-942 Teleport Communications America Sierra Vista 07/27/2023
520-943 Teleport Communications America Sierra Vista 07/27/2023
520-944 Teleport Communications America Sierra Vista 07/27/2023
520-945 Teleport Communications America Sierra Vista 07/27/2023
520-949 Ton80 Communications Santa Rosa 1/14/2022
520-954 Cellco Partnership Tucson N/A
520-955 Cellco Partnership Tucson N/A
520-965 T-Mobile USA Tucson 1/2/2015
520-966 Fractel Silverbell 10/19/2020
520-971 T-Mobile USA Tucson N/A
520-975 Cellco Partnership Tucson N/A
520-977 T-Mobile USA Tucson N/A
520-979 T-Mobile USA Tucson N/A
520-980 MetroPCS Nogales N/A
520-981 T-Mobile USA Tucson N/A
520-982 T-Mobile USA Tucson N/A
520-987 Cellco Partnership Nogales N/A
520-988 Cellco Partnership Nogales N/A
520-989 Electric Lightwave Tucson N/A
520-990 T-Mobile USA Tucson N/A
520-991 T-Mobile USA Tucson N/A
520-993 Cellco Partnership Sells N/A
520-994 Ton80 Communications Sasabe 2/18/2022
520-999 Onvoy Tucson 11/5/2012
  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 520

City1 County Time Zone1
Aguila Maricopa MST
Ajo Pima MST
Amado Santa Cruz MST
Arivaca Pima MST
Arizona City Pinal MST
Bapchule Pinal MST
Benson Cochise MST
Bisbee Cochise MST
Bowie Cochise MST
Casa Grande Pinal MST
Casas Adobes Pima MST
Catalina Pima MST
Catalina Foothills Pima MST
Cochise Cochise MST
Coolidge Pinal MST
Cortaro Pima MST
Douglas Cochise MST
Dragoon Cochise MST
Drexel Heights Pima MST
Elfrida Cochise MST
Elgin Santa Cruz MST
Eloy Pinal MST
Florence Pinal MST
Fort Huachuca Cochise MST
Green Valley Pima MST
Hereford Cochise MST
Huachuca City Cochise MST
Kearny Pinal MST
Lukeville Pima MST
Mammoth Pinal MST
Marana Pima MST
Maricopa Pinal MST
Mc Neal Cochise MST
Mount Lemmon Pima MST
Naco Cochise MST
Nogales Santa Cruz MST
Oracle Pinal MST
Patagonia Santa Cruz MST
Pearce Cochise MST
Picacho Pinal MST
Pirtleville Cochise MST
Pomerene Cochise MST
Red Rock Pinal MST
Rillito Pima MST
Rio Rico Santa Cruz MST
Sacaton Pinal MST
Sahuarita Pima MST
San Manuel Pinal MST
San Simon Cochise MST
Sasabe Pima MST
Sells Pima MST
Sierra Vista Cochise MST
Sonoita Santa Cruz MST
St David Cochise MST
Stanfield Pinal MST
Superior Pinal MST
Tombstone Cochise MST
Topawa Pima MST
Tubac Santa Cruz MST
Tucson Pima MST
Tumacacori Santa Cruz MST
Vail Pima MST
Valley Farms Pinal MST
Willcox Cochise MST
  1. Listed above are most places served by USA area code 520. 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. MST stands for Mountain Standard Time (currently ).
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