Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
PHOENIX prefixes in area code 623
NANPA records 314 assigned NXX blocks to rate center PHOENIX in area code 623, 100.0% of the 314 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 29 holders hold those blocks, the largest being QWEST CORPORATION (97), T-MOBILE USA, INC. (39), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ (31). The earliest assignment on record here is 2001-01-18 and the most recent 2026-10-16. 226 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 315, 458, 480, 541 – overlay codes cover the same geography, so a rate center is served by all of them.
314 assigned blocks – 100% of 623
29 holders of record
226 of them pooled in 1,000-number lots
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 623-200 | Onvoy ONVOY, LLC - AZ | 2015-10-27 | yes | yes |
| 623-201 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2008-07-11 | yes | yes |
| 623-202 | T-Mobile T-MOBILE USA, INC. | 2001-02-14 | yes | yes |
| 623-203 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-01-18 | no | yes |
| 623-204 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-03-07 | no | yes |
| 623-205 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-03-07 | no | yes |
| 623-206 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-03-07 | no | yes |
| 623-207 | Lumen QWEST CORPORATION | 2008-06-05 | yes | yes |
| 623-208 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2008-06-03 | yes | yes |
| 623-209 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | – | yes | yes |
| 623-210 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-212 | T-Mobile T-MOBILE USA, INC. | 2023-01-11 | yes | yes |
| 623-213 | T-Mobile T-MOBILE USA, INC. | 2016-03-22 | yes | yes |
| 623-214 | Lumen QWEST CORPORATION | – | no | yes |
| 623-215 | Windstream PAETEC ITEL, LLC | 2001-03-21 | yes | yes |
| 623-216 | T-Mobile METROPCS, INC. | 2014-09-19 | yes | yes |
| 623-217 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-218 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 623-219 | T-Mobile METROPCS, INC. | 2015-01-19 | yes | yes |
| 623-220 | Onvoy ONVOY, LLC - AZ | 2024-02-23 | yes | yes |
| 623-221 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-222 | Lumen QWEST CORPORATION | 2007-03-29 | yes | yes |
| 623-223 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2009-06-30 | yes | yes |
| 623-224 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2009-02-13 | yes | yes |
| 623-225 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2002-03-07 | yes | yes |
| 623-226 | T-Mobile METROPCS, INC. | 2016-03-09 | yes | yes |
| 623-227 | Bandwidth BANDWIDTH.COM CLEC, LLC - AZ | 2014-11-13 | yes | yes |
| 623-228 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 2015-06-26 | yes | yes |
| 623-229 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-07-17 | no | yes |
| 623-230 | T-Mobile T-MOBILE USA, INC. | 2016-04-21 | yes | yes |
| 623-231 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2018-03-29 | yes | yes |
| 623-232 | Lumen QWEST CORPORATION | 2016-10-19 | yes | yes |
| 623-233 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2016-10-21 | yes | yes |
| 623-234 | Lumen QWEST CORPORATION | 2007-12-31 | yes | yes |
| 623-235 | Lumen QWEST CORPORATION | 2016-05-10 | yes | yes |
| 623-236 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2007-03-22 | yes | yes |
| 623-237 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2007-06-21 | yes | yes |
| 623-238 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2006-08-24 | yes | yes |
| 623-239 | T-Mobile T-MOBILE USA, INC. | 2007-09-07 | yes | yes |
| 623-240 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2009-06-15 | yes | yes |
| 623-241 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2007-02-23 | yes | yes |
| 623-242 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2006-01-05 | yes | yes |
| 623-243 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2007-02-05 | yes | yes |
| 623-244 | Onvoy ONVOY, LLC - AZ | 2018-08-24 | yes | yes |
| 623-245 | Lumen QWEST CORPORATION | – | no | yes |
| 623-246 | T-Mobile METROPCS, INC. | 2019-01-14 | yes | yes |
| 623-247 | Lumen QWEST CORPORATION | – | no | yes |
| 623-248 | Lumen QWEST CORPORATION | 2019-02-14 | yes | yes |
| 623-249 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2007-05-23 | yes | yes |
| 623-250 | Bandwidth BANDWIDTH.COM CLEC, LLC - AZ | 2020-02-13 | yes | yes |
| 623-251 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2007-09-05 | yes | yes |
| 623-252 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2007-09-07 | yes | yes |
| 623-253 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2020-01-07 | yes | yes |
| 623-254 | T-Mobile METROPCS, INC. | 2020-03-05 | yes | yes |
| 623-255 | T-Mobile T-MOBILE USA, INC. | 2007-03-16 | yes | yes |
| 623-256 | Comcast COMCAST IP PHONE, LLC | – | yes | yes |
| 623-257 | Bandwidth BANDWIDTH.COM CLEC, LLC - AZ | 2020-06-19 | yes | yes |
| 623-258 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2009-09-09 | yes | yes |
| 623-259 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2019-06-14 | yes | yes |
| 623-260 | Onvoy ONVOY, LLC - AZ | 2024-07-17 | yes | yes |
| 623-261 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-262 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2006-01-19 | yes | yes |
| 623-263 | Onvoy ONVOY, LLC - AZ | 2019-12-19 | yes | yes |
| 623-264 | T-Mobile T-MOBILE USA, INC. | 2020-09-15 | yes | yes |
| 623-265 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2020-09-08 | yes | yes |
| 623-266 | Comcast COMCAST IP PHONE, LLC | – | no | yes |
| 623-267 | TON80 COMMUNICATIONS, LLC | 2020-11-18 | yes | yes |
| 623-268 | T-Mobile T-MOBILE USA, INC. | 2021-03-25 | yes | yes |
| 623-269 | Comcast COMCAST IP PHONE, LLC | 2020-12-09 | yes | yes |
| 623-270 | Comcast COMCAST IP PHONE, LLC | 2021-03-30 | yes | yes |
| 623-271 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2006-09-27 | yes | yes |
| 623-272 | T-Mobile T-MOBILE USA, INC. | 2020-12-10 | yes | yes |
| 623-273 | T-Mobile T-MOBILE USA, INC. | 2021-07-01 | yes | yes |
| 623-274 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2021-10-07 | yes | yes |
| 623-275 | T-Mobile T-MOBILE USA, INC. | 2021-09-14 | yes | yes |
| 623-276 | T-Mobile T-MOBILE USA, INC. | 2022-04-22 | yes | yes |
| 623-277 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-07-19 | yes | yes |
| 623-278 | Telnyx TELNYX LLC | 2021-10-04 | yes | yes |
| 623-279 | Charter ONVOY SPECTRUM, LLC | 2021-11-12 | yes | yes |
| 623-280 | T-Mobile T-MOBILE USA, INC. | 2021-12-02 | yes | yes |
| 623-281 | T-Mobile T-MOBILE USA, INC. | 2022-01-13 | yes | yes |
| 623-282 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2011-10-04 | yes | yes |
| 623-283 | Onvoy ONVOY, LLC - AZ | 2022-04-11 | yes | yes |
| 623-284 | T-Mobile T-MOBILE USA, INC. | 2022-02-22 | yes | yes |
| 623-285 | Lumen QWEST CORPORATION | 2015-05-21 | yes | yes |
| 623-286 | T-Mobile T-MOBILE USA, INC. | 2022-07-14 | yes | yes |
| 623-287 | COMMIO, LLC | 2022-06-14 | yes | yes |
| 623-288 | Onvoy ONVOY, LLC - AZ | 2022-02-22 | yes | yes |
| 623-289 | Bandwidth BANDWIDTH.COM CLEC, LLC - AZ | 2018-01-17 | yes | yes |
| 623-290 | T-Mobile T-MOBILE USA, INC. | 2022-11-23 | yes | yes |
| 623-291 | NUSO, LLC | 2022-09-21 | yes | yes |
| 623-292 | T-Mobile METROPCS, INC. | 2020-09-02 | yes | yes |
| 623-293 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | – | yes | yes |
| 623-294 | Onvoy ONVOY, LLC - AZ | 2022-07-15 | yes | yes |
| 623-295 | Bandwidth BANDWIDTH.COM CLEC, LLC - AZ | 2011-07-22 | yes | yes |
| 623-296 | T-Mobile T-MOBILE USA, INC. | 2015-03-27 | yes | yes |
| 623-297 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-298 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 623-299 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2012-05-03 | yes | yes |
| 623-300 | Onvoy ONVOY, LLC - AZ | 2015-08-12 | yes | yes |
| 623-301 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2022-09-23 | yes | yes |
| 623-302 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2007-10-09 | yes | yes |
| 623-303 | Onvoy ONVOY, LLC - AZ | 2020-11-09 | yes | yes |
| 623-304 | Onvoy ONVOY, LLC - AZ | 2022-06-03 | yes | yes |
| 623-305 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2023-03-09 | yes | yes |
| 623-306 | Charter ONVOY SPECTRUM, LLC | – | yes | yes |
| 623-307 | ALLO COMMUNICATIONS LLC | 2023-04-18 | yes | yes |
| 623-308 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | – | yes | yes |
| 623-309 | Charter ONVOY SPECTRUM, LLC | 2023-06-12 | yes | yes |
| 623-310 | Onvoy ONVOY, LLC - AZ | 2026-08-14 | yes | no |
| 623-312 | Comcast COMCAST IP PHONE, LLC | – | yes | yes |
| 623-313 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2006-04-06 | yes | yes |
| 623-320 | T-Mobile T-MOBILE USA, INC. | 2022-09-20 | yes | yes |
| 623-321 | Onvoy ONVOY, LLC - AZ | – | no | yes |
| 623-322 | Comcast COMCAST IP PHONE, LLC | – | no | yes |
| 623-323 | Onvoy ONVOY, LLC - AZ | 2020-02-20 | yes | yes |
| 623-324 | Charter ONVOY SPECTRUM, LLC | 2022-08-31 | yes | yes |
| 623-326 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 623-327 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-328 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-329 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-10-24 | no | yes |
| 623-330 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 623-332 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 623-333 | Lumen QWEST CORPORATION | 2006-08-29 | yes | yes |
| 623-334 | Lumen QWEST CORPORATION | – | no | yes |
| 623-335 | Bandwidth BANDWIDTH.COM CLEC, LLC - AZ | 2011-07-06 | yes | yes |
| 623-336 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-04-05 | yes | yes |
| 623-337 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | – | yes | yes |
| 623-340 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-341 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-343 | Onvoy ONVOY, LLC - AZ | 2022-09-01 | yes | yes |
| 623-344 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | – | yes | yes |
| 623-349 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | – | yes | yes |
| 623-352 | Onvoy ONVOY, LLC - AZ | 2022-10-04 | yes | yes |
| 623-356 | FRACTEL, LLC | 2020-09-24 | yes | yes |
| 623-362 | Lumen QWEST CORPORATION | – | no | yes |
| 623-363 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | no | yes |
| 623-373 | VoIP Innovations VOIP INNOVATIONS, LLC | 2026-04-20 | yes | yes |
| 623-374 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-376 | Lumen QWEST CORPORATION | – | no | yes |
| 623-377 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2002-03-06 | yes | yes |
| 623-383 | Onvoy ONVOY, LLC - AZ | – | yes | yes |
| 623-385 | Lumen LEVEL 3 TELECOM OF ARIZONA, LLC - AZ | – | yes | yes |
| 623-386 | Lumen QWEST CORPORATION | – | no | yes |
| 623-387 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2011-03-29 | yes | yes |
| 623-388 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-393 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-396 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2011-09-01 | yes | yes |
| 623-398 | XO ARIZONA, INC. | – | yes | yes |
| 623-399 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-400 | FRACTEL, LLC | 2020-07-14 | yes | yes |
| 623-401 | Onvoy ONVOY, LLC - AZ | 2018-11-01 | yes | yes |
| 623-404 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2017-04-28 | yes | yes |
| 623-412 | Lumen QWEST CORPORATION | – | no | yes |
| 623-414 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2006-09-12 | yes | yes |
| 623-418 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-10-24 | no | yes |
| 623-419 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2012-01-30 | yes | yes |
| 623-428 | Bandwidth BANDWIDTH.COM CLEC, LLC - AZ | 2010-10-20 | yes | yes |
| 623-432 | T-Mobile T-MOBILE USA, INC. | 2009-10-02 | yes | yes |
| 623-433 | T-Mobile T-MOBILE USA, INC. | 2005-09-21 | yes | yes |
| 623-434 | Lumen QWEST CORPORATION | – | no | yes |
| 623-435 | Lumen QWEST CORPORATION | – | no | yes |
| 623-438 | AHOI LLC | 2026-08-07 | yes | yes |
| 623-439 | Charter ONVOY SPECTRUM, LLC | 2017-07-13 | yes | yes |
| 623-440 | Comcast COMCAST IP PHONE, LLC | 2018-05-25 | yes | yes |
| 623-444 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | – | yes | yes |
| 623-445 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-451 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-455 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2004-12-27 | yes | yes |
| 623-456 | Dish BOOST SUBSCRIBERCO L.L.C. | 2025-05-05 | yes | yes |
| 623-462 | Onvoy ONVOY, LLC - AZ | 2022-09-01 | yes | yes |
| 623-463 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-465 | Lumen QWEST CORPORATION | – | no | yes |
| 623-466 | Comcast COMCAST IP PHONE, LLC | – | yes | yes |
| 623-469 | Bandwidth BANDWIDTH.COM CLEC, LLC - AZ | 2017-04-27 | yes | yes |
| 623-471 | Lumen QWEST CORPORATION | 2019-08-26 | yes | yes |
| 623-473 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2018-10-02 | yes | yes |
| 623-474 | Lumen QWEST CORPORATION | – | no | yes |
| 623-476 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 623-478 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-486 | Lumen QWEST CORPORATION | – | no | yes |
| 623-487 | Lumen QWEST CORPORATION | – | no | yes |
| 623-492 | Lumen QWEST CORPORATION | – | no | yes |
| 623-498 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2010-04-16 | yes | yes |
| 623-499 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2015-06-15 | yes | yes |
| 623-500 | Onvoy ONVOY, LLC - AZ | 2013-02-05 | yes | yes |
| 623-505 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | – | yes | yes |
| 623-512 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | – | yes | yes |
| 623-516 | Lumen QWEST CORPORATION | – | no | yes |
| 623-518 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 623-521 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-522 | T-Mobile METROPCS, INC. | 2015-05-29 | yes | yes |
| 623-523 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-524 | Lumen QWEST CORPORATION | 2010-07-06 | yes | yes |
| 623-526 | Onvoy ONVOY, LLC - AZ | 2019-03-21 | yes | yes |
| 623-533 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-535 | Lumen QWEST CORPORATION | – | no | yes |
| 623-536 | Lumen QWEST CORPORATION | – | no | yes |
| 623-537 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-544 | Lumen QWEST CORPORATION | – | no | yes |
| 623-546 | Lumen QWEST CORPORATION | – | no | yes |
| 623-547 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-551 | Lumen QWEST CORPORATION | – | no | yes |
| 623-552 | T-Mobile T-MOBILE USA, INC. | 2008-07-23 | yes | yes |
| 623-556 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-561 | Lumen QWEST CORPORATION | – | no | yes |
| 623-562 | Comcast COMCAST IP PHONE, LLC | – | yes | yes |
| 623-565 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 2007-06-27 | yes | yes |
| 623-566 | Lumen QWEST CORPORATION | – | no | yes |
| 623-570 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 623-572 | Lumen QWEST CORPORATION | – | no | yes |
| 623-580 | Lumen QWEST CORPORATION | – | no | yes |
| 623-581 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-582 | Lumen QWEST CORPORATION | – | no | yes |
| 623-583 | Lumen QWEST CORPORATION | – | no | yes |
| 623-584 | Lumen QWEST CORPORATION | – | no | yes |
| 623-587 | Lumen QWEST CORPORATION | – | no | yes |
| 623-594 | Comcast COMCAST IP PHONE, LLC | – | no | yes |
| 623-600 | FRACTEL, LLC | 2019-09-13 | yes | yes |
| 623-606 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 623-622 | Dish BOOST SUBSCRIBERCO L.L.C. | 2026-10-06 | yes | no |
| 623-624 | Onvoy ONVOY, LLC - AZ | 2021-08-12 | yes | yes |
| 623-628 | T-Mobile T-MOBILE USA, INC. | – | no | yes |
| 623-632 | Charter ONVOY SPECTRUM, LLC | 2020-06-22 | yes | yes |
| 623-633 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2015-01-15 | yes | yes |
| 623-640 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | – | no | yes |
| 623-643 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-663 | Onvoy ONVOY, LLC - AZ | 2020-03-05 | yes | yes |
| 623-666 | Onvoy ONVOY, LLC - AZ | 2012-11-19 | yes | yes |
| 623-670 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | – | yes | yes |
| 623-680 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | – | no | yes |
| 623-683 | Comcast COMCAST IP PHONE, LLC | – | yes | yes |
| 623-687 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 623-688 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | – | yes | yes |
| 623-691 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-692 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2002-10-14 | yes | yes |
| 623-693 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2002-10-14 | yes | yes |
| 623-694 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | – | no | yes |
| 623-695 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | – | no | yes |
| 623-696 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2002-10-14 | yes | yes |
| 623-698 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2002-10-14 | yes | yes |
| 623-703 | T-Mobile T-MOBILE USA, INC. | – | yes | yes |
| 623-707 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | – | yes | yes |
| 623-715 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 2001-01-24 | yes | yes |
| 623-734 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | – | yes | yes |
| 623-738 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2009-05-19 | yes | yes |
| 623-742 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-745 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2015-09-28 | yes | yes |
| 623-748 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ | 2002-04-19 | yes | yes |
| 623-755 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2008-09-09 | yes | yes |
| 623-759 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2015-02-11 | yes | yes |
| 623-760 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | – | yes | yes |
| 623-764 | T-Mobile METROPCS, INC. | – | yes | yes |
| 623-772 | Lumen QWEST CORPORATION | – | no | yes |
| 623-773 | Lumen QWEST CORPORATION | – | no | yes |
| 623-776 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-777 | Peerless PEERLESS NETWORK OF ARIZONA, LLC - AZ | 2012-03-05 | yes | yes |
| 623-780 | Lumen QWEST CORPORATION | – | no | yes |
| 623-792 | Lumen LEVEL 3 TELECOM OF ARIZONA, LLC - AZ | – | yes | yes |
| 623-800 | Onvoy ONVOY, LLC - AZ | 2013-10-24 | yes | yes |
| 623-806 | GILA LOCAL EXCHANGE CARRIER, INC. - AZ | 2008-08-26 | yes | yes |
| 623-810 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | – | no | yes |
| 623-815 | Lumen QWEST CORPORATION | – | no | yes |
| 623-824 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | – | yes | yes |
| 623-825 | Lumen QWEST CORPORATION | – | no | yes |
| 623-826 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2002-06-17 | no | yes |
| 623-832 | Lumen QWEST CORPORATION | 2010-07-06 | yes | yes |
| 623-842 | Lumen QWEST CORPORATION | – | no | yes |
| 623-845 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-846 | Lumen QWEST CORPORATION | – | no | yes |
| 623-847 | Lumen QWEST CORPORATION | – | no | yes |
| 623-848 | Lumen QWEST CORPORATION | – | no | yes |
| 623-849 | Lumen QWEST CORPORATION | – | no | yes |
| 623-850 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | – | yes | yes |
| 623-853 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-856 | Lumen QWEST CORPORATION | – | no | yes |
| 623-866 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-869 | Lumen QWEST CORPORATION | – | no | yes |
| 623-872 | Lumen QWEST CORPORATION | – | no | yes |
| 623-873 | Lumen QWEST CORPORATION | – | no | yes |
| 623-875 | Lumen QWEST CORPORATION | – | no | yes |
| 623-876 | Lumen QWEST CORPORATION | 2001-04-24 | no | yes |
| 623-877 | Lumen QWEST CORPORATION | – | no | yes |
| 623-878 | Lumen QWEST CORPORATION | – | no | yes |
| 623-879 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-880 | 8x8 8X8, INC. | 2026-10-16 | yes | no |
| 623-882 | Lumen QWEST CORPORATION | – | yes | yes |
| 623-887 | Onvoy ONVOY, LLC - AZ | 2021-04-21 | yes | yes |
| 623-888 | Peerless PEERLESS NETWORK OF ARIZONA, LLC - AZ | 2012-05-23 | yes | yes |
| 623-889 | Allstream ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | – | yes | yes |
| 623-900 | Onvoy ONVOY, LLC - AZ | 2015-02-17 | yes | yes |
| 623-907 | Lumen QWEST CORPORATION | – | no | yes |
| 623-910 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | – | no | yes |
| 623-915 | Lumen QWEST CORPORATION | – | no | yes |
| 623-920 | Onvoy ONVOY, LLC - AZ | 2021-02-03 | yes | yes |
| 623-925 | Lumen QWEST CORPORATION | – | no | yes |
| 623-930 | Lumen QWEST CORPORATION | – | no | yes |
| 623-931 | Lumen QWEST CORPORATION | – | no | yes |
| 623-932 | Lumen QWEST CORPORATION | – | no | yes |
| 623-933 | Lumen QWEST CORPORATION | – | no | yes |
| 623-934 | Lumen QWEST CORPORATION | – | no | yes |
| 623-935 | Lumen QWEST CORPORATION | – | no | yes |
| 623-936 | Lumen QWEST CORPORATION | – | no | yes |
| 623-937 | Lumen QWEST CORPORATION | – | no | yes |
| 623-939 | Lumen QWEST CORPORATION | – | no | yes |
| 623-955 | ALLO COMMUNICATIONS LLC | 2025-10-22 | yes | yes |
| 623-972 | Lumen QWEST CORPORATION | – | no | yes |
| 623-974 | Lumen QWEST CORPORATION | – | no | yes |
| 623-975 | Lumen QWEST CORPORATION | – | no | yes |
| 623-977 | Lumen QWEST CORPORATION | – | no | yes |
| 623-979 | Lumen QWEST CORPORATION | – | no | yes |
| 623-980 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2001-10-09 | yes | yes |
| 623-986 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 2006-11-03 | yes | yes |
| 623-999 | Onvoy ONVOY, LLC - AZ | 2013-09-26 | yes | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| QWEST CORPORATION | Lumen | 97 | 30.9% |
| T-MOBILE USA, INC. | T-Mobile | 39 | 12.4% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | Verizon | 31 | 9.9% |
| ONVOY, LLC - AZ | Onvoy | 29 | 9.2% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 22 | 7% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 13 | 4.1% |
| COMCAST IP PHONE, LLC | Comcast | 11 | 3.5% |
| LEVEL 3 COMMUNICATIONS, LLC - AZ | Lumen | 10 | 3.2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | AT&T | 9 | 2.9% |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | Allstream | 8 | 2.5% |
| METROPCS, INC. | T-Mobile | 8 | 2.5% |
| BANDWIDTH.COM CLEC, LLC - AZ | Bandwidth | 8 | 2.5% |
| ONVOY SPECTRUM, LLC | Charter | 6 | 1.9% |
| FRACTEL, LLC | – | 3 | 1% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 2 | 0.6% |
| ALLO COMMUNICATIONS LLC | – | 2 | 0.6% |
| LEVEL 3 TELECOM OF ARIZONA, LLC - AZ | Lumen | 2 | 0.6% |
| BOOST SUBSCRIBERCO L.L.C. | Dish | 2 | 0.6% |
| PEERLESS NETWORK OF ARIZONA, LLC - AZ | Peerless | 2 | 0.6% |
| PAETEC ITEL, LLC | Windstream | 1 | 0.3% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 0.3% |
| TELNYX LLC | Telnyx | 1 | 0.3% |
| COMMIO, LLC | – | 1 | 0.3% |
| NUSO, LLC | – | 1 | 0.3% |
| VOIP INNOVATIONS, LLC | VoIP Innovations | 1 | 0.3% |
| XO ARIZONA, INC. | – | 1 | 0.3% |
| AHOI LLC | – | 1 | 0.3% |
| GILA LOCAL EXCHANGE CARRIER, INC. - AZ | – | 1 | 0.3% |
| 8X8, INC. | 8x8 | 1 | 0.3% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to PHOENIX in area code 623?
314 blocks: 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 212 and 302 more, all listed in the table above.
Which carriers have numbers in PHOENIX?
QWEST CORPORATION (97 blocks), T-MOBILE USA, INC. (39 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ (31 blocks), ONVOY, LLC - AZ (29 blocks), NEW CINGULAR WIRELESS PCS, LLC (22 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (13 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is PHOENIX a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.