Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
MOBILE prefixes in area code 251
NANPA records 233 assigned NXX blocks to rate center MOBILE in area code 251, 44.1% of the 528 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. 38 holders hold those blocks, the largest being BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (71), NEW CINGULAR WIRELESS PCS, LLC - GA (40), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL (21). The earliest assignment on record here is 2001-01-03 and the most recent 2026-09-18. 155 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
233 assigned blocks – 44.1% of 251
38 holders of record
155 of them pooled in 1,000-number lots
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 251-205 | Onvoy ONVOY, LLC - AL | 2023-09-13 | yes | yes |
| 251-206 | Windstream PAETEC ITEL, LLC | 2012-02-21 | yes | yes |
| 251-208 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-209 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | – | no | yes |
| 251-214 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2005-04-27 | yes | yes |
| 251-217 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AL | 2003-10-27 | yes | yes |
| 251-219 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-220 | Onvoy ONVOY, LLC - AL | 2015-11-20 | yes | yes |
| 251-221 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 2002-04-25 | no | yes |
| 251-222 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 2009-11-12 | yes | yes |
| 251-232 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | no | yes |
| 251-234 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | yes | yes |
| 251-243 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2003-07-29 | yes | yes |
| 251-252 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AL | 2004-01-27 | yes | yes |
| 251-259 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | 2004-07-01 | yes | yes |
| 251-263 | Onvoy ONVOY, LLC - AL | 2009-01-02 | yes | yes |
| 251-264 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2016-09-02 | yes | yes |
| 251-266 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 2017-02-07 | yes | yes |
| 251-272 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AL | 2006-01-30 | yes | yes |
| 251-277 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 2017-04-29 | yes | yes |
| 251-281 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2008-02-07 | yes | yes |
| 251-283 | Vonage VONAGE AMERICA LLC | 2018-03-13 | yes | yes |
| 251-285 | Onvoy ONVOY, LLC - AL | 2008-09-29 | yes | yes |
| 251-287 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL | 2009-04-07 | yes | yes |
| 251-288 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 2010-01-13 | yes | yes |
| 251-289 | Bandwidth BANDWIDTH.COM CLEC, LLC - AL | 2008-05-14 | yes | yes |
| 251-295 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | yes | yes |
| 251-298 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 2010-03-08 | yes | yes |
| 251-300 | TELEPAK NETWORKS, INC. - AL | 2006-05-08 | yes | yes |
| 251-301 | TELEPAK NETWORKS, INC. - AL | 2012-11-09 | yes | yes |
| 251-303 | NUSO, LLC | 2013-02-06 | yes | yes |
| 251-304 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-305 | Comcast COMCAST IP PHONE, LLC | 2019-06-04 | yes | yes |
| 251-307 | PINE BELT BROADCASTING DBA PINE BELT TEL COMP SVCS | 2013-03-07 | yes | yes |
| 251-308 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2014-02-10 | yes | yes |
| 251-316 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-318 | Telnyx TELNYX LLC | 2019-11-19 | yes | yes |
| 251-319 | INTRADO COMMUNICATIONS LLC | 2020-03-31 | yes | yes |
| 251-323 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2020-04-27 | yes | yes |
| 251-326 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AL | 2020-06-03 | yes | yes |
| 251-327 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | yes | yes |
| 251-328 | CSC WIRELESS, LLC | 2020-07-22 | yes | yes |
| 251-329 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2020-08-26 | yes | yes |
| 251-330 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-331 | SOUTHERN COMMUNICATIONS SERVICES, INC. | – | no | yes |
| 251-332 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2020-11-23 | yes | yes |
| 251-333 | Onvoy ONVOY, LLC - AL | 2014-12-24 | yes | yes |
| 251-338 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 251-340 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-341 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-342 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-343 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-344 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-345 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-348 | AT&T AT&T ENTERPRISES, LLC | 2009-05-08 | yes | yes |
| 251-349 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 2021-03-05 | yes | yes |
| 251-352 | Spok SPOK, INC. | – | no | yes |
| 251-355 | Onvoy ONVOY, LLC - AL | 2017-08-23 | yes | yes |
| 251-358 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2021-06-23 | yes | yes |
| 251-361 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AL | 2021-08-04 | yes | yes |
| 251-366 | CELLULAR SOUTH, INC. | 2002-06-24 | no | yes |
| 251-367 | CELLULAR SOUTH, INC. | – | no | yes |
| 251-370 | AT&T AT&T - LOCAL | – | yes | yes |
| 251-371 | Spok SPOK, INC. | – | no | yes |
| 251-373 | IP HORIZON LLC | 2021-09-14 | yes | yes |
| 251-374 | Charter ONVOY SPECTRUM, LLC | 2021-11-16 | yes | yes |
| 251-375 | Lumen LEVEL 3 TELECOM OF ALABAMA, LLC - AL | – | yes | yes |
| 251-376 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2021-11-18 | yes | yes |
| 251-377 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-378 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 251-379 | T-Mobile METROPCS, INC. | – | yes | yes |
| 251-380 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-381 | NUSO, LLC | 2021-12-03 | yes | yes |
| 251-382 | T-Mobile METROPCS, INC. | 2002-03-11 | yes | yes |
| 251-384 | T-Mobile METROPCS, INC. | 2022-03-09 | yes | yes |
| 251-385 | Onvoy ONVOY, LLC - AL | 2017-02-01 | yes | yes |
| 251-386 | Windstream PAETEC ITEL, LLC | 2022-03-28 | yes | yes |
| 251-391 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | – | no | yes |
| 251-394 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | 2022-05-25 | yes | yes |
| 251-395 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 2022-06-22 | yes | yes |
| 251-396 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | 2022-06-27 | yes | yes |
| 251-398 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | 2022-06-27 | yes | yes |
| 251-401 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | no | yes |
| 251-402 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | no | yes |
| 251-404 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2001-06-27 | yes | yes |
| 251-405 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-406 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2002-04-04 | yes | yes |
| 251-408 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-410 | TELEPAK NETWORKS, INC. - AL | 2002-07-31 | no | yes |
| 251-414 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-415 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-417 | Spok SPOK, INC. | – | no | yes |
| 251-421 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | no | yes |
| 251-422 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | no | yes |
| 251-423 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | no | yes |
| 251-425 | TELEPAK NETWORKS, INC. - AL | – | no | yes |
| 251-426 | AIRUS, INC. - AL | 2023-01-19 | yes | yes |
| 251-431 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-432 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-433 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-434 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-435 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-436 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-438 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-439 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-441 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-442 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-443 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-444 | Onvoy ONVOY, LLC - AL | 2015-02-18 | yes | yes |
| 251-445 | TELEPAK NETWORKS, INC. - AL | 2002-06-12 | no | yes |
| 251-447 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-450 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-452 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-454 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-455 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-456 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-457 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-458 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | – | no | yes |
| 251-459 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-460 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-461 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-463 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-465 | FRACTEL, LLC | 2020-07-13 | yes | yes |
| 251-468 | Onvoy ONVOY, LLC - AL | 2023-10-16 | yes | yes |
| 251-469 | Onvoy ONVOY, LLC - AL | 2024-01-08 | yes | yes |
| 251-470 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-471 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-472 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-473 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-476 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-477 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2024-02-12 | yes | yes |
| 251-478 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-479 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-481 | COMMIO, LLC | 2024-02-12 | yes | yes |
| 251-485 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2024-05-09 | yes | yes |
| 251-486 | Bandwidth BANDWIDTH.COM CLEC, LLC - AL | 2024-05-13 | yes | yes |
| 251-487 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | yes | yes |
| 251-489 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2024-09-26 | yes | yes |
| 251-490 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-497 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2025-02-14 | yes | yes |
| 251-499 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AL | 2025-02-14 | yes | yes |
| 251-501 | Twilio TWILIO INTERNATIONAL, INC. | 2020-09-30 | yes | yes |
| 251-503 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2025-04-08 | yes | yes |
| 251-507 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2025-04-23 | yes | yes |
| 251-508 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | – | yes | yes |
| 251-509 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AL | – | yes | yes |
| 251-510 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-513 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | yes | yes |
| 251-516 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2025-05-28 | yes | yes |
| 251-518 | T-Mobile METROPCS, INC. | – | yes | yes |
| 251-520 | COMMIO, LLC | 2022-01-19 | yes | yes |
| 251-524 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2025-05-28 | yes | yes |
| 251-525 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | yes | yes |
| 251-526 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2025-06-12 | yes | yes |
| 251-527 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2025-06-12 | yes | yes |
| 251-528 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2025-06-12 | yes | yes |
| 251-529 | FRACTEL, LLC | 2019-12-02 | yes | yes |
| 251-533 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | no | yes |
| 251-534 | WAVENATION, LLC | 2025-10-17 | yes | yes |
| 251-541 | WIDE VOICE, LLC - AL | 2026-09-18 | yes | no |
| 251-544 | Windstream PAETEC ITEL, LLC | – | no | yes |
| 251-545 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AL | 2002-05-13 | yes | yes |
| 251-554 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | – | no | yes |
| 251-568 | Spok SPOK, INC. | – | no | yes |
| 251-574 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-581 | SOUTHERN COMMUNICATIONS SERVICES, INC. | – | yes | yes |
| 251-582 | Spok SPOK, INC. | – | no | yes |
| 251-583 | T-Mobile METROPCS, INC. | – | yes | yes |
| 251-586 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 251-587 | EXIANT COMMUNICATIONS LLC | 2026-01-09 | yes | yes |
| 251-588 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2025-03-06 | yes | yes |
| 251-591 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-599 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2001-01-03 | no | yes |
| 251-602 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-604 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-605 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-607 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-610 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-617 | Spok SPOK, INC. | – | no | yes |
| 251-620 | TELEPAK NETWORKS, INC. - AL | 2018-01-16 | yes | yes |
| 251-621 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-622 | Windstream PAETEC ITEL, LLC | 2006-06-21 | yes | yes |
| 251-623 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | 2002-01-03 | yes | yes |
| 251-625 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-626 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-631 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-633 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-634 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-635 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-638 | TELEPAK NETWORKS, INC. - AL | – | no | yes |
| 251-639 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-643 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-644 | T-Mobile METROPCS, INC. | 2006-02-23 | yes | yes |
| 251-645 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-648 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | – | yes | yes |
| 251-649 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-650 | Lumen LEVEL 3 COMMUNICATIONS, LLC - AL | – | yes | yes |
| 251-652 | Lumen LEVEL 3 TELECOM OF ALABAMA, LLC - AL | – | yes | yes |
| 251-653 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-654 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-656 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2001-01-03 | no | yes |
| 251-660 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-661 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-662 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-665 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-666 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-675 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-679 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-680 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-689 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-690 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-694 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-706 | Windstream PAETEC ITEL, LLC | 2001-02-26 | yes | yes |
| 251-709 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-721 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | yes | yes |
| 251-724 | FRACTEL, LLC | 2020-09-23 | yes | yes |
| 251-725 | Comcast COMCAST IP PHONE, LLC | 2007-06-26 | yes | yes |
| 251-751 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 251-753 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | – | no | yes |
| 251-767 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | – | no | yes |
| 251-770 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 251-776 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 251-786 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | 2001-08-24 | yes | yes |
| 251-799 | HD CARRIER LLC | 2025-04-23 | yes | yes |
| 251-800 | Onvoy ONVOY, LLC - AL | 2015-08-17 | yes | yes |
| 251-802 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2001-06-27 | no | yes |
| 251-888 | Onvoy ONVOY, LLC - AL | 2014-10-03 | yes | yes |
| 251-895 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2002-01-10 | yes | yes |
| 251-901 | Charter ONVOY SPECTRUM, LLC | 2021-04-14 | yes | yes |
| 251-910 | Onvoy ONVOY, LLC - AL | 2020-12-21 | yes | yes |
| 251-930 | T-Mobile METROPCS, INC. | 2016-05-09 | yes | yes |
| 251-998 | TERRA NOVA TELECOM INC. | 2025-06-24 | yes | yes |
| 251-999 | Onvoy ONVOY, LLC - AL | 2015-02-23 | 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 |
|---|---|---|---|
| BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | AT&T | 71 | 30.5% |
| NEW CINGULAR WIRELESS PCS, LLC - GA | AT&T | 40 | 17.2% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | Verizon | 21 | 9% |
| ONVOY, LLC - AL | Onvoy | 14 | 6% |
| ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | – | 13 | 5.6% |
| PAETEC ITEL, LLC | Windstream | 8 | 3.4% |
| LEVEL 3 COMMUNICATIONS, LLC - AL | Lumen | 7 | 3% |
| TELEPAK NETWORKS, INC. - AL | – | 7 | 3% |
| METROPCS, INC. | T-Mobile | 7 | 3% |
| SPOK, INC. | Spok | 6 | 2.6% |
| FRACTEL, LLC | – | 3 | 1.3% |
| BANDWIDTH.COM CLEC, LLC - AL | Bandwidth | 2 | 0.9% |
| NUSO, LLC | – | 2 | 0.9% |
| COMCAST IP PHONE, LLC | Comcast | 2 | 0.9% |
| SOUTHERN COMMUNICATIONS SERVICES, INC. | – | 2 | 0.9% |
| CELLULAR SOUTH, INC. | – | 2 | 0.9% |
| ONVOY SPECTRUM, LLC | Charter | 2 | 0.9% |
| LEVEL 3 TELECOM OF ALABAMA, LLC - AL | Lumen | 2 | 0.9% |
| COMMIO, LLC | – | 2 | 0.9% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - AL | AT&T | 2 | 0.9% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 0.4% |
| VONAGE AMERICA LLC | Vonage | 1 | 0.4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL | Verizon | 1 | 0.4% |
| PINE BELT BROADCASTING DBA PINE BELT TEL COMP SVCS | – | 1 | 0.4% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 1 | 0.4% |
| TELNYX LLC | Telnyx | 1 | 0.4% |
| INTRADO COMMUNICATIONS LLC | – | 1 | 0.4% |
| CSC WIRELESS, LLC | – | 1 | 0.4% |
| AT&T ENTERPRISES, LLC | AT&T | 1 | 0.4% |
| AT&T - LOCAL | AT&T | 1 | 0.4% |
| IP HORIZON LLC | – | 1 | 0.4% |
| AIRUS, INC. - AL | – | 1 | 0.4% |
| TWILIO INTERNATIONAL, INC. | Twilio | 1 | 0.4% |
| WAVENATION, LLC | – | 1 | 0.4% |
| WIDE VOICE, LLC - AL | – | 1 | 0.4% |
| EXIANT COMMUNICATIONS LLC | – | 1 | 0.4% |
| HD CARRIER LLC | – | 1 | 0.4% |
| TERRA NOVA TELECOM INC. | – | 1 | 0.4% |
Frequently asked
Which prefixes belong to MOBILE in area code 251?
233 blocks: 205, 206, 208, 209, 214, 217, 219, 220, 221, 222, 232, 234 and 221 more, all listed in the table above.
Which carriers have numbers in MOBILE?
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (71 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (40 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL (21 blocks), ONVOY, LLC - AL (14 blocks), ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC (13 blocks), PAETEC ITEL, LLC (8 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is MOBILE 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.