COLUMBIA prefixes in area code 931
NANPA records 32 assigned NXX blocks to rate center COLUMBIA in area code 931, 5.9% of the 538 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. 12 holders hold those blocks, the largest being BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (7), NEW CINGULAR WIRELESS PCS, LLC - GA (6), LEVEL 3 COMMUNICATIONS, LLC - TN (4). The earliest assignment on record here is 2006-09-15 and the most recent 2026-09-21. 20 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 207, 223, 235, 252 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 931-215 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 931-223 | Windstream PAETEC ITEL, LLC | – | yes | yes |
| 931-286 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | yes | yes |
| 931-328 | Windstream PAETEC ITEL, LLC | – | no | yes |
| 931-334 | T-Mobile METROPCS, INC. | – | yes | yes |
| 931-350 | Bandwidth BANDWIDTH.COM CLEC, LLC - TN | 2021-10-11 | yes | yes |
| 931-353 | Spok SPOK, INC. | – | no | yes |
| 931-374 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TN | – | yes | yes |
| 931-375 | Windstream PAETEC ITEL, LLC | – | no | yes |
| 931-380 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 931-381 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 931-384 | T-Mobile METROPCS, INC. | – | yes | yes |
| 931-388 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 931-398 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | yes | yes |
| 931-416 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | 2023-08-15 | yes | yes |
| 931-446 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | yes | yes |
| 931-460 | Onvoy ONVOY, LLC - TN | 2025-09-04 | yes | yes |
| 931-483 | Onvoy ONVOY, LLC - TN | 2026-09-21 | yes | no |
| 931-490 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 931-505 | T-Mobile POWERTEL NASHVILLE LICENSES, INC. | – | yes | yes |
| 931-540 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 931-548 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TN | – | yes | yes |
| 931-560 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | yes | yes |
| 931-626 | AT&T NEW CINGULAR WIRELESS PCS, LLC - GA | – | no | yes |
| 931-698 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | – | no | yes |
| 931-777 | FRACTEL, LLC | 2019-01-22 | yes | yes |
| 931-797 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | – | no | yes |
| 931-840 | AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | – | no | yes |
| 931-901 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TN | – | yes | yes |
| 931-922 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TN | – | yes | yes |
| 931-981 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 2008-05-01 | yes | yes |
| 931-982 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 2006-09-15 | 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 | 7 | 21.9% |
| NEW CINGULAR WIRELESS PCS, LLC - GA | AT&T | 6 | 18.8% |
| LEVEL 3 COMMUNICATIONS, LLC - TN | Lumen | 4 | 12.5% |
| PAETEC ITEL, LLC | Windstream | 3 | 9.4% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | Verizon | 3 | 9.4% |
| METROPCS, INC. | T-Mobile | 2 | 6.2% |
| ONVOY, LLC - TN | Onvoy | 2 | 6.2% |
| BANDWIDTH.COM CLEC, LLC - TN | Bandwidth | 1 | 3.1% |
| SPOK, INC. | Spok | 1 | 3.1% |
| POWERTEL NASHVILLE LICENSES, INC. | T-Mobile | 1 | 3.1% |
| FRACTEL, LLC | – | 1 | 3.1% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TN | AT&T | 1 | 3.1% |
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 COLUMBIA in area code 931?
32 blocks: 215, 223, 286, 328, 334, 350, 353, 374, 375, 380, 381, 384 and 20 more, all listed in the table above.
Which carriers have numbers in COLUMBIA?
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (7 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (6 blocks), LEVEL 3 COMMUNICATIONS, LLC - TN (4 blocks), PAETEC ITEL, LLC (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN (3 blocks), METROPCS, INC. (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is COLUMBIA 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.