SOCORRO prefixes in area code 575
NANPA records 10 assigned NXX blocks to rate center SOCORRO in area code 575, 1.9% of the 521 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. 7 holders hold those blocks, the largest being ONVOY, LLC - NM (2), T-MOBILE USA, INC. (2), QWEST CORPORATION (2). The earliest assignment on record here is 2003-06-03 and the most recent 2025-11-14. 8 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 575-272 | Onvoy ONVOY, LLC - NM | 2009-07-14 | yes | yes |
| 575-322 | Onvoy ONVOY, LLC - NM | 2007-03-13 | yes | yes |
| 575-349 | TDS TDS METROCOM, LLC | 2025-11-14 | yes | yes |
| 575-418 | T-Mobile T-MOBILE USA, INC. | 2003-06-03 | yes | yes |
| 575-517 | T-Mobile T-MOBILE USA, INC. | 2005-11-29 | yes | yes |
| 575-518 | MESCALERO APACHE TELECOM, INC. - NM | 2005-12-12 | yes | yes |
| 575-747 | Peerless PEERLESS NETWORK OF NEW MEXICO, LLC - NM | – | yes | yes |
| 575-757 | TON80 COMMUNICATIONS, LLC | 2022-03-04 | yes | yes |
| 575-835 | Lumen QWEST CORPORATION | – | no | yes |
| 575-838 | Lumen QWEST CORPORATION | – | no | 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 |
|---|---|---|---|
| ONVOY, LLC - NM | Onvoy | 2 | 20% |
| T-MOBILE USA, INC. | T-Mobile | 2 | 20% |
| QWEST CORPORATION | Lumen | 2 | 20% |
| TDS METROCOM, LLC | TDS | 1 | 10% |
| MESCALERO APACHE TELECOM, INC. - NM | – | 1 | 10% |
| PEERLESS NETWORK OF NEW MEXICO, LLC - NM | Peerless | 1 | 10% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 10% |
Frequently asked
Which prefixes belong to SOCORRO in area code 575?
10 blocks: 272, 322, 349, 418, 517, 518, 747, 757, 835, 838. The table above gives the holder of each.
Which carriers have numbers in SOCORRO?
ONVOY, LLC - NM (2 blocks), T-MOBILE USA, INC. (2 blocks), QWEST CORPORATION (2 blocks), TDS METROCOM, LLC (1 block), MESCALERO APACHE TELECOM, INC. - NM (1 block), PEERLESS NETWORK OF NEW MEXICO, LLC - NM (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is SOCORRO 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.