MERCEDES prefixes in area code 956
NANPA records 10 assigned NXX blocks to rate center MERCEDES in area code 956, 1.4% of the 735 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. 6 holders hold those blocks, the largest being ONVOY, LLC - TX (3), SOUTHWESTERN BELL (3), SMARTCOM TELEPHONE, LLC (1). The earliest assignment on record here is 2003-06-02 and the most recent 2026-03-24. 7 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 |
|---|---|---|---|---|
| 956-260 | SMARTCOM TELEPHONE, LLC | 2003-06-02 | no | yes |
| 956-294 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 2010-01-11 | yes | yes |
| 956-474 | Onvoy ONVOY, LLC - TX | 2019-07-25 | yes | yes |
| 956-514 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-565 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 956-634 | Onvoy ONVOY, LLC - TX | 2021-04-12 | yes | yes |
| 956-741 | Onvoy ONVOY, LLC - TX | 2023-08-22 | yes | yes |
| 956-825 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 956-876 | STPCS JOINT VENTURE, LLC | 2026-03-24 | yes | yes |
| 956-903 | Charter TWC IP ENABLED SERVICES, LLC | 2004-09-30 | 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 |
|---|---|---|---|
| ONVOY, LLC - TX | Onvoy | 3 | 30% |
| SOUTHWESTERN BELL | AT&T | 3 | 30% |
| SMARTCOM TELEPHONE, LLC | – | 1 | 10% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TX | AT&T | 1 | 10% |
| STPCS JOINT VENTURE, LLC | – | 1 | 10% |
| TWC IP ENABLED SERVICES, LLC | Charter | 1 | 10% |
Frequently asked
Which prefixes belong to MERCEDES in area code 956?
10 blocks: 260, 294, 474, 514, 565, 634, 741, 825, 876, 903. The table above gives the holder of each.
Which carriers have numbers in MERCEDES?
ONVOY, LLC - TX (3 blocks), SOUTHWESTERN BELL (3 blocks), SMARTCOM TELEPHONE, LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - TX (1 block), STPCS JOINT VENTURE, LLC (1 block), TWC IP ENABLED SERVICES, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is MERCEDES 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.