NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

ROMA prefixes in area code 956

NANPA records 11 assigned NXX blocks to rate center ROMA in area code 956, 1.5% 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 STPCS JOINT VENTURE, LLC (4), NEW CINGULAR WIRELESS PCS, LLC - IL (2), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (2). The earliest assignment on record here is 2001-06-18 and the most recent 2021-01-08. 10 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

11 assigned blocks – 1.5% of 956
6 holders of record
10 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
956-208 STPCS JOINT VENTURE, LLC 2002-09-25 yes yes
956-224 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2004-04-30 yes yes
956-297 VTX COMMUNICATIONS, LLC 2017-04-14 yes yes
956-298 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2003-12-30 no yes
956-353 STPCS JOINT VENTURE, LLC 2002-01-16 yes yes
956-422 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2013-06-28 yes yes
956-437 STPCS JOINT VENTURE, LLC 2001-06-18 yes yes
956-613 Onvoy ONVOY, LLC - TX 2021-01-08 yes yes
956-844 STPCS JOINT VENTURE, LLC – yes yes
956-847 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
956-849 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – 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

HolderBrandBlocksShare here
STPCS JOINT VENTURE, LLC – 4 36.4%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 2 18.2%
FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS Frontier 2 18.2%
VTX COMMUNICATIONS, LLC – 1 9.1%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 1 9.1%
ONVOY, LLC - TX Onvoy 1 9.1%

Frequently asked

Which prefixes belong to ROMA in area code 956?

11 blocks: 208, 224, 297, 298, 353, 422, 437, 613, 844, 847, 849. The table above gives the holder of each.

Which carriers have numbers in ROMA?

STPCS JOINT VENTURE, LLC (4 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (2 blocks), VTX COMMUNICATIONS, LLC (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (1 block), ONVOY, LLC - TX (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is ROMA 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.

Other rate centers in 956

All 735 prefixes in 956