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

DEL RIO prefixes in area code 830

NANPA records 31 assigned NXX blocks to rate center DEL RIO in area code 830, 6.2% of the 496 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. 11 holders hold those blocks, the largest being STPCS JOINT VENTURE, LLC (9), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (8), NEW CINGULAR WIRELESS PCS, LLC - IL (3). The earliest assignment on record here is 2001-06-20 and the most recent 2022-11-07. 25 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

31 assigned blocks – 6.2% of 830
11 holders of record
25 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
830-212 STPCS JOINT VENTURE, LLC 2013-01-11 yes yes
830-245 STPCS JOINT VENTURE, LLC 2022-06-28 yes yes
830-273 STPCS JOINT VENTURE, LLC 2020-11-11 yes yes
830-282 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2011-05-24 yes yes
830-290 Peerless PEERLESS NETWORK OF TEXAS, LLC - TX 2002-12-12 yes yes
830-298 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
830-306 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
830-308 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2014-07-11 yes yes
830-309 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2014-07-15 yes yes
830-313 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
830-320 Onvoy ONVOY, LLC - TX – yes yes
830-344 STPCS JOINT VENTURE, LLC 2021-08-25 yes yes
830-350 STPCS JOINT VENTURE, LLC 2021-12-15 yes yes
830-354 Onvoy ONVOY, LLC - TX 2021-10-28 yes yes
830-356 STPCS JOINT VENTURE, LLC 2020-05-26 yes yes
830-422 T-Mobile METROPCS, INC. 2002-01-14 yes yes
830-453 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2022-11-07 yes yes
830-461 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2001-06-20 yes yes
830-469 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
830-488 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2002-06-17 yes yes
830-507 STPCS JOINT VENTURE, LLC 2016-12-08 yes yes
830-699 FRACTEL, LLC 2020-11-30 yes yes
830-703 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
830-719 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
830-734 STPCS JOINT VENTURE, LLC – yes yes
830-765 STPCS JOINT VENTURE, LLC – yes yes
830-768 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
830-774 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
830-775 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
830-778 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
830-830 Onvoy ONVOY, LLC - TX 2022-09-28 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 – 9 29%
FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS Frontier 8 25.8%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 3 9.7%
ONVOY, LLC - TX Onvoy 3 9.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 2 6.5%
BANDWIDTH.COM CLEC, LLC - TX Bandwidth 1 3.2%
PEERLESS NETWORK OF TEXAS, LLC - TX Peerless 1 3.2%
METROPCS, INC. T-Mobile 1 3.2%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 1 3.2%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 3.2%
FRACTEL, LLC – 1 3.2%

Frequently asked

Which prefixes belong to DEL RIO in area code 830?

31 blocks: 212, 245, 273, 282, 290, 298, 306, 308, 309, 313, 320, 344 and 19 more, all listed in the table above.

Which carriers have numbers in DEL RIO?

STPCS JOINT VENTURE, LLC (9 blocks), FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (8 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), ONVOY, LLC - TX (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (2 blocks), BANDWIDTH.COM CLEC, 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 DEL RIO 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 830

All 496 prefixes in 830