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

HSTNSUBURB prefixes in area code 346

NANPA records 70 assigned NXX blocks to rate center HSTNSUBURB in area code 346, 9.3% of the 752 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. 24 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - IL (15), AERIAL COMMUNICATIONS, INC. (10), COMCAST IP PHONE, LLC (6). The earliest assignment on record here is 2014-01-15 and the most recent 2026-07-24. 70 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 281, 713, 832 – overlay codes cover the same geography, so a rate center is served by all of them.

70 assigned blocks – 9.3% of 346
24 holders of record
70 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
346-203 Windstream PAETEC ITEL, LLC 2014-12-16 yes yes
346-207 AT&T SOUTHWESTERN BELL 2014-12-16 yes yes
346-219 Comcast COMCAST IP PHONE, LLC 2015-01-28 yes yes
346-229 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2015-06-22 yes yes
346-252 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX 2016-01-05 yes yes
346-269 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2017-09-07 yes yes
346-275 Onvoy ONVOY, LLC - TX 2017-10-03 yes yes
346-291 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2017-12-26 yes yes
346-297 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2018-03-09 yes yes
346-302 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-06-24 yes yes
346-312 AT&T AT&T ENTERPRISES, LLC 2015-06-24 yes yes
346-313 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-06-24 yes yes
346-340 Onvoy ONVOY, LLC - TX 2015-12-08 yes yes
346-342 Comcast COMCAST IP PHONE, LLC 2018-05-29 yes yes
346-357 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2018-08-21 yes yes
346-374 Vonage VONAGE AMERICA LLC 2018-12-17 yes yes
346-378 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX 2019-01-18 yes yes
346-381 VoIP Innovations VOIP INNOVATIONS, LLC 2019-01-24 yes yes
346-400 Onvoy ONVOY, LLC - TX 2015-03-26 yes yes
346-409 Comcast COMCAST IP PHONE, LLC 2019-12-24 yes yes
346-410 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2016-05-20 yes yes
346-415 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2019-12-23 yes yes
346-422 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2020-02-11 yes yes
346-432 FRACTEL, LLC 2020-07-09 yes yes
346-433 FRACTEL, LLC 2020-08-19 yes yes
346-434 T-Mobile AERIAL COMMUNICATIONS, INC. 2020-08-28 yes yes
346-437 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX 2020-09-11 yes yes
346-439 Comcast COMCAST IP PHONE, LLC 2020-10-05 yes yes
346-440 Comcast COMCAST IP PHONE, LLC 2020-10-05 yes yes
346-461 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2021-04-19 yes yes
346-471 SKYE TELECOM LLC DBA SKYETEL 2021-05-19 yes yes
346-490 T-Mobile AERIAL COMMUNICATIONS, INC. 2021-08-11 yes yes
346-498 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2021-08-31 yes yes
346-524 HD CARRIER LLC 2021-11-04 yes yes
346-529 FRACTEL, LLC 2019-05-21 yes yes
346-535 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2021-12-20 yes yes
346-557 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2022-05-24 yes yes
346-570 Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 2016-09-06 yes yes
346-575 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2022-07-20 yes yes
346-582 T-Mobile AERIAL COMMUNICATIONS, INC. 2022-08-24 yes yes
346-583 T-Mobile AERIAL COMMUNICATIONS, INC. 2022-08-24 yes yes
346-605 T-Mobile METROPCS, INC. 2022-11-22 yes yes
346-614 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2022-12-21 yes yes
346-627 LEAP TELECOM, LLC 2023-03-09 yes yes
346-635 Comcast COMCAST IP PHONE, LLC 2023-03-10 yes yes
346-639 TON80 COMMUNICATIONS, LLC 2022-01-10 yes yes
346-642 FIVE9, INC. 2023-03-16 yes yes
346-659 FIVE9, INC. 2023-05-18 yes yes
346-673 T-Mobile AERIAL COMMUNICATIONS, INC. 2023-06-20 yes yes
346-675 T-Mobile AERIAL COMMUNICATIONS, INC. 2023-06-20 yes yes
346-678 T-Mobile AERIAL COMMUNICATIONS, INC. 2023-06-20 yes yes
346-680 Onvoy ONVOY, LLC - TX 2023-07-11 yes yes
346-693 Dish BOOST SUBSCRIBERCO L.L.C. 2023-09-07 yes yes
346-699 FRACTEL, LLC 2021-05-10 yes yes
346-744 FRACTEL, LLC 2021-07-26 yes yes
346-754 T-Mobile AERIAL COMMUNICATIONS, INC. 2015-06-10 yes yes
346-773 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2016-07-27 yes yes
346-774 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2016-10-06 yes yes
346-776 Onvoy ONVOY, LLC - TX 2024-01-29 yes yes
346-803 T-Mobile AERIAL COMMUNICATIONS, INC. 2015-06-10 yes yes
346-804 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2015-06-22 yes yes
346-822 FRACTEL, LLC 2022-02-01 yes yes
346-846 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2024-11-07 yes yes
346-853 IP HORIZON LLC 2025-02-04 yes yes
346-869 Dish BOOST SUBSCRIBERCO L.L.C. 2025-04-22 yes yes
346-884 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-08-22 yes yes
346-888 FOREMOST TELECOMMUNICATIONS CORPORATION - TX 2014-01-15 yes yes
346-907 T-Mobile AERIAL COMMUNICATIONS, INC. 2016-03-11 yes yes
346-918 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-12-31 yes yes
346-935 Onvoy ONVOY, LLC - TX 2026-07-24 yes no

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
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 15 21.4%
AERIAL COMMUNICATIONS, INC. T-Mobile 10 14.3%
COMCAST IP PHONE, LLC Comcast 6 8.6%
ONVOY, LLC - TX Onvoy 6 8.6%
FRACTEL, LLC – 6 8.6%
BANDWIDTH.COM CLEC, LLC - TX Bandwidth 5 7.1%
TELEPORT COMMUNICATIONS AMERICA, LLC - TX AT&T 3 4.3%
FIVE9, INC. – 2 2.9%
BOOST SUBSCRIBERCO L.L.C. Dish 2 2.9%
PAETEC ITEL, LLC Windstream 1 1.4%
SOUTHWESTERN BELL AT&T 1 1.4%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 1 1.4%
AT&T ENTERPRISES, LLC AT&T 1 1.4%
VONAGE AMERICA LLC Vonage 1 1.4%
VOIP INNOVATIONS, LLC VoIP Innovations 1 1.4%
SKYE TELECOM LLC DBA SKYETEL – 1 1.4%
HD CARRIER LLC – 1 1.4%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 1.4%
LEVEL 3 OF TELECOM OF TEXAS, LLC - TX Lumen 1 1.4%
METROPCS, INC. T-Mobile 1 1.4%
LEAP TELECOM, LLC – 1 1.4%
TON80 COMMUNICATIONS, LLC – 1 1.4%
IP HORIZON LLC – 1 1.4%
FOREMOST TELECOMMUNICATIONS CORPORATION - TX – 1 1.4%

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 HSTNSUBURB in area code 346?

70 blocks: 203, 207, 219, 229, 252, 269, 275, 291, 297, 302, 312, 313 and 58 more, all listed in the table above.

Which carriers have numbers in HSTNSUBURB?

NEW CINGULAR WIRELESS PCS, LLC - IL (15 blocks), AERIAL COMMUNICATIONS, INC. (10 blocks), COMCAST IP PHONE, LLC (6 blocks), ONVOY, LLC - TX (6 blocks), FRACTEL, LLC (6 blocks), BANDWIDTH.COM CLEC, LLC - TX (5 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is HSTNSUBURB 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 346

All 752 prefixes in 346