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

HUMBLE prefixes in area code 346

NANPA records 18 assigned NXX blocks to rate center HUMBLE in area code 346, 2.4% 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. 8 holders hold those blocks, the largest being ONVOY, LLC - TX (5), AERIAL COMMUNICATIONS, INC. (5), NEW CINGULAR WIRELESS PCS, LLC - IL (2). The earliest assignment on record here is 2015-03-25 and the most recent 2026-04-28. 18 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, 832 – overlay codes cover the same geography, so a rate center is served by all of them.

18 assigned blocks – 2.4% of 346
8 holders of record
18 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
346-323 Brightspeed BRIGHTSPEED OF TEXAS, INC. 2016-03-30 yes yes
346-345 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2018-06-27 yes yes
346-470 Vonage VONAGE AMERICA LLC 2021-05-06 yes yes
346-477 FRACTEL, LLC 2020-07-09 yes yes
346-522 Onvoy ONVOY, LLC - TX 2021-10-28 yes yes
346-559 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2022-06-21 yes yes
346-596 Charter ONVOY SPECTRUM, LLC 2022-10-14 yes yes
346-600 Onvoy ONVOY, LLC - TX 2015-03-25 yes yes
346-616 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2015-12-22 yes yes
346-662 Onvoy ONVOY, LLC - TX 2022-12-29 yes yes
346-685 Onvoy ONVOY, LLC - TX 2023-08-01 yes yes
346-791 Onvoy ONVOY, LLC - TX 2024-03-28 yes yes
346-805 T-Mobile AERIAL COMMUNICATIONS, INC. 2024-08-28 yes yes
346-819 T-Mobile AERIAL COMMUNICATIONS, INC. 2024-12-26 yes yes
346-842 FRACTEL, LLC 2019-05-21 yes yes
346-873 T-Mobile AERIAL COMMUNICATIONS, INC. 2025-06-02 yes yes
346-896 T-Mobile AERIAL COMMUNICATIONS, INC. 2025-10-27 yes yes
346-986 T-Mobile AERIAL COMMUNICATIONS, INC. 2026-04-28 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
ONVOY, LLC - TX Onvoy 5 27.8%
AERIAL COMMUNICATIONS, INC. T-Mobile 5 27.8%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 2 11.1%
FRACTEL, LLC – 2 11.1%
BRIGHTSPEED OF TEXAS, INC. Brightspeed 1 5.6%
VONAGE AMERICA LLC Vonage 1 5.6%
ONVOY SPECTRUM, LLC Charter 1 5.6%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 1 5.6%

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 HUMBLE in area code 346?

18 blocks: 323, 345, 470, 477, 522, 559, 596, 600, 616, 662, 685, 791 and 6 more, all listed in the table above.

Which carriers have numbers in HUMBLE?

ONVOY, LLC - TX (5 blocks), AERIAL COMMUNICATIONS, INC. (5 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), FRACTEL, LLC (2 blocks), BRIGHTSPEED OF TEXAS, INC. (1 block), VONAGE AMERICA 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 HUMBLE 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