SUGAR LAND prefixes in area code 346
NANPA records 22 assigned NXX blocks to rate center SUGAR LAND in area code 346, 2.9% 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. 13 holders hold those blocks, the largest being METROPCS, INC. (4), ONVOY, LLC - TX (4), NEW CINGULAR WIRELESS PCS, LLC - IL (3). The earliest assignment on record here is 2015-03-26 and the most recent 2025-09-16. 21 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.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 346-279 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 2017-10-18 | yes | yes |
| 346-309 | Comcast COMCAST IP PHONE, LLC | 2015-09-28 | yes | yes |
| 346-343 | Windstream WINDSTREAM SUGAR LAND, LLC | 2018-05-17 | yes | yes |
| 346-350 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2018-07-19 | yes | yes |
| 346-368 | ETS TELEPHONE COMPANY, INC. | 2016-03-03 | yes | yes |
| 346-375 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2018-12-20 | yes | yes |
| 346-391 | T-Mobile METROPCS, INC. | 2019-08-19 | yes | yes |
| 346-420 | T-Mobile METROPCS, INC. | 2017-03-28 | yes | yes |
| 346-450 | T-Mobile METROPCS, INC. | 2020-10-28 | yes | yes |
| 346-521 | Onvoy ONVOY, LLC - TX | 2021-11-02 | yes | yes |
| 346-626 | TON80 COMMUNICATIONS, LLC | 2022-03-24 | yes | yes |
| 346-681 | Onvoy ONVOY, LLC - TX | 2023-07-11 | yes | yes |
| 346-755 | FRACTEL, LLC | 2021-08-11 | yes | yes |
| 346-779 | T-Mobile METROPCS, INC. | 2016-10-11 | yes | yes |
| 346-829 | AT&T AT&T ENTERPRISES, LLC | 2024-08-13 | yes | yes |
| 346-836 | SHELCOMM | 2024-09-26 | no | yes |
| 346-859 | Onvoy ONVOY, LLC - TX | 2025-02-13 | yes | yes |
| 346-874 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 2016-10-19 | yes | yes |
| 346-882 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2025-08-19 | yes | yes |
| 346-891 | Charter ONVOY SPECTRUM, LLC | 2025-09-16 | yes | yes |
| 346-900 | Onvoy ONVOY, LLC - TX | 2015-03-26 | yes | yes |
| 346-901 | Lumen LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 2015-04-29 | 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 |
|---|---|---|---|
| METROPCS, INC. | T-Mobile | 4 | 18.2% |
| ONVOY, LLC - TX | Onvoy | 4 | 18.2% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 3 | 13.6% |
| LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | Lumen | 2 | 9.1% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | Verizon | 1 | 4.5% |
| COMCAST IP PHONE, LLC | Comcast | 1 | 4.5% |
| WINDSTREAM SUGAR LAND, LLC | Windstream | 1 | 4.5% |
| ETS TELEPHONE COMPANY, INC. | – | 1 | 4.5% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 4.5% |
| FRACTEL, LLC | – | 1 | 4.5% |
| AT&T ENTERPRISES, LLC | AT&T | 1 | 4.5% |
| SHELCOMM | – | 1 | 4.5% |
| ONVOY SPECTRUM, LLC | Charter | 1 | 4.5% |
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 SUGAR LAND in area code 346?
22 blocks: 279, 309, 343, 350, 368, 375, 391, 420, 450, 521, 626, 681 and 10 more, all listed in the table above.
Which carriers have numbers in SUGAR LAND?
METROPCS, INC. (4 blocks), ONVOY, LLC - TX (4 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), LEVEL 3 OF TELECOM OF TEXAS, LLC - TX (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX (1 block), COMCAST IP PHONE, 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 SUGAR LAND 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.