TOMBALL prefixes in area code 281
NANPA records 19 assigned NXX blocks to rate center TOMBALL in area code 281, 2.4% of the 786 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. 4 holders hold those blocks, the largest being SOUTHWESTERN BELL (16), TELEPORT COMMUNICATIONS AMERICA, LLC - TX (1), LEVEL 3 COMMUNICATIONS, LLC - TX (1). 12 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 346, 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 |
|---|---|---|---|---|
| 281-205 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX | – | yes | yes |
| 281-251 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 281-255 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 281-257 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 281-290 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 281-320 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 281-351 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 281-357 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 281-370 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 281-374 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 281-376 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 281-378 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 281-379 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 281-401 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 281-516 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 281-547 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | – | yes | yes |
| 281-655 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 281-803 | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | – | yes | yes |
| 281-826 | AT&T SOUTHWESTERN BELL | – | 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 |
|---|---|---|---|
| SOUTHWESTERN BELL | AT&T | 16 | 84.2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TX | AT&T | 1 | 5.3% |
| LEVEL 3 COMMUNICATIONS, LLC - TX | Lumen | 1 | 5.3% |
| GRANDE COMMUNICATIONS NETWORKS, INC. - TX | – | 1 | 5.3% |
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 TOMBALL in area code 281?
19 blocks: 205, 251, 255, 257, 290, 320, 351, 357, 370, 374, 376, 378 and 7 more, all listed in the table above.
Which carriers have numbers in TOMBALL?
SOUTHWESTERN BELL (16 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - TX (1 block), LEVEL 3 COMMUNICATIONS, LLC - TX (1 block), GRANDE COMMUNICATIONS NETWORKS, INC. - 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 TOMBALL 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.