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

BAYTOWN prefixes in area code 281

NANPA records 21 assigned NXX blocks to rate center BAYTOWN in area code 281, 2.7% 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. 5 holders hold those blocks, the largest being FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (14), NEW CINGULAR WIRELESS PCS, LLC - IL (2), AERIAL COMMUNICATIONS, INC. (2). The earliest assignment on record here is 2001-06-20 and the most recent 2020-10-02. 13 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.

21 assigned blocks – 2.7% of 281
5 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
281-420 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
281-421 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
281-422 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
281-424 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
281-425 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
281-427 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
281-428 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
281-515 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2006-05-15 yes yes
281-628 T-Mobile AERIAL COMMUNICATIONS, INC. – yes yes
281-663 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
281-683 T-Mobile AERIAL COMMUNICATIONS, INC. 2001-06-20 yes yes
281-691 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX 2004-03-04 yes yes
281-707 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
281-708 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
281-739 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2006-01-05 yes yes
281-834 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – no yes
281-837 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
281-838 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
281-839 Frontier FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS – yes yes
281-868 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2020-10-02 yes yes
281-917 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2007-04-02 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
FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS Frontier 14 66.7%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 2 9.5%
AERIAL COMMUNICATIONS, INC. T-Mobile 2 9.5%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 2 9.5%
TELEPORT COMMUNICATIONS AMERICA, LLC - TX AT&T 1 4.8%

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 BAYTOWN in area code 281?

21 blocks: 420, 421, 422, 424, 425, 427, 428, 515, 628, 663, 683, 691 and 9 more, all listed in the table above.

Which carriers have numbers in BAYTOWN?

FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS (14 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), AERIAL COMMUNICATIONS, INC. (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (2 blocks), TELEPORT COMMUNICATIONS AMERICA, 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 BAYTOWN 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 281

All 786 prefixes in 281