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

CENTER prefixes in area code 936

NANPA records 10 assigned NXX blocks to rate center CENTER in area code 936, 2.4% of the 422 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 NEW CINGULAR WIRELESS PCS, LLC - IL (3), SOUTHWESTERN BELL (3), LEVEL 3 COMMUNICATIONS, LLC - TX (2). The earliest assignment on record here is 2002-03-28 and the most recent 2018-04-20. 8 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 270, 402, 573, 605 – overlay codes cover the same geography, so a rate center is served by all of them.

10 assigned blocks – 2.4% of 936
5 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
936-280 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2018-04-20 yes yes
936-332 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2003-05-21 yes yes
936-427 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX – yes yes
936-488 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
936-505 Peerless PEERLESS NETWORK OF TEXAS, LLC - TX 2004-03-08 yes yes
936-572 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – no yes
936-590 AT&T SOUTHWESTERN BELL – yes yes
936-591 AT&T SOUTHWESTERN BELL – yes yes
936-598 AT&T SOUTHWESTERN BELL – no yes
936-657 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2002-03-28 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
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 3 30%
SOUTHWESTERN BELL AT&T 3 30%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 2 20%
BANDWIDTH.COM CLEC, LLC - TX Bandwidth 1 10%
PEERLESS NETWORK OF TEXAS, LLC - TX Peerless 1 10%

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 CENTER in area code 936?

10 blocks: 280, 332, 427, 488, 505, 572, 590, 591, 598, 657. The table above gives the holder of each.

Which carriers have numbers in CENTER?

NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), SOUTHWESTERN BELL (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - TX (2 blocks), BANDWIDTH.COM CLEC, LLC - TX (1 block), PEERLESS NETWORK OF TEXAS, 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 CENTER 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 936

All 422 prefixes in 936