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

ALTUS prefixes in area code 580

NANPA records 14 assigned NXX blocks to rate center ALTUS in area code 580, 1.9% of the 741 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. 7 holders hold those blocks, the largest being SOUTHWESTERN BELL (5), T-MOBILE USA, INC. (3), UNITED STATES CELLULAR - OK (2). The earliest assignment on record here is 2001-03-23 and the most recent 2025-06-16. 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 code 479 – overlay codes cover the same geography, so a rate center is served by all of them.

14 assigned blocks – 1.9% of 580
7 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
580-301 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK – yes yes
580-318 UNITED STATES CELLULAR - OK 2001-03-23 yes yes
580-379 AT&T SOUTHWESTERN BELL – yes yes
580-471 UNITED STATES CELLULAR - OK – yes yes
580-477 AT&T SOUTHWESTERN BELL – no yes
580-480 AT&T SOUTHWESTERN BELL – yes yes
580-481 AT&T SOUTHWESTERN BELL – yes yes
580-482 AT&T SOUTHWESTERN BELL – yes yes
580-636 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-06-16 yes yes
580-643 T-Mobile T-MOBILE USA, INC. 2019-04-08 yes yes
580-649 T-Mobile T-MOBILE USA, INC. 2002-05-20 yes yes
580-880 TON80 COMMUNICATIONS, LLC 2022-03-17 yes yes
580-954 AT&T TELEPORT COMMUNICATIONS AMERICA OK - LLC 2016-01-27 yes yes
580-970 T-Mobile T-MOBILE USA, INC. 2017-08-10 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
SOUTHWESTERN BELL AT&T 5 35.7%
T-MOBILE USA, INC. T-Mobile 3 21.4%
UNITED STATES CELLULAR - OK – 2 14.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK Verizon 1 7.1%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 7.1%
TON80 COMMUNICATIONS, LLC – 1 7.1%
TELEPORT COMMUNICATIONS AMERICA OK - LLC AT&T 1 7.1%

Frequently asked

Which prefixes belong to ALTUS in area code 580?

14 blocks: 301, 318, 379, 471, 477, 480, 481, 482, 636, 643, 649, 880 and 2 more, all listed in the table above.

Which carriers have numbers in ALTUS?

SOUTHWESTERN BELL (5 blocks), T-MOBILE USA, INC. (3 blocks), UNITED STATES CELLULAR - OK (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), TON80 COMMUNICATIONS, 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 ALTUS 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 580

All 741 prefixes in 580