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

DURANGO prefixes in area code 970

NANPA records 29 assigned NXX blocks to rate center DURANGO in area code 970, 3.7% 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. 9 holders hold those blocks, the largest being T-MOBILE USA, INC. (8), QWEST CORPORATION (7), NEW CINGULAR WIRELESS PCS, LLC (5). The earliest assignment on record here is 2001-04-30 and the most recent 2025-12-03. 20 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 748 – overlay codes cover the same geography, so a rate center is served by all of them.

29 assigned blocks – 3.7% of 970
9 holders of record
20 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
970-247 Lumen QWEST CORPORATION – no yes
970-259 Lumen QWEST CORPORATION – no yes
970-317 AT&T NEW CINGULAR WIRELESS PCS, LLC 2010-10-11 yes yes
970-335 Lumen QWEST CORPORATION – yes yes
970-375 Lumen QWEST CORPORATION – no yes
970-382 Lumen QWEST CORPORATION – yes yes
970-385 Lumen QWEST CORPORATION – no yes
970-403 ZIPPYTECH INCORPORATED 2005-10-20 yes yes
970-422 Lumen LEVEL 3 COMMUNICATIONS, LLC - CO 2002-04-08 yes yes
970-426 T-Mobile T-MOBILE USA, INC. – yes yes
970-459 Lumen LEVEL 3 COMMUNICATIONS, LLC - CO 2002-05-02 yes yes
970-501 T-Mobile T-MOBILE USA, INC. 2021-02-16 yes yes
970-508 Onvoy ONVOY, LLC - CO 2005-03-01 yes yes
970-559 T-Mobile T-MOBILE USA, INC. 2022-11-23 yes yes
970-637 T-Mobile T-MOBILE USA, INC. 2024-05-23 yes yes
970-749 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
970-759 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
970-764 Lumen QWEST CORPORATION 2002-06-17 yes yes
970-769 AT&T NEW CINGULAR WIRELESS PCS, LLC 2002-10-29 no yes
970-779 T-Mobile T-MOBILE USA, INC. 2003-01-21 yes yes
970-799 AT&T NEW CINGULAR WIRELESS PCS, LLC 2001-04-30 yes yes
970-814 T-Mobile T-MOBILE USA, INC. 2022-02-04 yes yes
970-828 FASTTRACK COMMUNICATIONS, INC. - CO 2006-05-12 no yes
970-844 T-Mobile T-MOBILE USA, INC. 2016-11-23 yes yes
970-863 COMMIO, LLC 2024-03-12 yes yes
970-880 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO – yes yes
970-903 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO – yes yes
970-917 T-Mobile T-MOBILE USA, INC. 2025-12-03 yes yes
970-946 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO – no 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
T-MOBILE USA, INC. T-Mobile 8 27.6%
QWEST CORPORATION Lumen 7 24.1%
NEW CINGULAR WIRELESS PCS, LLC AT&T 5 17.2%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO Verizon 3 10.3%
LEVEL 3 COMMUNICATIONS, LLC - CO Lumen 2 6.9%
ZIPPYTECH INCORPORATED – 1 3.4%
ONVOY, LLC - CO Onvoy 1 3.4%
FASTTRACK COMMUNICATIONS, INC. - CO – 1 3.4%
COMMIO, LLC – 1 3.4%

Frequently asked

Which prefixes belong to DURANGO in area code 970?

29 blocks: 247, 259, 317, 335, 375, 382, 385, 403, 422, 426, 459, 501 and 17 more, all listed in the table above.

Which carriers have numbers in DURANGO?

T-MOBILE USA, INC. (8 blocks), QWEST CORPORATION (7 blocks), NEW CINGULAR WIRELESS PCS, LLC (5 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - CO (2 blocks), ZIPPYTECH INCORPORATED (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is DURANGO 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 970

All 786 prefixes in 970