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

VAIL prefixes in area code 970

NANPA records 24 assigned NXX blocks to rate center VAIL in area code 970, 3.1% 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. 7 holders hold those blocks, the largest being QWEST CORPORATION (7), T-MOBILE USA, INC. (6), LEVEL 3 COMMUNICATIONS, LLC - CO (3). The earliest assignment on record here is 2001-04-16 and the most recent 2003-11-21. 15 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 712 – overlay codes cover the same geography, so a rate center is served by all of them.

24 assigned blocks – 3.1% of 970
7 holders of record
15 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
970-306 Lumen LEVEL 3 COMMUNICATIONS, LLC - CO – yes yes
970-331 T-Mobile T-MOBILE USA, INC. – yes yes
970-343 Onvoy ONVOY, LLC - CO 2002-01-07 yes yes
970-376 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
970-390 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
970-393 T-Mobile T-MOBILE USA, INC. 2001-04-16 yes yes
970-401 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO – yes yes
970-445 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO – yes yes
970-470 T-Mobile T-MOBILE USA, INC. – yes yes
970-471 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO – yes yes
970-476 Lumen QWEST CORPORATION – no yes
970-477 Lumen QWEST CORPORATION – yes yes
970-479 Lumen QWEST CORPORATION – no yes
970-688 Lumen LEVEL 3 COMMUNICATIONS, LLC - CO 2002-07-18 yes yes
970-748 Lumen QWEST CORPORATION – no yes
970-754 SAN ISABEL TELECOM, INC. - CO 2002-08-09 no yes
970-763 Lumen LEVEL 3 COMMUNICATIONS, LLC - CO 2002-06-17 yes yes
970-790 SAN ISABEL TELECOM, INC. - CO 2003-11-21 no yes
970-827 Lumen QWEST CORPORATION – yes yes
970-845 Lumen QWEST CORPORATION – no yes
970-904 T-Mobile T-MOBILE USA, INC. – yes yes
970-914 T-Mobile T-MOBILE USA, INC. – yes yes
970-949 Lumen QWEST CORPORATION – no yes
970-977 T-Mobile T-MOBILE USA, INC. – 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
QWEST CORPORATION Lumen 7 29.2%
T-MOBILE USA, INC. T-Mobile 6 25%
LEVEL 3 COMMUNICATIONS, LLC - CO Lumen 3 12.5%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO Verizon 3 12.5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 2 8.3%
SAN ISABEL TELECOM, INC. - CO – 2 8.3%
ONVOY, LLC - CO Onvoy 1 4.2%

Frequently asked

Which prefixes belong to VAIL in area code 970?

24 blocks: 306, 331, 343, 376, 390, 393, 401, 445, 470, 471, 476, 477 and 12 more, all listed in the table above.

Which carriers have numbers in VAIL?

QWEST CORPORATION (7 blocks), T-MOBILE USA, INC. (6 blocks), LEVEL 3 COMMUNICATIONS, LLC - CO (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO (3 blocks), NEW CINGULAR WIRELESS PCS, LLC (2 blocks), SAN ISABEL TELECOM, INC. - CO (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is VAIL 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