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

DINOSAUR prefixes in area code 970

NANPA records 4 assigned NXX blocks to rate center DINOSAUR in area code 970, 0.5% 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. 4 holders hold those blocks, the largest being CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK (1), ONVOY, LLC - CO (1), UNION TELEPHONE COMPANY (1). The earliest assignment on record here is 2007-07-10 and the most recent 2021-08-13. 2 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.5% of 970
4 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
970-374 Lumen CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK – no yes
970-548 Onvoy ONVOY, LLC - CO 2007-07-10 yes yes
970-574 UNION TELEPHONE COMPANY – no yes
970-933 AT&T NEW CINGULAR WIRELESS PCS, LLC 2021-08-13 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
CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK Lumen 1 25%
ONVOY, LLC - CO Onvoy 1 25%
UNION TELEPHONE COMPANY – 1 25%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 25%

Frequently asked

Which prefixes belong to DINOSAUR in area code 970?

4 blocks: 374, 548, 574, 933. The table above gives the holder of each.

Which carriers have numbers in DINOSAUR?

CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK (1 block), ONVOY, LLC - CO (1 block), UNION TELEPHONE COMPANY (1 block), NEW CINGULAR WIRELESS PCS, 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 DINOSAUR 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