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

GILCREST prefixes in area code 970

NANPA records 3 assigned NXX blocks to rate center GILCREST in area code 970, 0.4% 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. 2 holders hold those blocks, the largest being ONVOY, LLC - CO (2), QWEST CORPORATION (1). The earliest assignment on record here is 2016-03-01 and the most recent 2016-03-01. 3 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.

3 assigned blocks – 0.4% of 970
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
970-680 Onvoy ONVOY, LLC - CO – yes yes
970-737 Lumen QWEST CORPORATION – yes yes
970-772 Onvoy ONVOY, LLC - CO 2016-03-01 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
ONVOY, LLC - CO Onvoy 2 66.7%
QWEST CORPORATION Lumen 1 33.3%

Frequently asked

Which prefixes belong to GILCREST in area code 970?

3 blocks: 680, 737, 772. The table above gives the holder of each.

Which carriers have numbers in GILCREST?

ONVOY, LLC - CO (2 blocks), QWEST CORPORATION (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is GILCREST 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