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

JOHNSTMLKN prefixes in area code 970

NANPA records 8 assigned NXX blocks to rate center JOHNSTMLKN in area code 970, 1.0% 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 NEW CINGULAR WIRELESS PCS, LLC (2), TELEPORT COMMUNICATIONS AMERICA, LLC - CO (1), PAETEC ITEL, LLC (1). The earliest assignment on record here is 2004-10-27 and the most recent 2024-12-20. 8 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

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

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
970-408 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CO 2014-07-15 yes yes
970-578 Windstream PAETEC ITEL, LLC 2010-03-29 yes yes
970-587 Lumen QWEST CORPORATION – yes yes
970-602 Comcast COMCAST IP PHONE, LLC 2023-04-06 yes yes
970-634 AT&T NEW CINGULAR WIRELESS PCS, LLC 2019-06-11 yes yes
970-660 Lumen LEVEL 3 COMMUNICATIONS, LLC - CO 2004-10-27 yes yes
970-806 COMMIO, LLC 2021-09-29 yes yes
970-957 AT&T NEW CINGULAR WIRELESS PCS, LLC 2024-12-20 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
NEW CINGULAR WIRELESS PCS, LLC AT&T 2 25%
TELEPORT COMMUNICATIONS AMERICA, LLC - CO AT&T 1 12.5%
PAETEC ITEL, LLC Windstream 1 12.5%
QWEST CORPORATION Lumen 1 12.5%
COMCAST IP PHONE, LLC Comcast 1 12.5%
LEVEL 3 COMMUNICATIONS, LLC - CO Lumen 1 12.5%
COMMIO, LLC – 1 12.5%

Frequently asked

Which prefixes belong to JOHNSTMLKN in area code 970?

8 blocks: 408, 578, 587, 602, 634, 660, 806, 957. The table above gives the holder of each.

Which carriers have numbers in JOHNSTMLKN?

NEW CINGULAR WIRELESS PCS, LLC (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CO (1 block), PAETEC ITEL, LLC (1 block), QWEST CORPORATION (1 block), COMCAST IP PHONE, LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - CO (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is JOHNSTMLKN 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