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

SHIPROCK prefixes in area code 505

NANPA records 6 assigned NXX blocks to rate center SHIPROCK in area code 505, 0.9% of the 685 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. 3 holders hold those blocks, the largest being SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA (3), NAVAJO COMM CO INC NM DBA NAVAJO COMM CO NM (2), LEVEL 3 COMMUNICATIONS, LLC - NM (1). The earliest assignment on record here is 2002-11-18 and the most recent 2012-04-09. 2 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 0.9% of 505
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
505-354 Lumen LEVEL 3 COMMUNICATIONS, LLC - NM 2012-02-17 yes yes
505-368 NAVAJO COMM CO INC NM DBA NAVAJO COMM CO NM – no yes
505-406 SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA 2004-07-08 no yes
505-612 SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA 2002-11-18 no yes
505-809 SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA 2005-08-29 no yes
505-943 NAVAJO COMM CO INC NM DBA NAVAJO COMM CO NM 2012-04-09 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
SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA – 3 50%
NAVAJO COMM CO INC NM DBA NAVAJO COMM CO NM – 2 33.3%
LEVEL 3 COMMUNICATIONS, LLC - NM Lumen 1 16.7%

Frequently asked

Which prefixes belong to SHIPROCK in area code 505?

6 blocks: 354, 368, 406, 612, 809, 943. The table above gives the holder of each.

Which carriers have numbers in SHIPROCK?

SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA (3 blocks), NAVAJO COMM CO INC NM DBA NAVAJO COMM CO NM (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - NM (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SHIPROCK 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 505

All 685 prefixes in 505