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

SNOWFLAKE prefixes in area code 928

NANPA records 5 assigned NXX blocks to rate center SNOWFLAKE in area code 928, 0.8% of the 637 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. 5 holders hold those blocks, the largest being SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA (1), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ (1), LEVEL 3 COMMUNICATIONS, LLC - AZ (1). The earliest assignment on record here is 2002-12-31 and the most recent 2007-03-08. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

5 assigned blocks – 0.8% of 928
5 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
928-229 SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA 2005-12-20 no yes
928-243 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 2002-12-31 yes yes
928-457 Lumen LEVEL 3 COMMUNICATIONS, LLC - AZ 2007-03-08 yes yes
928-498 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - AZ – yes yes
928-536 CITIZENS TELECOM CO OF WHITE MOUNTAINS INC. – no 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 – 1 20%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ Verizon 1 20%
LEVEL 3 COMMUNICATIONS, LLC - AZ Lumen 1 20%
TELEPORT COMMUNICATIONS AMERICA, LLC - AZ AT&T 1 20%
CITIZENS TELECOM CO OF WHITE MOUNTAINS INC. – 1 20%

Frequently asked

Which prefixes belong to SNOWFLAKE in area code 928?

5 blocks: 229, 243, 457, 498, 536. The table above gives the holder of each.

Which carriers have numbers in SNOWFLAKE?

SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ (1 block), LEVEL 3 COMMUNICATIONS, LLC - AZ (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - AZ (1 block), CITIZENS TELECOM CO OF WHITE MOUNTAINS INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SNOWFLAKE 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 928

All 637 prefixes in 928