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

PARKER DAM prefixes in area code 928

NANPA records 4 assigned NXX blocks to rate center PARKER DAM in area code 928, 0.6% 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. 3 holders hold those blocks, the largest being FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ (2), TON80 COMMUNICATIONS, LLC (1), FRACTEL, LLC (1). The earliest assignment on record here is 2020-06-02 and the most recent 2022-02-16. 4 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 codes 442, 760 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 0.6% of 928
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
928-625 TON80 COMMUNICATIONS, LLC 2022-02-16 yes yes
928-662 Frontier FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ – yes yes
928-667 Frontier FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ – yes yes
928-877 FRACTEL, LLC 2020-06-02 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
FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ Frontier 2 50%
TON80 COMMUNICATIONS, LLC – 1 25%
FRACTEL, LLC – 1 25%

Frequently asked

Which prefixes belong to PARKER DAM in area code 928?

4 blocks: 625, 662, 667, 877. The table above gives the holder of each.

Which carriers have numbers in PARKER DAM?

FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ (2 blocks), TON80 COMMUNICATIONS, LLC (1 block), FRACTEL, 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 PARKER DAM 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