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

FINCHBURG prefixes in area code 251

NANPA records 5 assigned NXX blocks to rate center FINCHBURG in area code 251, 0.9% of the 528 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 FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL (1), FRACTEL, LLC (1), ONVOY SPECTRUM, LLC (1). The earliest assignment on record here is 2005-02-18 and the most recent 2022-03-30. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

5 assigned blocks – 0.9% of 251
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
251-282 Frontier FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL – yes yes
251-356 FRACTEL, LLC 2019-12-02 yes yes
251-449 Charter ONVOY SPECTRUM, LLC 2021-02-03 yes yes
251-556 Onvoy ONVOY, LLC - AL 2022-03-30 yes yes
251-714 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2005-02-18 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 SOUTH, LLC - AL Frontier 1 20%
FRACTEL, LLC – 1 20%
ONVOY SPECTRUM, LLC Charter 1 20%
ONVOY, LLC - AL Onvoy 1 20%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 1 20%

Frequently asked

Which prefixes belong to FINCHBURG in area code 251?

5 blocks: 282, 356, 449, 556, 714. The table above gives the holder of each.

Which carriers have numbers in FINCHBURG?

FRONTIER COMMUNICATIONS OF THE SOUTH, LLC - AL (1 block), FRACTEL, LLC (1 block), ONVOY SPECTRUM, LLC (1 block), ONVOY, LLC - AL (1 block), NEW CINGULAR WIRELESS PCS, LLC - GA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is FINCHBURG 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 251

All 528 prefixes in 251