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

FORTVALLEY prefixes in area code 478

NANPA records 6 assigned NXX blocks to rate center FORTVALLEY in area code 478, 1.3% of the 446 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 BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (2), LEVEL 3 COMMUNICATIONS, LLC - GA (1), ONVOY, LLC - GA (1). The earliest assignment on record here is 2006-07-06 and the most recent 2026-09-14. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 1.3% of 478
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
478-354 Lumen LEVEL 3 COMMUNICATIONS, LLC - GA 2021-11-05 yes yes
478-427 Onvoy ONVOY, LLC - GA 2026-09-14 yes no
478-721 Bandwidth BANDWIDTH.COM CLEC, LLC - GA 2006-07-06 yes yes
478-822 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – yes yes
478-825 AT&T BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL – no yes
478-827 AT&T AT&T ENTERPRISES, LLC – 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
BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL AT&T 2 33.3%
LEVEL 3 COMMUNICATIONS, LLC - GA Lumen 1 16.7%
ONVOY, LLC - GA Onvoy 1 16.7%
BANDWIDTH.COM CLEC, LLC - GA Bandwidth 1 16.7%
AT&T ENTERPRISES, LLC AT&T 1 16.7%

Frequently asked

Which prefixes belong to FORTVALLEY in area code 478?

6 blocks: 354, 427, 721, 822, 825, 827. The table above gives the holder of each.

Which carriers have numbers in FORTVALLEY?

BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - GA (1 block), ONVOY, LLC - GA (1 block), BANDWIDTH.COM CLEC, LLC - GA (1 block), AT&T ENTERPRISES, 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 FORTVALLEY 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 478

All 446 prefixes in 478