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

FRANKLIN prefixes in area code 337

NANPA records 8 assigned NXX blocks to rate center FRANKLIN in area code 337, 1.3% of the 599 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. 6 holders hold those blocks, the largest being BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA (1), ADVANCED TEL., INC. - LA (1). The earliest assignment on record here is 2002-04-22 and the most recent 2009-12-29. 6 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 207, 217, 270, 304 – overlay codes cover the same geography, so a rate center is served by all of them.

8 assigned blocks – 1.3% of 337
6 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
337-346 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 2003-03-03 yes yes
337-355 ADVANCED TEL., INC. - LA 2002-04-22 no yes
337-413 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
337-471 AT&T AT&T ENTERPRISES, LLC 2009-12-29 yes yes
337-809 Windstream PAETEC ITEL, LLC 2005-04-26 yes yes
337-828 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
337-829 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
337-907 Comcast COMCAST IP PHONE, 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 SOUTH CENTRAL BELL TEL AT&T 3 37.5%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA Verizon 1 12.5%
ADVANCED TEL., INC. - LA – 1 12.5%
AT&T ENTERPRISES, LLC AT&T 1 12.5%
PAETEC ITEL, LLC Windstream 1 12.5%
COMCAST IP PHONE, LLC Comcast 1 12.5%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to FRANKLIN in area code 337?

8 blocks: 346, 355, 413, 471, 809, 828, 829, 907. The table above gives the holder of each.

Which carriers have numbers in FRANKLIN?

BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA (1 block), ADVANCED TEL., INC. - LA (1 block), AT&T ENTERPRISES, LLC (1 block), PAETEC ITEL, LLC (1 block), COMCAST IP PHONE, 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 FRANKLIN 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 337

All 599 prefixes in 337