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

CHARLES TN prefixes in area code 304

NANPA records 5 assigned NXX blocks to rate center CHARLES TN in area code 304, 0.6% of the 785 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 CITIZENS TEL CO OF WV DBA FRONTIER OF WV (3), LEVEL 3 COMMUNICATIONS, LLC - WV (1), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1). The earliest assignment on record here is 2001-11-19 and the most recent 2006-02-07. 2 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 code 681 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 304
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
304-724 Frontier CITIZENS TEL CO OF WV DBA FRONTIER OF WV – no yes
304-725 Frontier CITIZENS TEL CO OF WV DBA FRONTIER OF WV – no yes
304-728 Frontier CITIZENS TEL CO OF WV DBA FRONTIER OF WV – no yes
304-885 Lumen LEVEL 3 COMMUNICATIONS, LLC - WV 2001-11-19 yes yes
304-930 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2006-02-07 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
CITIZENS TEL CO OF WV DBA FRONTIER OF WV Frontier 3 60%
LEVEL 3 COMMUNICATIONS, LLC - WV Lumen 1 20%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 20%

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 CHARLES TN in area code 304?

5 blocks: 724, 725, 728, 885, 930. The table above gives the holder of each.

Which carriers have numbers in CHARLES TN?

CITIZENS TEL CO OF WV DBA FRONTIER OF WV (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - WV (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES 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 CHARLES TN 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 304

All 785 prefixes in 304