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

LEWISBURG prefixes in area code 304

NANPA records 8 assigned NXX blocks to rate center LEWISBURG in area code 304, 1.0% 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. 6 holders hold those blocks, the largest being FRONTIER WEST VIRGINIA INC. (2), UNITED STATES CELLULAR - WV (2), CSC VOICE, LLC (1). 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 272, 570, 606, 681 – overlay codes cover the same geography, so a rate center is served by all of them.

8 assigned blocks – 1% of 304
6 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
304-520 CSC VOICE, LLC – yes yes
304-645 Frontier FRONTIER WEST VIRGINIA INC. – yes yes
304-646 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – no yes
304-647 Frontier FRONTIER WEST VIRGINIA INC. – yes yes
304-661 UNITED STATES CELLULAR - WV – yes yes
304-667 UNITED STATES CELLULAR - WV – yes yes
304-793 FIBERNET, LLC - WV – no yes
304-992 T-Mobile AERIAL COMMUNICATIONS, INC. – 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 WEST VIRGINIA INC. Frontier 2 25%
UNITED STATES CELLULAR - WV – 2 25%
CSC VOICE, LLC – 1 12.5%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 1 12.5%
FIBERNET, LLC - WV – 1 12.5%
AERIAL COMMUNICATIONS, INC. T-Mobile 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 LEWISBURG in area code 304?

8 blocks: 520, 645, 646, 647, 661, 667, 793, 992. The table above gives the holder of each.

Which carriers have numbers in LEWISBURG?

FRONTIER WEST VIRGINIA INC. (2 blocks), UNITED STATES CELLULAR - WV (2 blocks), CSC VOICE, LLC (1 block), NEW CINGULAR WIRELESS PCS, LLC - DC (1 block), FIBERNET, LLC - WV (1 block), AERIAL COMMUNICATIONS, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is LEWISBURG 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