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

MARTINSBG prefixes in area code 681

NANPA records 12 assigned NXX blocks to rate center MARTINSBG in area code 681, 2.4% of the 499 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. 8 holders hold those blocks, the largest being OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (3), ONVOY, LLC - WV (2), NEW CINGULAR WIRELESS PCS, LLC - DC (2). The earliest assignment on record here is 2012-05-07 and the most recent 2026-03-30. 12 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 304, 573, 641, 740 – overlay codes cover the same geography, so a rate center is served by all of them.

12 assigned blocks – 2.4% of 681
8 holders of record
12 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
681-247 SHENTEL COMMUNICATIONS, LLC. - WV 2016-08-17 yes yes
681-248 Onvoy ONVOY, LLC - WV 2018-10-25 yes yes
681-260 Frontier FRONTIER WEST VIRGINIA INC. 2012-05-07 yes yes
681-283 T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 2019-10-09 yes yes
681-389 T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 2021-07-22 yes yes
681-446 Comcast COMCAST IP PHONE, LLC 2022-09-30 yes yes
681-513 Onvoy ONVOY, LLC - WV 2023-09-21 yes yes
681-534 T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 2024-04-24 yes yes
681-572 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2025-06-26 yes yes
681-575 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV 2025-06-27 yes yes
681-597 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC 2026-02-19 yes yes
681-766 OPENTACT INC. 2026-03-30 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
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC T-Mobile 3 25%
ONVOY, LLC - WV Onvoy 2 16.7%
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 2 16.7%
SHENTEL COMMUNICATIONS, LLC. - WV – 1 8.3%
FRONTIER WEST VIRGINIA INC. Frontier 1 8.3%
COMCAST IP PHONE, LLC Comcast 1 8.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV Verizon 1 8.3%
OPENTACT INC. – 1 8.3%

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 MARTINSBG in area code 681?

12 blocks: 247, 248, 260, 283, 389, 446, 513, 534, 572, 575, 597, 766. The table above gives the holder of each.

Which carriers have numbers in MARTINSBG?

OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (3 blocks), ONVOY, LLC - WV (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - DC (2 blocks), SHENTEL COMMUNICATIONS, LLC. - WV (1 block), FRONTIER WEST VIRGINIA INC. (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 MARTINSBG 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 681

All 499 prefixes in 681