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

MARTIN prefixes in area code 731

NANPA records 10 assigned NXX blocks to rate center MARTIN in area code 731, 2.5% of the 395 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. 4 holders hold those blocks, the largest being CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC (4), NEW CINGULAR WIRELESS PCS, LLC - GA (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN (2). The earliest assignment on record here is 2002-01-21 and the most recent 2005-05-26. 5 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 269, 605, 606, 701 – overlay codes cover the same geography, so a rate center is served by all of them.

10 assigned blocks – 2.5% of 731
4 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
731-255 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
731-261 Frontier CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC 2002-01-21 yes yes
731-281 Windstream PAETEC ITEL, LLC – yes yes
731-332 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2002-09-04 yes yes
731-514 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN – no yes
731-587 Frontier CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC – no yes
731-588 Frontier CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC – no yes
731-636 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
731-819 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 2005-05-26 no yes
731-881 Frontier CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC 2004-03-25 no 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 COMM CO TN DBA FRONTIER COMM OF TN, LLC Frontier 4 40%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 3 30%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN Verizon 2 20%
PAETEC ITEL, LLC Windstream 1 10%

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 MARTIN in area code 731?

10 blocks: 255, 261, 281, 332, 514, 587, 588, 636, 819, 881. The table above gives the holder of each.

Which carriers have numbers in MARTIN?

CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC (4 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN (2 blocks), PAETEC ITEL, 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 MARTIN 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 731

All 395 prefixes in 731