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

WINNSBORO prefixes in area code 803

NANPA records 8 assigned NXX blocks to rate center WINNSBORO in area code 803, 1.0% of the 784 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. 5 holders hold those blocks, the largest being FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (2), NEW CINGULAR WIRELESS PCS, LLC - GA (1). The earliest assignment on record here is 2001-10-23 and the most recent 2013-01-09. 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 318, 430, 839, 903 – overlay codes cover the same geography, so a rate center is served by all of them.

8 assigned blocks – 1% of 803
5 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
803-402 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2008-12-15 yes yes
803-589 Windstream PAETEC ITEL, LLC 2001-10-23 yes yes
803-633 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – yes yes
803-635 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – no yes
803-712 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – yes yes
803-718 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC – yes yes
803-801 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 2013-01-09 yes yes
803-815 FAIRFIELD COMMUNICATIONS, INC. - SC 2003-09-10 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
FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC Frontier 3 37.5%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC Verizon 2 25%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 1 12.5%
PAETEC ITEL, LLC Windstream 1 12.5%
FAIRFIELD COMMUNICATIONS, INC. - SC – 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 WINNSBORO in area code 803?

8 blocks: 402, 589, 633, 635, 712, 718, 801, 815. The table above gives the holder of each.

Which carriers have numbers in WINNSBORO?

FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (1 block), PAETEC ITEL, LLC (1 block), FAIRFIELD COMMUNICATIONS, INC. - SC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is WINNSBORO 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 803

All 784 prefixes in 803