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

SUMTER prefixes in area code 803

NANPA records 20 assigned NXX blocks to rate center SUMTER in area code 803, 2.6% 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. 7 holders hold those blocks, the largest being FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC (7), BANDWIDTH.COM CLEC, LLC - SC (3), FTC DIVERSIFIED SERVICES, INC. (3). The earliest assignment on record here is 2002-05-13 and the most recent 2020-07-23. 11 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 839 – overlay codes cover the same geography, so a rate center is served by all of them.

20 assigned blocks – 2.6% of 803
7 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
803-305 Bandwidth BANDWIDTH.COM CLEC, LLC - SC 2012-04-20 yes yes
803-418 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – no yes
803-436 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – no yes
803-464 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – no yes
803-720 T-Mobile METROPCS, INC. 2003-09-03 yes yes
803-757 Bandwidth BANDWIDTH.COM CLEC, LLC - SC 2014-05-28 yes yes
803-773 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – no yes
803-774 FTC DIVERSIFIED SERVICES, INC. – no yes
803-775 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – no yes
803-778 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – no yes
803-795 Lumen LEVEL 3 COMMUNICATIONS, LLC - SC 2002-08-20 yes yes
803-840 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC – no yes
803-847 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC – yes yes
803-848 Bandwidth BANDWIDTH.COM CLEC, LLC - SC 2016-08-22 yes yes
803-883 Lumen LEVEL 3 COMMUNICATIONS, LLC - SC 2002-05-13 yes yes
803-885 FTC DIVERSIFIED SERVICES, INC. 2011-04-25 yes yes
803-895 FTC DIVERSIFIED SERVICES, INC. – no yes
803-919 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2020-07-23 yes yes
803-934 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – yes yes
803-938 Frontier FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC – 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 COMMUNICATIONS OF THE CAROLINAS INC. - SC Frontier 7 35%
BANDWIDTH.COM CLEC, LLC - SC Bandwidth 3 15%
FTC DIVERSIFIED SERVICES, INC. – 3 15%
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 2 10%
LEVEL 3 COMMUNICATIONS, LLC - SC Lumen 2 10%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC Verizon 2 10%
METROPCS, INC. T-Mobile 1 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 SUMTER in area code 803?

20 blocks: 305, 418, 436, 464, 720, 757, 773, 774, 775, 778, 795, 840 and 8 more, all listed in the table above.

Which carriers have numbers in SUMTER?

FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC (7 blocks), BANDWIDTH.COM CLEC, LLC - SC (3 blocks), FTC DIVERSIFIED SERVICES, INC. (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - GA (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - SC (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SUMTER 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