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

LOWCOUNTRY prefixes in area code 843

NANPA records 5 assigned NXX blocks to rate center LOWCOUNTRY in area code 843, 0.6% of the 783 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 SUNCOM DBA T-MOBILE USA (2), LEVEL 3 COMMUNICATIONS, LLC - SC (1), HARGRAY, INC. - SC (1). The earliest assignment on record here is 2002-08-19 and the most recent 2004-09-27. 3 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 854 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 843
4 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
843-252 T-Mobile SUNCOM DBA T-MOBILE USA – yes yes
843-310 T-Mobile SUNCOM DBA T-MOBILE USA 2004-09-27 yes yes
843-548 Lumen LEVEL 3 COMMUNICATIONS, LLC - SC 2002-08-19 yes yes
843-645 HARGRAY, INC. - SC 2003-04-18 no yes
843-987 Brightspeed BRIGHTSPEED OF SOUTH CAROLINA, LLC – 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
SUNCOM DBA T-MOBILE USA T-Mobile 2 40%
LEVEL 3 COMMUNICATIONS, LLC - SC Lumen 1 20%
HARGRAY, INC. - SC – 1 20%
BRIGHTSPEED OF SOUTH CAROLINA, LLC Brightspeed 1 20%

Frequently asked

Which prefixes belong to LOWCOUNTRY in area code 843?

5 blocks: 252, 310, 548, 645, 987. The table above gives the holder of each.

Which carriers have numbers in LOWCOUNTRY?

SUNCOM DBA T-MOBILE USA (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - SC (1 block), HARGRAY, INC. - SC (1 block), BRIGHTSPEED OF SOUTH CAROLINA, 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 LOWCOUNTRY 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 843

All 783 prefixes in 843