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

COLLINSCK prefixes in area code 843

NANPA records 7 assigned NXX blocks to rate center COLLINSCK in area code 843, 0.9% 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. 3 holders hold those blocks, the largest being HORRY TEL. COOP., INC. (3), TWC IP ENABLED SERVICES, LLC (3), LEVEL 3 COMMUNICATIONS, LLC - SC (1). The earliest assignment on record here is 2001-01-02 and the most recent 2013-01-03. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

7 assigned blocks – 0.9% of 843
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
843-215 HORRY TEL. COOP., INC. – no yes
843-581 HORRY TEL. COOP., INC. 2001-01-02 no yes
843-649 Lumen LEVEL 3 COMMUNICATIONS, LLC - SC 2008-10-02 yes yes
843-650 HORRY TEL. COOP., INC. – no yes
843-668 Charter TWC IP ENABLED SERVICES, LLC 2013-01-03 yes yes
843-748 Charter TWC IP ENABLED SERVICES, LLC 2007-01-01 yes yes
843-750 Charter TWC IP ENABLED SERVICES, LLC 2007-11-09 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
HORRY TEL. COOP., INC. – 3 42.9%
TWC IP ENABLED SERVICES, LLC Charter 3 42.9%
LEVEL 3 COMMUNICATIONS, LLC - SC Lumen 1 14.3%

Frequently asked

Which prefixes belong to COLLINSCK in area code 843?

7 blocks: 215, 581, 649, 650, 668, 748, 750. The table above gives the holder of each.

Which carriers have numbers in COLLINSCK?

HORRY TEL. COOP., INC. (3 blocks), TWC IP ENABLED SERVICES, LLC (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - 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 COLLINSCK 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