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

CARLYSS prefixes in area code 337

NANPA records 6 assigned NXX blocks to rate center CARLYSS in area code 337, 1.0% of the 599 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 NEW CINGULAR WIRELESS PCS, LLC - GA (2), CAMERON TEL CO (2), METROPCS, INC. (1). The earliest assignment on record here is 2005-08-12 and the most recent 2022-01-27. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 1% of 337
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
337-512 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2020-04-06 yes yes
337-558 CAMERON TEL CO – no yes
337-563 T-Mobile METROPCS, INC. 2005-09-02 yes yes
337-583 CAMERON TEL CO – no yes
337-746 TON80 COMMUNICATIONS, LLC 2022-01-27 yes yes
337-965 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2005-08-12 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
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 2 33.3%
CAMERON TEL CO – 2 33.3%
METROPCS, INC. T-Mobile 1 16.7%
TON80 COMMUNICATIONS, LLC – 1 16.7%

Frequently asked

Which prefixes belong to CARLYSS in area code 337?

6 blocks: 512, 558, 563, 583, 746, 965. The table above gives the holder of each.

Which carriers have numbers in CARLYSS?

NEW CINGULAR WIRELESS PCS, LLC - GA (2 blocks), CAMERON TEL CO (2 blocks), METROPCS, INC. (1 block), TON80 COMMUNICATIONS, 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 CARLYSS 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 337

All 599 prefixes in 337