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

HALLETTSVL prefixes in area code 361

NANPA records 7 assigned NXX blocks to rate center HALLETTSVL in area code 361, 1.3% of the 538 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 NEW CINGULAR WIRELESS PCS, LLC - IL (2), SOUTHWESTERN BELL (2), ONVOY, LLC - TX (1). The earliest assignment on record here is 2001-05-14 and the most recent 2004-10-28. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

7 assigned blocks – 1.3% of 361
5 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
361-204 Onvoy ONVOY, LLC - TX – no yes
361-217 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-07-10 yes yes
361-245 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX – yes yes
361-258 AT&T SOUTHWESTERN BELL 2001-05-14 yes yes
361-733 AT&T AT&T ENTERPRISES, LLC 2004-10-28 yes yes
361-772 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
361-798 AT&T SOUTHWESTERN BELL – 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 - IL AT&T 2 28.6%
SOUTHWESTERN BELL AT&T 2 28.6%
ONVOY, LLC - TX Onvoy 1 14.3%
LEVEL 3 COMMUNICATIONS, LLC - TX Lumen 1 14.3%
AT&T ENTERPRISES, LLC AT&T 1 14.3%

Frequently asked

Which prefixes belong to HALLETTSVL in area code 361?

7 blocks: 204, 217, 245, 258, 733, 772, 798. The table above gives the holder of each.

Which carriers have numbers in HALLETTSVL?

NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), SOUTHWESTERN BELL (2 blocks), ONVOY, LLC - TX (1 block), LEVEL 3 COMMUNICATIONS, LLC - TX (1 block), AT&T ENTERPRISES, 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 HALLETTSVL 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 361

All 538 prefixes in 361