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

BARRINGTON prefixes in area code 224

NANPA records 19 assigned NXX blocks to rate center BARRINGTON in area code 224, 3.2% of the 595 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 T-MOBILE USA, INC. (8), ONVOY, LLC (3), NEW CINGULAR WIRELESS PCS, LLC - IL (3). The earliest assignment on record here is 2002-01-17 and the most recent 2024-03-07. 18 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 codes 603, 847 – overlay codes cover the same geography, so a rate center is served by all of them.

19 assigned blocks – 3.2% of 224
7 holders of record
18 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
224-228 Onvoy ONVOY, LLC 2012-09-28 yes yes
224-288 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2018-02-27 yes yes
224-385 T-Mobile T-MOBILE USA, INC. 2014-06-11 yes yes
224-396 T-Mobile T-MOBILE USA, INC. 2021-08-03 yes yes
224-427 T-Mobile T-MOBILE USA, INC. 2013-04-18 yes yes
224-448 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2021-12-23 yes yes
224-451 Onvoy ONVOY, LLC 2020-06-22 yes yes
224-485 NUSO, LLC 2022-09-21 yes yes
224-489 T-Mobile T-MOBILE USA, INC. 2002-06-10 yes yes
224-512 AT&T ILLINOIS BELL TEL CO 2002-01-17 yes yes
224-517 T-Mobile T-MOBILE USA, INC. 2015-02-20 yes yes
224-594 Onvoy ONVOY, LLC 2024-03-07 yes yes
224-599 FRACTEL, LLC 2020-07-10 yes yes
224-622 T-Mobile T-MOBILE USA, INC. 2002-03-28 no yes
224-633 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL 2005-02-28 yes yes
224-634 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2009-04-28 yes yes
224-655 Lumen LEVEL 3 COMMUNICATIONS, LLC - IL 2005-12-30 yes yes
224-770 T-Mobile T-MOBILE USA, INC. 2005-12-06 yes yes
224-848 T-Mobile T-MOBILE USA, INC. 2005-06-30 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
T-MOBILE USA, INC. T-Mobile 8 42.1%
ONVOY, LLC Onvoy 3 15.8%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 3 15.8%
LEVEL 3 COMMUNICATIONS, LLC - IL Lumen 2 10.5%
NUSO, LLC – 1 5.3%
ILLINOIS BELL TEL CO AT&T 1 5.3%
FRACTEL, LLC – 1 5.3%

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 BARRINGTON in area code 224?

19 blocks: 228, 288, 385, 396, 427, 448, 451, 485, 489, 512, 517, 594 and 7 more, all listed in the table above.

Which carriers have numbers in BARRINGTON?

T-MOBILE USA, INC. (8 blocks), ONVOY, LLC (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - IL (2 blocks), NUSO, LLC (1 block), ILLINOIS BELL TEL CO (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BARRINGTON 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 224

All 595 prefixes in 224