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

ALLIANCE prefixes in area code 330

NANPA records 17 assigned NXX blocks to rate center ALLIANCE in area code 330, 2.2% of the 787 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. 8 holders hold those blocks, the largest being OHIO BELL TEL CO (4), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH (3), LEVEL 3 COMMUNICATIONS, LLC - OH (3). The earliest assignment on record here is 2002-03-20 and the most recent 2009-12-04. 10 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 234, 308 – overlay codes cover the same geography, so a rate center is served by all of them.

17 assigned blocks – 2.2% of 330
8 holders of record
10 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
330-206 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH – no yes
330-238 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH 2002-03-21 yes yes
330-248 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH – yes yes
330-257 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
330-356 T-Mobile T-MOBILE USA, INC. 2002-03-20 yes yes
330-428 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH – yes yes
330-512 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
330-581 T-Mobile T-MOBILE USA, INC. – yes yes
330-585 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
330-596 AT&T OHIO BELL TEL CO – yes yes
330-614 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 2002-09-27 yes yes
330-680 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH – yes yes
330-821 AT&T OHIO BELL TEL CO – no yes
330-823 AT&T OHIO BELL TEL CO – no yes
330-829 AT&T OHIO BELL TEL CO – no yes
330-901 Spok SPOK, INC. – no yes
330-913 AT&T AT&T ENTERPRISES, LLC 2009-12-04 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
OHIO BELL TEL CO AT&T 4 23.5%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH Verizon 3 17.6%
LEVEL 3 COMMUNICATIONS, LLC - OH Lumen 3 17.6%
T-MOBILE USA, INC. T-Mobile 2 11.8%
AMERICAN MESSAGING SERVICES, LLC American Messaging 2 11.8%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 5.9%
SPOK, INC. Spok 1 5.9%
AT&T ENTERPRISES, LLC AT&T 1 5.9%

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 ALLIANCE in area code 330?

17 blocks: 206, 238, 248, 257, 356, 428, 512, 581, 585, 596, 614, 680 and 5 more, all listed in the table above.

Which carriers have numbers in ALLIANCE?

OHIO BELL TEL CO (4 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH (3 blocks), LEVEL 3 COMMUNICATIONS, LLC - OH (3 blocks), T-MOBILE USA, INC. (2 blocks), AMERICAN MESSAGING SERVICES, LLC (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is ALLIANCE 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 330

All 787 prefixes in 330