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

MASSILLON prefixes in area code 330

NANPA records 14 assigned NXX blocks to rate center MASSILLON in area code 330, 1.8% 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. 7 holders hold those blocks, the largest being OHIO BELL TEL CO (5), LEVEL 3 COMMUNICATIONS, LLC - OH (3), AMERICAN MESSAGING SERVICES, LLC (2). The earliest assignment on record here is 2002-03-21 and the most recent 2008-07-03. 7 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 code 234 – overlay codes cover the same geography, so a rate center is served by all of them.

14 assigned blocks – 1.8% of 330
7 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
330-236 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH 2002-03-21 yes yes
330-481 T-Mobile METROPCS, INC. – yes yes
330-514 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
330-579 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
330-737 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH – yes yes
330-775 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH – yes yes
330-809 SUPER-NET, INC. - OH 2008-07-03 yes yes
330-830 AT&T OHIO BELL TEL CO – no yes
330-832 AT&T OHIO BELL TEL CO – no yes
330-833 AT&T OHIO BELL TEL CO – no yes
330-834 AT&T OHIO BELL TEL CO – yes yes
330-837 AT&T OHIO BELL TEL CO – no yes
330-844 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH – no yes
330-880 Charter TWC IP ENABLED SERVICES, LLC – 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 5 35.7%
LEVEL 3 COMMUNICATIONS, LLC - OH Lumen 3 21.4%
AMERICAN MESSAGING SERVICES, LLC American Messaging 2 14.3%
METROPCS, INC. T-Mobile 1 7.1%
SUPER-NET, INC. - OH – 1 7.1%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH Verizon 1 7.1%
TWC IP ENABLED SERVICES, LLC Charter 1 7.1%

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 MASSILLON in area code 330?

14 blocks: 236, 481, 514, 579, 737, 775, 809, 830, 832, 833, 834, 837 and 2 more, all listed in the table above.

Which carriers have numbers in MASSILLON?

OHIO BELL TEL CO (5 blocks), LEVEL 3 COMMUNICATIONS, LLC - OH (3 blocks), AMERICAN MESSAGING SERVICES, LLC (2 blocks), METROPCS, INC. (1 block), SUPER-NET, INC. - OH (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MASSILLON 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