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

CHEBOYGAN prefixes in area code 231

NANPA records 13 assigned NXX blocks to rate center CHEBOYGAN in area code 231, 2.3% of the 572 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. 9 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (3), MICHIGAN BELL TEL CO (3), BANDWIDTH.COM CLEC, LLC - MI (1). The earliest assignment on record here is 2002-04-04 and the most recent 2022-02-18. 8 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

13 assigned blocks – 2.3% of 231
9 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
231-249 Bandwidth BANDWIDTH.COM CLEC, LLC - MI – no yes
231-268 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 2004-07-12 yes yes
231-333 Lumen LEVEL 3 COMMUNICATIONS, LLC - MI 2002-04-04 yes yes
231-363 INTERACTIVE SERVICES NETWORK, INC. – no yes
231-420 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI – no yes
231-445 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 2004-08-24 yes yes
231-597 AT&T MICHIGAN BELL TEL CO – yes yes
231-615 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
231-625 AT&T MICHIGAN BELL TEL CO – yes yes
231-627 AT&T MICHIGAN BELL TEL CO – yes yes
231-746 TON80 COMMUNICATIONS, LLC 2022-02-18 yes yes
231-782 123.NET, LLC 2002-08-27 no yes
231-818 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – 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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI Verizon 3 23.1%
MICHIGAN BELL TEL CO AT&T 3 23.1%
BANDWIDTH.COM CLEC, LLC - MI Bandwidth 1 7.7%
LEVEL 3 COMMUNICATIONS, LLC - MI Lumen 1 7.7%
INTERACTIVE SERVICES NETWORK, INC. – 1 7.7%
AMERICAN MESSAGING SERVICES, LLC American Messaging 1 7.7%
TON80 COMMUNICATIONS, LLC – 1 7.7%
123.NET, LLC – 1 7.7%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 7.7%

Frequently asked

Which prefixes belong to CHEBOYGAN in area code 231?

13 blocks: 249, 268, 333, 363, 420, 445, 597, 615, 625, 627, 746, 782 and 1 more, all listed in the table above.

Which carriers have numbers in CHEBOYGAN?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (3 blocks), MICHIGAN BELL TEL CO (3 blocks), BANDWIDTH.COM CLEC, LLC - MI (1 block), LEVEL 3 COMMUNICATIONS, LLC - MI (1 block), INTERACTIVE SERVICES NETWORK, INC. (1 block), AMERICAN MESSAGING SERVICES, 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 CHEBOYGAN 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 231

All 572 prefixes in 231