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

IMLAY CITY prefixes in area code 810

NANPA records 8 assigned NXX blocks to rate center IMLAY CITY in area code 810, 1.6% of the 509 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 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (2), OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2), FRONTIER NORTH, INC. - MI (2). The earliest assignment on record here is 2002-06-26 and the most recent 2002-09-17. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

8 assigned blocks – 1.6% of 810
5 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
810-253 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
810-417 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI – yes yes
810-627 T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2002-06-26 yes yes
810-683 T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC – yes yes
810-721 Frontier FRONTIER NORTH, INC. - MI – yes yes
810-724 Frontier FRONTIER NORTH, INC. - MI – no yes
810-790 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 2002-09-17 yes yes
810-842 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - MI – 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 2 25%
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC T-Mobile 2 25%
FRONTIER NORTH, INC. - MI Frontier 2 25%
AMERICAN MESSAGING SERVICES, LLC American Messaging 1 12.5%
TELEPORT COMMUNICATIONS AMERICA, LLC - MI AT&T 1 12.5%

Frequently asked

Which prefixes belong to IMLAY CITY in area code 810?

8 blocks: 253, 417, 627, 683, 721, 724, 790, 842. The table above gives the holder of each.

Which carriers have numbers in IMLAY CITY?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (2 blocks), OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (2 blocks), FRONTIER NORTH, INC. - MI (2 blocks), AMERICAN MESSAGING SERVICES, LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - MI (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is IMLAY CITY 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 810

All 509 prefixes in 810