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

ALGONAC prefixes in area code 810

NANPA records 11 assigned NXX blocks to rate center ALGONAC in area code 810, 2.2% 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. 9 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (2), MICHIGAN BELL TEL CO (2), BOOST SUBSCRIBERCO L.L.C. (1). The earliest assignment on record here is 2001-10-18 and the most recent 2022-01-04. 9 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

11 assigned blocks – 2.2% of 810
9 holders of record
9 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
810-278 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI – yes yes
810-303 Dish BOOST SUBSCRIBERCO L.L.C. 2022-01-04 yes yes
810-335 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
810-512 123.NET, LLC 2001-10-18 yes yes
810-580 T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2002-07-11 yes yes
810-671 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - MI – yes yes
810-734 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 2002-03-28 yes yes
810-748 AT&T MICHIGAN BELL TEL CO – yes yes
810-794 AT&T MICHIGAN BELL TEL CO – yes yes
810-821 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI – no yes
810-857 INTERACTIVE SERVICES NETWORK, INC. 2002-01-16 no 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 18.2%
MICHIGAN BELL TEL CO AT&T 2 18.2%
BOOST SUBSCRIBERCO L.L.C. Dish 1 9.1%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 9.1%
123.NET, LLC – 1 9.1%
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC T-Mobile 1 9.1%
TELEPORT COMMUNICATIONS AMERICA, LLC - MI AT&T 1 9.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI Verizon 1 9.1%
INTERACTIVE SERVICES NETWORK, INC. – 1 9.1%

Frequently asked

Which prefixes belong to ALGONAC in area code 810?

11 blocks: 278, 303, 335, 512, 580, 671, 734, 748, 794, 821, 857. The table above gives the holder of each.

Which carriers have numbers in ALGONAC?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (2 blocks), MICHIGAN BELL TEL CO (2 blocks), BOOST SUBSCRIBERCO L.L.C. (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), 123.NET, LLC (1 block), OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, 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 ALGONAC 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