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

APPLEGATE prefixes in area code 810

NANPA records 5 assigned NXX blocks to rate center APPLEGATE in area code 810, 1.0% 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 AMERICAN MESSAGING SERVICES, LLC (1), LEVEL 3 COMMUNICATIONS, LLC - MI (1), MICHIGAN BELL TEL CO (1). 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

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

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
810-203 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
810-476 Lumen LEVEL 3 COMMUNICATIONS, LLC - MI – yes yes
810-633 AT&T MICHIGAN BELL TEL CO – yes yes
810-674 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - MI – yes yes
810-699 123.NET, 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
AMERICAN MESSAGING SERVICES, LLC American Messaging 1 20%
LEVEL 3 COMMUNICATIONS, LLC - MI Lumen 1 20%
MICHIGAN BELL TEL CO AT&T 1 20%
TELEPORT COMMUNICATIONS AMERICA, LLC - MI AT&T 1 20%
123.NET, LLC – 1 20%

Frequently asked

Which prefixes belong to APPLEGATE in area code 810?

5 blocks: 203, 476, 633, 674, 699. The table above gives the holder of each.

Which carriers have numbers in APPLEGATE?

AMERICAN MESSAGING SERVICES, LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - MI (1 block), MICHIGAN BELL TEL CO (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - MI (1 block), 123.NET, 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 APPLEGATE 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