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

CAPAC prefixes in area code 810

NANPA records 6 assigned NXX blocks to rate center CAPAC in area code 810, 1.2% 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. 5 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (2), 123.NET, LLC (1), FRONTIER NORTH, INC. - MI (1). The earliest assignment on record here is 2001-07-17 and the most recent 2002-09-17. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 1.2% of 810
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
810-310 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI – yes yes
810-371 123.NET, LLC – yes yes
810-395 Frontier FRONTIER NORTH, INC. - MI – yes yes
810-669 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - MI 2001-10-18 yes yes
810-729 INTERACTIVE SERVICES NETWORK, INC. 2001-07-17 no yes
810-751 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 2002-09-17 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 33.3%
123.NET, LLC – 1 16.7%
FRONTIER NORTH, INC. - MI Frontier 1 16.7%
TELEPORT COMMUNICATIONS AMERICA, LLC - MI AT&T 1 16.7%
INTERACTIVE SERVICES NETWORK, INC. – 1 16.7%

Frequently asked

Which prefixes belong to CAPAC in area code 810?

6 blocks: 310, 371, 395, 669, 729, 751. The table above gives the holder of each.

Which carriers have numbers in CAPAC?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (2 blocks), 123.NET, LLC (1 block), FRONTIER NORTH, INC. - MI (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - MI (1 block), INTERACTIVE SERVICES NETWORK, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CAPAC 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