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

KIRTLAND prefixes in area code 440

NANPA records 9 assigned NXX blocks to rate center KIRTLAND in area code 440, 1.2% of the 757 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. 7 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - OH (2), ONVOY, LLC - OH (2), OHIO BELL TEL CO (1). The earliest assignment on record here is 2015-04-28 and the most recent 2024-02-08. 9 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

9 assigned blocks – 1.2% of 440
7 holders of record
9 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
440-256 AT&T OHIO BELL TEL CO – yes yes
440-276 Bandwidth BANDWIDTH.COM CLEC, LLC - OH 2015-04-28 yes yes
440-367 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH – yes yes
440-379 Onvoy ONVOY, LLC - OH – yes yes
440-388 Lumen LEVEL 3 COMMUNICATIONS, LLC - OH – yes yes
440-393 IP HORIZON LLC 2024-02-08 yes yes
440-606 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - OH – yes yes
440-664 Onvoy ONVOY, LLC - OH 2020-05-28 yes yes
440-744 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH – 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
LEVEL 3 COMMUNICATIONS, LLC - OH Lumen 2 22.2%
ONVOY, LLC - OH Onvoy 2 22.2%
OHIO BELL TEL CO AT&T 1 11.1%
BANDWIDTH.COM CLEC, LLC - OH Bandwidth 1 11.1%
IP HORIZON LLC – 1 11.1%
TELEPORT COMMUNICATIONS AMERICA, LLC - OH AT&T 1 11.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH Verizon 1 11.1%

Frequently asked

Which prefixes belong to KIRTLAND in area code 440?

9 blocks: 256, 276, 367, 379, 388, 393, 606, 664, 744. The table above gives the holder of each.

Which carriers have numbers in KIRTLAND?

LEVEL 3 COMMUNICATIONS, LLC - OH (2 blocks), ONVOY, LLC - OH (2 blocks), OHIO BELL TEL CO (1 block), BANDWIDTH.COM CLEC, LLC - OH (1 block), IP HORIZON LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - OH (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is KIRTLAND 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 440

All 757 prefixes in 440