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

MUSTANG prefixes in area code 405

NANPA records 5 assigned NXX blocks to rate center MUSTANG in area code 405, 0.6% of the 783 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 COMCAST IP PHONE, LLC (1), ONVOY, LLC - OK (1), SOUTHWESTERN BELL (1). The earliest assignment on record here is 2019-09-06 and the most recent 2019-09-06. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area code 572 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 405
5 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
405-256 Comcast COMCAST IP PHONE, LLC – yes yes
405-353 Onvoy ONVOY, LLC - OK – yes yes
405-376 AT&T SOUTHWESTERN BELL – no yes
405-674 Peerless PEERLESS NETWORK OF OKLAHOMA, LLC - OK 2019-09-06 yes yes
405-806 Windstream PAETEC ITEL, 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
COMCAST IP PHONE, LLC Comcast 1 20%
ONVOY, LLC - OK Onvoy 1 20%
SOUTHWESTERN BELL AT&T 1 20%
PEERLESS NETWORK OF OKLAHOMA, LLC - OK Peerless 1 20%
PAETEC ITEL, LLC Windstream 1 20%

Frequently asked

Which prefixes belong to MUSTANG in area code 405?

5 blocks: 256, 353, 376, 674, 806. The table above gives the holder of each.

Which carriers have numbers in MUSTANG?

COMCAST IP PHONE, LLC (1 block), ONVOY, LLC - OK (1 block), SOUTHWESTERN BELL (1 block), PEERLESS NETWORK OF OKLAHOMA, LLC - OK (1 block), PAETEC ITEL, 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 MUSTANG 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 405

All 783 prefixes in 405