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

AUDUBON prefixes in area code 712

NANPA records 3 assigned NXX blocks to rate center AUDUBON in area code 712, 0.5% of the 633 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. 2 holders hold those blocks, the largest being WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS (2), MCC TELEPHONY LLC (1). The earliest assignment on record here is 2010-02-16 and the most recent 2016-07-25. 3 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 218 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.5% of 712
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
712-205 Windstream WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 2016-07-25 yes yes
712-563 Windstream WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS – yes yes
712-588 MCC TELEPHONY LLC 2010-02-16 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
WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS Windstream 2 66.7%
MCC TELEPHONY LLC – 1 33.3%

Frequently asked

Which prefixes belong to AUDUBON in area code 712?

3 blocks: 205, 563, 588. The table above gives the holder of each.

Which carriers have numbers in AUDUBON?

WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS (2 blocks), MCC TELEPHONY 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 AUDUBON 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 712

All 633 prefixes in 712