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

HARTLEY prefixes in area code 712

NANPA records 3 assigned NXX blocks to rate center HARTLEY 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. - NORTH (2), COMMUNITY CABLE TV AGCY O'BRIEN CO. DBA COMM.-IA (1). The earliest assignment on record here is 2001-10-18 and the most recent 2011-12-09. 2 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 806 – 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
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
712-459 Windstream WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 2011-12-09 yes yes
712-728 Windstream WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH – yes yes
712-928 COMMUNITY CABLE TV AGCY O'BRIEN CO. DBA COMM.-IA 2001-10-18 no 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. - NORTH Windstream 2 66.7%
COMMUNITY CABLE TV AGCY O'BRIEN CO. DBA COMM.-IA – 1 33.3%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to HARTLEY in area code 712?

3 blocks: 459, 728, 928. The table above gives the holder of each.

Which carriers have numbers in HARTLEY?

WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH (2 blocks), COMMUNITY CABLE TV AGCY O'BRIEN CO. DBA COMM.-IA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is HARTLEY 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