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

FTATKINSON prefixes in area code 920

NANPA records 10 assigned NXX blocks to rate center FTATKINSON in area code 920, 1.3% of the 785 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. 6 holders hold those blocks, the largest being UNITED STATES CELLULAR - WI (3), ONVOY, LLC - WI (2), WISCONSIN BELL INC (2). The earliest assignment on record here is 2001-04-03 and the most recent 2023-12-12. 8 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 563 – overlay codes cover the same geography, so a rate center is served by all of them.

10 assigned blocks – 1.3% of 920
6 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
920-308 Onvoy ONVOY, LLC - WI 2017-03-13 yes yes
920-397 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2001-10-02 yes yes
920-542 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC WI 2002-04-15 yes yes
920-563 AT&T WISCONSIN BELL INC – no yes
920-568 AT&T WISCONSIN BELL INC – no yes
920-691 Windstream PAETEC ITEL, LLC – yes yes
920-723 UNITED STATES CELLULAR - WI – yes yes
920-728 UNITED STATES CELLULAR - WI 2001-04-03 yes yes
920-817 UNITED STATES CELLULAR - WI 2021-11-03 yes yes
920-951 Onvoy ONVOY, LLC - WI 2023-12-12 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
UNITED STATES CELLULAR - WI – 3 30%
ONVOY, LLC - WI Onvoy 2 20%
WISCONSIN BELL INC AT&T 2 20%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 10%
TELEPORT COMMUNICATIONS AMERICA, LLC WI AT&T 1 10%
PAETEC ITEL, LLC Windstream 1 10%

Frequently asked

Which prefixes belong to FTATKINSON in area code 920?

10 blocks: 308, 397, 542, 563, 568, 691, 723, 728, 817, 951. The table above gives the holder of each.

Which carriers have numbers in FTATKINSON?

UNITED STATES CELLULAR - WI (3 blocks), ONVOY, LLC - WI (2 blocks), WISCONSIN BELL INC (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC WI (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 FTATKINSON 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 920

All 785 prefixes in 920