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

WAUPUN prefixes in area code 920

NANPA records 7 assigned NXX blocks to rate center WAUPUN in area code 920, 0.9% 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 ONVOY, LLC - WI (2), PAETEC ITEL, LLC (1), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI (1). The earliest assignment on record here is 2016-06-27 and the most recent 2023-07-07. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

7 assigned blocks – 0.9% of 920
6 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
920-239 Windstream PAETEC ITEL, LLC – yes yes
920-302 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI – no yes
920-307 Onvoy ONVOY, LLC - WI 2021-06-23 yes yes
920-324 AT&T WISCONSIN BELL INC – no yes
920-325 Bandwidth BANDWIDTH.COM CLEC, LLC - WI 2016-06-27 yes yes
920-345 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC WI – yes yes
920-879 Onvoy ONVOY, LLC - WI 2023-07-07 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
ONVOY, LLC - WI Onvoy 2 28.6%
PAETEC ITEL, LLC Windstream 1 14.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI Verizon 1 14.3%
WISCONSIN BELL INC AT&T 1 14.3%
BANDWIDTH.COM CLEC, LLC - WI Bandwidth 1 14.3%
TELEPORT COMMUNICATIONS AMERICA, LLC WI AT&T 1 14.3%

Frequently asked

Which prefixes belong to WAUPUN in area code 920?

7 blocks: 239, 302, 307, 324, 325, 345, 879. The table above gives the holder of each.

Which carriers have numbers in WAUPUN?

ONVOY, LLC - WI (2 blocks), PAETEC ITEL, LLC (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI (1 block), WISCONSIN BELL INC (1 block), BANDWIDTH.COM CLEC, LLC - WI (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC WI (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is WAUPUN 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