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

CLYMAN prefixes in area code 920

NANPA records 4 assigned NXX blocks to rate center CLYMAN in area code 920, 0.5% 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. 4 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - WI (1), FRONTIER NORTH INC. - WI (1), NUSO, LLC (1). The earliest assignment on record here is 2001-06-28 and the most recent 2024-10-08. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.5% of 920
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
920-341 Lumen LEVEL 3 COMMUNICATIONS, LLC - WI 2001-06-28 yes yes
920-696 Frontier FRONTIER NORTH INC. - WI – yes yes
920-761 NUSO, LLC 2023-02-06 yes yes
920-985 EON TELECOM, INC. 2024-10-08 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
LEVEL 3 COMMUNICATIONS, LLC - WI Lumen 1 25%
FRONTIER NORTH INC. - WI Frontier 1 25%
NUSO, LLC – 1 25%
EON TELECOM, INC. – 1 25%

Frequently asked

Which prefixes belong to CLYMAN in area code 920?

4 blocks: 341, 696, 761, 985. The table above gives the holder of each.

Which carriers have numbers in CLYMAN?

LEVEL 3 COMMUNICATIONS, LLC - WI (1 block), FRONTIER NORTH INC. - WI (1 block), NUSO, LLC (1 block), EON TELECOM, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CLYMAN 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