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

DE FOREST prefixes in area code 608

NANPA records 4 assigned NXX blocks to rate center DE FOREST in area code 608, 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. 2 holders hold those blocks, the largest being BANDWIDTH.COM CLEC, LLC - WI (2), BRIGHTSPEED OF WESTERN WISCONSIN, LLC (2). The earliest assignment on record here is 2017-09-28 and the most recent 2022-01-18. 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 353 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 0.5% of 608
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
608-801 Bandwidth BANDWIDTH.COM CLEC, LLC - WI 2022-01-18 yes yes
608-842 Brightspeed BRIGHTSPEED OF WESTERN WISCONSIN, LLC – yes yes
608-846 Brightspeed BRIGHTSPEED OF WESTERN WISCONSIN, LLC – no yes
608-912 Bandwidth BANDWIDTH.COM CLEC, LLC - WI 2017-09-28 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
BANDWIDTH.COM CLEC, LLC - WI Bandwidth 2 50%
BRIGHTSPEED OF WESTERN WISCONSIN, LLC Brightspeed 2 50%

Frequently asked

Which prefixes belong to DE FOREST in area code 608?

4 blocks: 801, 842, 846, 912. The table above gives the holder of each.

Which carriers have numbers in DE FOREST?

BANDWIDTH.COM CLEC, LLC - WI (2 blocks), BRIGHTSPEED OF WESTERN WISCONSIN, LLC (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is DE FOREST 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 608

All 785 prefixes in 608