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

OSSEO prefixes in area code 715

NANPA records 4 assigned NXX blocks to rate center OSSEO in area code 715, 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 ONVOY, LLC - WI (1), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI (1), NEW CINGULAR WIRELESS PCS, LLC - IL (1). The earliest assignment on record here is 2001-11-27 and the most recent 2001-11-27. 4 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 517 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 0.5% of 715
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
715-200 Onvoy ONVOY, LLC - WI – yes yes
715-533 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 2001-11-27 yes yes
715-586 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
715-597 Brightspeed BRIGHTSPEED OF CENTRAL WISCONSIN, LLC – 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 1 25%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI Verizon 1 25%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 25%
BRIGHTSPEED OF CENTRAL WISCONSIN, LLC Brightspeed 1 25%

Frequently asked

Which prefixes belong to OSSEO in area code 715?

4 blocks: 200, 533, 586, 597. The table above gives the holder of each.

Which carriers have numbers in OSSEO?

ONVOY, LLC - WI (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), BRIGHTSPEED OF CENTRAL WISCONSIN, 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 OSSEO 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 715

All 785 prefixes in 715