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

VASSAR prefixes in area code 989

NANPA records 6 assigned NXX blocks to rate center VASSAR in area code 989, 0.8% of the 723 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 INTERACTIVE SERVICES NETWORK, INC. (1), ONVOY, LLCV - MI (1), 123.NET, LLC (1). The earliest assignment on record here is 2001-11-01 and the most recent 2022-02-28. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 0.8% of 989
6 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
989-432 INTERACTIVE SERVICES NETWORK, INC. 2001-11-01 no yes
989-455 Onvoy ONVOY, LLCV - MI 2010-02-19 yes yes
989-571 123.NET, LLC 2002-08-12 no yes
989-767 TON80 COMMUNICATIONS, LLC 2022-02-28 yes yes
989-823 AT&T MICHIGAN BELL TEL CO – yes yes
989-882 Lumen LEVEL 3 COMMUNICATIONS, LLC - MI 2004-10-20 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
INTERACTIVE SERVICES NETWORK, INC. – 1 16.7%
ONVOY, LLCV - MI Onvoy 1 16.7%
123.NET, LLC – 1 16.7%
TON80 COMMUNICATIONS, LLC – 1 16.7%
MICHIGAN BELL TEL CO AT&T 1 16.7%
LEVEL 3 COMMUNICATIONS, LLC - MI Lumen 1 16.7%

Frequently asked

Which prefixes belong to VASSAR in area code 989?

6 blocks: 432, 455, 571, 767, 823, 882. The table above gives the holder of each.

Which carriers have numbers in VASSAR?

INTERACTIVE SERVICES NETWORK, INC. (1 block), ONVOY, LLCV - MI (1 block), 123.NET, LLC (1 block), TON80 COMMUNICATIONS, LLC (1 block), MICHIGAN BELL TEL CO (1 block), LEVEL 3 COMMUNICATIONS, LLC - MI (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is VASSAR 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 989

All 723 prefixes in 989