AS3128 University of Wisconsin System - bgp.tools

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University of Wisconsin System

AS Number 3128
Website https://www.wisconsin.edu

Overview
Prefixes
Connectivity
Whois
IX

Registered on: 17 Nov 1993 (32 years old)
Registered to: ARIN-BRUWS (arin)

Network status: Active, Allocated under ARIN

Network type: Eyeball

Prefixes Originated: 13 IPv4, 1 IPv6

Upstreams

AS1299 - Arelion (fka. Telia Carrier)
AS2381 - WiscNet
AS6939 - Hurricane Electric LLC
AS7018 - AT&T Enterprises, LLC
AS11164 - Internet2 I2PX

Rankings

#134 for Originated IPv4 Space in United States

#73 for Originated IPv6 Space in United States

Tags:

Prefixes Originated

13 IPv4, 1 IPv6

Addresses Originated

2562 /24's of IPv4

1048576 /48's of IPv6

	Prefix	Description
	131.210.0.0/16	University of Wisconsin-Parkside
	137.81.0.0/16	University of Wisconsin-Superior
	137.104.0.0/16	University of Wisconsin - Platteville
	138.49.0.0/16	University of Wisconsin-La Crosse
	138.49.160.0/22	University of Wisconsin-La Crosse
	139.225.0.0/16	University of Wisconsin - River Falls
	141.233.0.0/16	University of Wisconsin Oshkosh
	143.200.0.0/16	University of Wisconsin - Green Bay
	143.235.0.0/16	University of Wisconsin System Administration
	143.236.0.0/16	University of Wisconsin-Stevens Point
	144.13.0.0/16	University of Wisconsin - Stout
	146.151.3.0/24	University of Wisconsin Madison
	192.35.81.0/24	University of Wisconsin-Parkside
	2600:1d00::/28	University of Wisconsin System

Last Update: 2026-03-05T03:25:48Z UTC

Member of the following AS-SETs

-	Member	ASN Count