ASN Lookup – Networks, Upstreams and Prefixes

AS3128

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS3128

NameBRUWS-AS3128

OrganisationUniversity of Wisconsin System

Country –

RIRARIN

Allocated17.11.1993

Network Overview

IPv4 Prefixes13

IPv6 Prefixes1

Upstreams IPv49

BGP Peers IPv46

Upstreams (Transit Providers)

IPv4

AS11164 INTERNET2-I2PX

AS11537 INTERNET2-RESEARCH-EDU

AS1299 TWELVE99

AS2381 WISCNET1-AS

AS32621 TCV-511

AS396450 INTERNET2-2

AS64289 MACARNE

AS6939 HURRICANE

AS7018 ATT-INTERNET4

IPv4 Prefixes (13 total)

144.13.0.0/16

131.210.0.0/16

138.49.160.0/22

141.233.0.0/16

192.35.81.0/24

139.225.0.0/16

143.200.0.0/16

143.235.0.0/16

138.49.0.0/16

137.81.0.0/16

143.236.0.0/16

137.104.0.0/16

143.235.33.0/24

IPv6 Prefixes (1 total)

2600:1d00::/28

BGP Peers IPv4 (6 total)

AS19184

AS394049

AS46103

AS47065

AS59

AS7050

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What is an ASN?

An Autonomous System Number (ASN) is a unique number assigned to a network on the internet. Upstreams are the transit providers through which the AS reaches the internet. Peers are networks with which direct traffic exchange takes place. Prefixes are the IP address ranges that the AS announces to the internet. Data via RIPE NCC RDAP and RIPEstat API.