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ASN Lookup Tool
AS3128 BRUWS-AS3128

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS3128
Organisation
University of Wisconsin System
Name
BRUWS-AS3128
Total IPv4 Addresses
655,358
Total IPv4 Prefixes
24
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#479 out of 77,693
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1993-11-17
Registration Last Change
2018-03-07
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS7018
US flagAT&T Services, Inc.
AS4181
US flagTDS TELECOM
AS2381
US flagWiscNet
AS6939
US flagHurricane Electric LLC
AS1299
SE flagArelion Sweden AB
Showing 5 of 10
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS59
US flagUniversity of Wisconsin Madison
AS7050
US flagUniversity of Wisconsin - Milwaukee
AS19184
US flagUniversity of Wisconsin - Eau Claire
AS46103
US flagUniversity of Wisconsin Whitewater
AS47065
US flagUSC / UFMG PEERING Research Testbed
Showing 5 of 6
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix131.210.0.0/16
Range From131.210.0.0
Range To131.210.255.255
Prefix137.81.0.0/16
Range From137.81.0.0
Range To137.81.255.255
Prefix137.104.0.0/16
Range From137.104.0.0
Range To137.104.255.255
Prefix138.49.0.0/16
Range From138.49.0.0
Range To138.49.255.255
Prefix139.225.0.0/16
Range From139.225.0.0
Range To139.225.255.255
Showing 5 of 24
IPv6 Active Prefixes
Prefix2600:1d00::/28
Range From2600:1d00::
Range To2600:1d0f:ffff:ffff:ffff:ffff:ffff:ffff
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.