Summary

Country
US United States
Organization University of Wisconsin Madison
Domain wisc.edu
Number of IPv4 331,008
Number of IPv6 7.9228× 1028
AS Type Education
Registry ARIN
Allocated January 21, 1986 (about 39 years ago)
Updated March 02, 2012 (about 13 years ago)

IP Ranges

AS59 announces 15 IPv4 ranges and 1 IPv6 range.

That's a total of 331,008 IPv4 addresses and 7.9228× 1028 IPv6 addresses.

Prefix Organization Size Registry Status
72.33.0.0/16
US University of Wisconsin Madison
65,536 ARIN ALLOCATION
128.104.0.0/16
US University of Wisconsin Madison
65,536 ARIN ALLOCATION
128.105.0.0/16
US University of Wisconsin Madison
65,536 ARIN ALLOCATION
144.92.0.0/16
US University of Wisconsin Madison
65,536 ARIN ALLOCATION
146.151.0.0/16
US University of Wisconsin Madison
65,536 ARIN ALLOCATION
192.12.220.0/24
US University of Wisconsin Madison
256 ARIN ALLOCATION
192.12.223.0/24
US University of Wisconsin Madison
256 ARIN ALLOCATION
192.12.224.0/24
US University of Wisconsin Madison
256 ARIN ALLOCATION
192.86.79.0/24
US University of Wisconsin Madison
256 ARIN ALLOCATION
198.51.246.0/24
US University of Wisconsin Madison
256 ARIN ALLOCATION
198.51.247.0/24
US University of Wisconsin Madison
256 ARIN ALLOCATION
198.51.254.0/24
US University of Wisconsin Madison
256 ARIN ALLOCATION
198.133.224.0/24
US University of Wisconsin Madison
256 ARIN ALLOCATION
198.133.225.0/24
US University of Wisconsin Madison
256 ARIN ALLOCATION
205.213.248.0/22
US WiscNet
1,024 ARIN ALLOCATION
Prefix Organization Size Registry Status
2607:f388::/32
US University of Wisconsin Madison
7.9228× 1028 ARIN ALLOCATION

Peers

AS59 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.

Upstreams

AS59 connects to the global Internet via at least 2 upstream providers. In this setup, AS59 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS59 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.

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