AS59
University of Wisconsin Madison Education registered in United States
16IPv4 prefixes
1IPv6 prefixes
100%RPKI-valid
#12,725AS Rank
327/327RIS visibility
#2,031Rank in United States
1986-01-21Allocated
University of Wisconsin Madison (AS59) — Education, registered in United States. announces 16 IPv4 prefixes + 1 IPv6 prefixes. Rank in United States: #2031. Allocated: 1986-01-21.
IPv4 16IPv6 1
Announced prefixes · 17
- v4 128.104.0.0/16 valid
- v4 128.105.0.0/16 valid
- v4 128.105.68.0/23 valid
- v4 144.92.0.0/16 valid
- v4 146.151.0.0/16 valid
- v4 192.12.220.0/24 valid
- v4 192.12.223.0/24 valid
- v4 192.12.224.0/24 valid
- v4 192.86.79.0/24 valid
- v4 198.133.224.0/24 valid
- v4 198.133.225.0/24 valid
- v4 198.51.246.0/24 valid
- v4 198.51.247.0/24 valid
- v4 198.51.254.0/24 valid
- v4 205.213.248.0/22 valid
- v4 72.33.0.0/16 valid
- v6 2607:f388::/32 valid
RPKI: rpki.cloudflare.com · 2026-06-17
Routing: 16 IPv4 · 1 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17
Prefix history
Data table
| Day | Announced prefixes |
|---|---|
| 2026-06-12 | 17 |
| 2026-06-13 | 17 |
Internet Exchanges · 1
- MadIX Madison 10 Gbps
Facilities · 4
- Level(3) Chicago (Kingsbury) Chicago
- Network 222 Madison
- Northwestern University co-location facility Chicago
- University of Wisconsin-Madison Madison
AS topology · Customer cone 1
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