University of Wisconsin Madison
AS59 is University of Wisconsin Madison (wisc.edu). It announces 331,008 IPv4 addresses in 16 prefixes, and 1 IPv6 prefixes.
United States· ARIN· allocated 1986-01-21· education
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States331,008 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- WISC-MADISON-AS
- name
- University of Wisconsin Madison
- org
- UWM-3
- org name
- University of Wisconsin Madison
- org address
- 1210 W Dayton, B332, Madison, WI, 53706
- org city
- Madison
- org country
- US
- country
- US
- source
- arin
- created
- 1986-01-21
- updated
- 2012-03-02
- abuse name
- University of Wisconsin Madison Abuse POC
- abuse email
- abuse@wisc.edu
- abuse phone
- +1-608-264-4357
- abuse kind
- role
- abuse city
- Madison
- abuse country
- US
- admin name
- Network Operations
- admin email
- hostadmin@doit.wisc.edu
- admin phone
- +1-608-263-4188
- admin kind
- role
- admin city
- Madison
- admin country
- US
- tech name
- Network Operations Center
- tech email
- noc@doit.wisc.edu
- tech phone
- +1-608-263-4188
- tech kind
- role
- tech city
- Madison
- tech country
- US
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP510.02%
- geonode, anyip, thordata0.07%
- None here
- None here
- None here
- None here
- Hosting IP15,8724.80%
- None here
- None here
- None here
- SSH IP1,0460.32%
- 0.00%
- 0.01%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 72.33.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 128.104.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 128.105.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 128.105.68.0/23 | United States | valid | 4 | 2026-10-02 |
| 144.92.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 146.151.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 192.12.220.0/24 | United States | valid | 20 | 2026-10-02 |
| 192.12.223.0/24 | United States | valid | 20 | 2026-10-02 |
| 192.12.224.0/24 | United States | valid | 20 | 2026-10-02 |
| 192.86.79.0/24 | United States | valid | 20 | 2026-10-02 |
| 198.51.246.0/24 | United States | valid | 20 | 2026-10-02 |
| 198.51.247.0/24 | United States | valid | 20 | 2026-10-02 |
| 198.51.254.0/24 | United States | valid | 20 | 2026-10-02 |
| 198.133.224.0/24 | United States | valid | 20 | 2026-10-02 |
| 198.133.225.0/24 | United States | valid | 20 | 2026-10-02 |
| 205.213.248.0/22 | United States | valid | 18 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2607:f388::/32 | United States | valid | 20 | 2026-10-02 |
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