WiscNet
AS2381 is WiscNet (wiscnet.net). It announces 506,880 IPv4 addresses in 37 prefixes, and 2 IPv6 prefixes.
United States· ARIN· allocated 1993-02-03· 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 States506,880 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- WISCNET1-AS
- name
- WiscNet
- org
- WISC-Z
- org name
- WiscNet
- org address
- 605 Science Drive, Madison, WI, 53711
- org city
- Madison
- org country
- US
- country
- US
- source
- arin
- created
- 1993-02-03
- updated
- 2024-02-28
- abuse name
- Abuse
- abuse email
- abuse@wiscnet.net
- abuse phone
- +1-608-442-6761
- abuse kind
- role
- abuse city
- Madison
- abuse country
- US
- admin name
- WiscNet NIC
- admin email
- nic@wiscnet.net
- admin phone
- +1-608-442-6761
- admin kind
- role
- admin city
- Madison
- admin country
- US
- tech
- WN29-ORG-ARIN
- tech name
- WiscNet NIC
- tech email
- nic@wiscnet.net
- tech phone
- +1-608-442-6761
- 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 IP419watchguard0.08%
- anyip, geonode, thordata0.02%
- None here
- floppydata0.00%
- None here
- None here
- Hosting IP2,5600.51%
- None here
- None here
- None here
- SSH IP1410.03%
- SMTP IP750.01%
- 0.00%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 64.189.15.0/24 | United States | not found | 20 | 2026-10-02 |
| 140.104.0.0/16 | United States | not found | 20 | 2026-10-02 |
| 140.189.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 143.109.64.0/19 | United States | not found | 20 | 2026-10-02 |
| 143.109.192.0/19 | United States | not found | 20 | 2026-10-02 |
| 144.89.0.0/18 | United States | not found | 20 | 2026-10-02 |
| 148.59.44.0/24 | United States | not found | 20 | 2026-10-02 |
| 160.32.0.0/22 | United States | not found | 20 | 2026-10-02 |
| 165.128.0.0/16 | United States | not found | 20 | 2026-10-02 |
| 170.125.0.0/16 | United States | not found | 20 | 2026-10-02 |
| 170.125.238.0/23 | United States | not found | 20 | 2026-10-02 |
| 192.156.230.0/24 | United States | not found | 20 | 2026-10-02 |
| 192.206.48.0/24 | United States | not found | 20 | 2026-10-02 |
| 198.150.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 199.197.64.0/18 | United States | not found | 20 | 2026-10-02 |
| 199.233.44.0/23 | United States | not found | 19 | 2026-10-02 |
| 199.233.44.0/24 | United States | not found | 19 | 2026-10-02 |
| 199.233.45.0/24 | United States | not found | 19 | 2026-10-02 |
| 199.233.84.0/24 | United States | not found | 20 | 2026-10-02 |
| 199.233.86.0/24 | United States | not found | 20 | 2026-10-02 |
| 199.233.142.0/24 | United States | not found | 20 | 2026-10-02 |
| 199.242.176.0/24 | United States | not found | 20 | 2026-10-02 |
| 199.248.186.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.128.233.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.128.234.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.128.235.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.128.236.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.128.237.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.128.238.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.128.240.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.128.241.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.128.242.0/24 | United States | not found | 20 | 2026-10-02 |
| 204.145.232.0/24 | United States | not found | 20 | 2026-10-02 |
| 205.213.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 208.85.28.0/22 | United States | not found | 20 | 2026-10-02 |
| 216.56.0.0/16 | United States | valid | 20 | 2026-10-02 |
| 216.56.252.0/23 | United States | valid | 20 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2001:4e0::/32 | United States | valid | 20 | 2026-10-02 |
| 2620:11f:f000::/40 | United States | not found | 20 | 2026-10-02 |
Test the real build first.
An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.