IP / ASN / Domain Lookup
IP Lookup Result
IP Address
137.81.0.21
Location
United States,Wisconsin,Superior
ASN
Company
ISP
University of Wisconsin System
Longitude
-91.8994
-91.8994
Latitude
46.4641
46.4641
Native IP
DataCenter
24%Risk Score
24% Risk Score
IP Address (Decimal)
2303787029
Latency
US
-
HK
-
CA
-
GB
-
DE
-
AU
-
ASN History
ASN History | Network | AS Organization | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 137.81.0.0/16 | EDU University of Wisconsin System | United States | 📅 2017-01-01 08:38 | 📅 2025-12-24 23:25 | |
| 137.81.0.0/16 | EDU WiscNet | United States | 📅 2001-10-27 05:48 | 📅 2012-01-30 23:55 | |
| 137.0.0.0/8 | ISP Verizon - LATAM | United States | 📅 2006-03-23 01:39 | 📅 2009-04-16 09:55 | |
| 137.0.0.0/8 | GOV RIPE NCC ASN block | -- | 📅 2006-02-28 23:19 | 📅 2006-02-28 23:26 | |
| 137.81.0.0/17 | EDU WiscNet | United States | 📅 2002-09-24 06:06 | 📅 2003-10-08 00:27 | |
| 137.81.0.0/16 | ISP Availo Networks AB | Sweden | 📅 2002-04-10 02:11 | 📅 2002-04-17 13:12 |
Company History
Company History | Network | First Seen | Last Seen |
|---|---|---|---|
ENT NET137 | 137.0.0.0/8 | 📅 1993-05-01 08:00 | 📅 2025-12-07 07:44 |
IDC NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 137.75.0.0/11 | 📅 2019-01-07 18:44 | 📅 2025-12-07 07:38 |
ISP UNIVERSITY-OF-WISCONSIN-SUPERIOR | 137.81.0.0/16 | 📅 1989-11-09 08:00 | 📅 2025-12-06 00:35 |
Registration History
Status | Network | Registry | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 137.0.0.0/8 |  ARIN | -- | 📅 1993-05-01 08:00 | 📅 2025-12-07 07:44 | |
| 137.75.0.0/11 |  RIPE | European Union | 📅 2019-01-07 18:44 | 📅 2025-12-07 07:38 | |
| 137.81.0.0/16 | ARIN | -- | 📅 1989-11-09 08:00 | 📅 2025-12-06 00:35 |
