IP / ASN / Domain Lookup
IP Lookup Result
IP Address
128.91.0.4
Location
United States,Pennsylvania,Philadelphia
ASN
Company
ENT
University of Pennsylvania
Longitude
-75.134
-75.134
Latitude
40.0076
40.0076
Native IP
DataCenter
29%Risk Score
29% Risk Score
IP Address (Decimal)
2153447428
Latency
US
-
HK
-
CA
-
GB
-
DE
-
AU
-
ASN History
ASN History | Network | AS Organization | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 128.91.0.0/16 | ENT University of Pennsylvania | United States | 📅 2006-08-02 14:16 | 📅 2025-11-20 16:33 | |
| 128.91.0.0/16 | UNK Unknown | -- | 📅 2020-01-04 14:25 | 📅 2020-01-04 15:02 | |
| 128.0.0.0/8 | ISP Teledom LLC | Russia | 📅 2017-05-04 07:14 | 📅 2017-05-04 14:42 | |
| 128.0.0.0/8 | UNK Unknown | -- | 📅 2006-02-28 23:19 | 📅 2006-02-28 23:26 | |
| 128.91.0.0/16 | ISP Cogent Communications | United States | 📅 2003-02-06 20:12 | 📅 2003-02-06 20:57 | |
| 128.91.0.0/16 | ISP Availo Networks AB | Sweden | 📅 2002-04-10 02:11 | 📅 2002-04-17 04:08 |
Company History
Company History | Network | First Seen | Last Seen |
|---|---|---|---|
ENT NET128 | 128.0.0.0/8 | 📅 1993-05-01 08:00 | 📅 2025-11-20 17:44 |
ENT UPENN | 128.91.0.0/16 | 📅 1985-09-18 08:00 | 📅 2025-11-20 16:33 |
Registration History
Status | Network | Registry | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 128.0.0.0/8 |  ARIN | -- | 📅 1993-05-01 08:00 | 📅 2025-11-20 17:44 | |
| 128.91.0.0/16 | ARIN | -- | 📅 1985-09-18 08:00 | 📅 2025-11-20 16:33 |
