IP / ASN / Domain Lookup
IP Lookup Result
IP Address
163.51.0.0
Location
Japan,Tokyo,Chiyoda City
ASN
Company
ISP
Research Organization of Information and Systems, National Institute of Informatics
Longitude
139.7536
139.7536
Latitude
35.694
35.694
Native IP
DataCenter
25%Risk Score
25% Risk Score
IP Address (Decimal)
2738028544
Latency
US
-
HK
-
CA
-
GB
-
DE
-
AU
-
ASN History
ASN History | Network | AS Organization | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 163.51.0.0/16 | ISP Research Organization of Information and Systems, National Institute of Informatics | Australia | 📅 2003-01-11 19:12 | 📅 2025-10-20 11:55 | |
| 163.51.0.0/16 | ISP NTT Communications Corporation | Japan | 📅 2001-10-28 01:44 | 📅 2004-02-06 10:43 | |
| 163.51.0.0/16 | ENT WIDE Project | Japan | 📅 2003-06-27 10:19 | 📅 2003-06-27 11:36 | |
| 163.51.0.0/16 | ISP Availo Networks AB | Sweden | 📅 2002-04-10 01:41 | 📅 2002-04-17 04:08 | |
| 163.51.0.0/16 | IDC JPNIC-2Byte-ASBLOCK-AP | -- | 📅 2001-11-10 05:31 | 📅 2002-03-22 08:18 |
Company History
Company History | Network | First Seen | Last Seen |
|---|---|---|---|
ISP APNIC-ERX-163 | 163.0.0.0/8 | 📅 1993-05-01 08:00 | 📅 2025-10-30 07:58 |
ISP KNURINK | 163.51.0.0/16 | 📅 2017-07-10 10:22 | 📅 2025-10-26 18:37 |
Registration History
Status | Network | Registry | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 163.0.0.0/8 |  ARIN | -- | 📅 1993-05-01 08:00 | 📅 2025-10-30 07:58 | |
| 163.51.0.0/16 |  APNIC | Japan | 📅 2017-07-10 10:22 | 📅 2025-10-26 18:37 |
