IP / ASN / Domain Lookup
IP Lookup Result
IP Address
133.73.128.0
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
23%Risk Score
23% Risk Score
IP Address (Decimal)
2236186624
Latency
US
-
HK
-
CA
-
GB
-
DE
-
AU
-
ASN History
ASN History | Network | AS Organization | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 133.73.0.0/16 | ISP Research Organization of Information and Systems, National Institute of Informatics | Australia | 📅 2020-01-13 04:29 | 📅 2025-10-20 11:55 | |
| 133.73.128.0/19 | ISP Internet Initiative Japan Inc. | Australia | 📅 2018-07-06 09:15 | 📅 2018-07-24 16:13 | |
| 133.73.0.0/16 | ISP Internet Initiative Japan Inc. | Australia | 📅 2017-01-01 08:35 | 📅 2018-04-22 08:32 | |
| 133.73.0.0/16 | ENT KDDI CORPORATION | Japan | 📅 2001-10-27 05:48 | 📅 2004-02-06 13:53 | |
| 133.73.0.0/16 | ENT WIDE Project | Japan | 📅 2002-04-29 23:39 | 📅 2002-04-29 23:40 | |
| 133.73.0.0/16 | ISP Availo Networks AB | Sweden | 📅 2002-04-11 03:13 | 📅 2002-04-15 05:18 |
Company History
Company History | Network | First Seen | Last Seen |
|---|---|---|---|
ISP JPNIC-NET-JP-ERX | 133.0.0.0/8 | 📅 2022-11-01 12:33 | 📅 2025-10-30 06:12 |
Registration History
Status | Network | Registry | Country | First Seen | Last Seen |
|---|---|---|---|---|---|
| 133.0.0.0/8 |  APNIC | Japan | 📅 2022-11-01 12:33 | 📅 2025-10-30 06:12 |
