IPv4 prefix
133.69.0.0/16
- IP Prefix (CIDR)
- 133.69.0.0/16
- Subnet Mask
- 255.255.0.0
- Address Count
- 65,536
- Handle
- IRT-JPNIC-JP
- Country
-
Japan (JP)
- Address
- Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda Chiyoda-ku, Tokyo 101-0047, japan
- Registry
- APNIC
- Registered Prefix
- 133.0.0.0/8 (133.0.0.0 - 133.255.255.255)
| Announced Prefix | Relationship | Origin ASN | Description | Country | First Address | Last Address |
|---|---|---|---|---|---|---|
| 133.69.0.0/16 | Exact | AS2523 | Internet Technology Research Consortium |
Japan (JP)
|
133.69.0.0 | 133.69.255.255 |
| 133.69.160.0/22 | More specific | AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies |
Japan (JP)
|
133.69.160.0 | 133.69.163.255 |
| 133.69.168.0/21 | More specific | AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies |
Japan (JP)
|
133.69.168.0 | 133.69.175.255 |
| 133.69.176.0/24 | More specific | AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies |
Japan (JP)
|
133.69.176.0 | 133.69.176.255 |
| 133.69.184.0/24 | More specific | AS45688 | The University of Tokyo Interfaculty Initiative in Information Studies |
Japan (JP)
|
133.69.184.0 | 133.69.184.255 |