Data as of Nov 3, 2026
Autonomous system
AS45688
The University of Tokyo Interfaculty Initiative in Information Studies
Announces 3,584 addresses in 5 prefixes. None of it is anonymizer space.
Type
Education
JP
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 133.69.160.0/22 since Sep 2016 | Business | Japan Network Information Center | |
| 133.69.168.0/22 since Sep 2016 | Business | Japan Network Information Center | |
| 133.69.172.0/22 since Sep 2016 | Business | Japan Network Information Center | |
| 133.69.176.0/24 since Jan 2018 | Business | Japan Network Information Center | |
| 133.69.184.0/24 since Jan 2018 | Business | Japan Network Information Center |
Network & history
Profile
- Registered
- Apr 2, 2009
- Domain
- u-tokyo.ac.jp
- Industry
- Colleges, Universities, and Professional Schools
Routing patterns
How its announcements have moved
Arrivals