Data as of Nov 10, 2026
Autonomous system
AS55390
Tokyo University of Science
Announces 65,536 addresses in 3 prefixes. None of it is anonymizer space.
Type
Education
JP
Proxy activity, 30 days
8 exits
Announced prefixes
| Prefix | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|
| 133.31.0.0/16 since Dec 2010 | Business | 8 | Japan Network Information Center | |
| 133.31.0.0/17 since Nov 2020 | Business | 6 | Japan Network Information Center | |
| 133.31.128.0/17 since Nov 2020 | Business | 2 | Japan Network Information Center |
Residential-proxy exposure
Spread
6
/24s with at least one exit
Providers
13
selling exits here
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 133.31.18.0/24 | 0 | 2 | |
| 133.31.89.0/24 | 0 | 2 | |
| 133.31.23.0/24 | 0 | 1 | |
| 133.31.87.0/24 | 0 | 1 | |
| 133.31.197.0/24 | 0 | 1 | |
| 133.31.219.0/24 | 0 | 1 |
Proxy providers listing exits
- BottingTools
- Byteful
- EnigmaProxy
- FLEETPROXY
- FloppyData
- NovaProxy
- Proxiware
- ProxyEmpire
- ProxyRack
- RainProxy
- Shifter
- VantageProxies
- ZENPROXY_PREMIUM
Proxy activity
Oct 11, 2026 – Nov 9, 2026
AS55390, day by day
508 observations
Network & history
Profile
- Registered
- Jan 18, 2010
- Domain
- tus.ac.jp
Routing patterns
How its announcements have moved
Arrivals