Data as of Nov 3, 2026
Autonomous system
AS131159
Yamagata University
Announces 65,536 addresses in 6 prefixes. None of it is anonymizer space.
Type
Education
JP
Proxy activity, 30 days
19 exits
Announced prefixes
| Prefix | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|
| 133.24.0.0/16 since Sep 2016 | Business | 19 | Japan Network Information Center | |
| 133.24.0.0/18 since Aug 2021 | Business | 5 | Japan Network Information Center | |
| 133.24.64.0/18 since Aug 2021 | Business | 9 | Japan Network Information Center | |
| 133.24.128.0/18 since Aug 2021 | Business | Japan Network Information Center | ||
| 133.24.192.0/19 since Aug 2021 | Business | 5 | Japan Network Information Center | |
| 133.24.248.0/23 since Dec 2025 | Business | Japan Network Information Center |
Residential-proxy exposure
Spread
13
/24s with at least one exit
Providers
11
selling exits here
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 133.24.104.0/24 | 0 | 4 | |
| 133.24.2.0/24 | 0 | 2 | |
| 133.24.37.0/24 | 0 | 2 | |
| 133.24.77.0/24 | 0 | 2 | |
| 133.24.113.0/24 | 0 | 1 | |
| 133.24.87.0/24 | 0 | 1 | |
| 133.24.26.0/24 | 0 | 1 | |
| 133.24.119.0/24 | 0 | 1 | |
| 133.24.208.0/24 | 0 | 1 | |
| 133.24.209.0/24 | 0 | 1 | |
| 133.24.212.0/24 | 0 | 1 | |
| 133.24.214.0/24 | 0 | 1 | |
| 133.24.222.0/24 | 0 | 1 |
Proxy providers listing exits
- BuyingProxy
- Datarama
- EnigmaProxy
- Evomi
- InfiniteProxies
- NovaProxy
- ProxyEmpire
- RainProxy
- Shifter
- ThunderProxy
- VantageProxies
Proxy activity
Oct 4, 2026 – Nov 2, 2026
AS131159, day by day
463 observations
Network & history
Profile
- Registered
- Oct 3, 2008
- Domain
- yamagata-u.ac.jp
- Website
- www.yamagata-u.ac.jp/
Routing patterns
How its announcements have moved
Arrivals