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Data as of Nov 3, 2026
Autonomous system

AS2501

The University of Tokyo

Announces 200,704 addresses in 4 prefixes. None of it is anonymizer space.

Type
Education
JP
Proxy activity, 30 days
58 exits

Announced prefixes

All 4
Arrived
PrefixTypeProxy exitsHolderRPKI
130.69.0.0/16
since May 2005
BusinessUniversity of Tokyo
133.11.0.0/16
since May 2005
Business3Japan Network Information Center
157.82.0.0/16
since May 2005
Business42
1 always on
University of Tokyo
192.51.208.0/20
since May 2005
Business12imported inetnum object for JNIC

Residential-proxy exposure

Always-on exits
1
1.7% of its exits
Spread
18
/24s with at least one exit
Providers
53
selling exits here

/24s with the most always-on exits

/24Always-on exitsProxy exits
157.82.242.0/2411
157.82.128.0/24015
157.82.122.0/24013
192.51.222.0/24012
157.82.233.0/2402
157.82.124.0/2402
157.82.13.0/2401
157.82.60.0/2401
157.82.54.0/2401
133.11.58.0/2401
157.82.144.0/2401
157.82.150.0/2401
157.82.204.0/2401
157.82.227.0/2401
157.82.9.0/2401
133.11.193.0/2401
157.82.243.0/2401
133.11.76.0/2401

Proxy providers listing exits

  • 2Captcha
  • AnyIP
  • BartProxies
  • BirdProxies
  • BottingTools
  • ByteProxies
  • Byteful
  • CliProxy
  • DataImpulse
  • Datarama
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • GeekProxy
  • Geonix
  • Geonode
  • GonzoProxy
  • HydraProxy
  • IPOasis
  • IPPeak
  • Infatica
  • InfiniteProxies
  • LemonBright
  • LemonLabs
  • LightningProxies
  • MangoProxy
  • NodeMaven
  • NodeProxy
  • NovaProxy
  • PSBProxy
  • PrivateByte
  • Proxiware
  • Proxy-Seller
  • Proxy4U
  • ProxyEmpire
  • ProxyGeo
  • ProxyRack
  • Proxyma
  • RainProxy
  • ResiProxies
  • Shifter
  • Thordata
  • VProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy

Proxy activity

Oct 4, 2026 – Nov 2, 2026

AS2501, day by day

5.3K observations

Network & history

NetworkHistory
Profile
Registered
Apr 5, 2002
Domain
u-tokyo.ac.jp