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Data as of Nov 9, 2026

192.51.222.0/24

12 residential-proxy exits · 30 days

The University of Tokyo · space held by imported inetnum object for JNIC

Announcement
192.51.208.0/20
No RPKI
Announced by
AS2501
Type
Business
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
12
4.7% of its addresses · 30 days
Providers
31
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

686 observations

Proxy providers listing exits

  • BirdProxies
  • BottingTools
  • Byteful
  • Datarama
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GonzoProxy
  • Infatica
  • InfiniteProxies
  • LemonBright
  • LemonLabs
  • MangoProxy
  • NodeProxy
  • NovaProxy
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyGeo
  • Proxyma
  • RainProxy
  • Shifter
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VitalExclusive

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
192.51.194.0 - 192.51.239.25511,776JAPAN-INET-BLOCK4imported inetnum object for JNICALLOCATED PORTABLE—hostmaster@nic.ad.jp
└ 192.51.208.0/204,096UTNETUniversity of TokyoALLOCATED PORTABLE—hostmaster@nic.ad.jp

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 192.51.208.0/20

Prefix
192.51.208.0/20
Announced by
AS2501 The University of Tokyo
Type
Business
Proxy exits
12
RPKI
No RPKI
Netname
UTSNET-CIDR-BLK-JP
Registrant
University of Tokyo
RIR
APNIC
Registry

Holder

Organization
imported inetnum object for JNIC
Range
192.51.194.0 - 192.51.239.255
Registration type
ALLOCATED PORTABLE
Origin network

AS2501

JP
Name
The University of Tokyo
Type
Education
Registered
Apr 5, 2002
Domain
u-tokyo.ac.jp
Spamhaus ASN-DROP
not listed