Data as of Nov 10, 2026
Autonomous system

AS4693

CSK-IT Management Corporation

Announces 45,056 addresses in 7 prefixes. None of it is anonymizer space.

Type
Hosting
JP

Announced prefixes

Arrived
PrefixTypeHolderRPKI
203.140.0.0/19
since Aug 2016
HostingJapan Network Information Center
203.179.32.0/19
since Aug 2016
HostingJapan Network Information Center
210.159.96.0/19
since Aug 2016
HostingJapan Network Information Center
210.166.96.0/19
since Aug 2016
HostingJapan Network Information Center
210.249.192.0/19
since Aug 2016
HostingJapan Network Information Center
211.7.192.0/21
since Aug 2016
HostingJapan Network Information Center
211.7.208.0/21
since Aug 2016
HostingJapan Network Information Center

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it