Data as of Nov 10, 2026
Autonomous system

AS131961

Dokkyo University

Announces 1,024 addresses in 3 prefixes. None of it is anonymizer space.

Type
Education
JP

Announced prefixes

Arrived
PrefixTypeHolderRPKI
202.252.104.0/22
since Jul 2020
BusinessJapan Network Information Center
202.252.104.0/23
since Jul 2020
BusinessJapan Network Information Center
202.252.106.0/23
since Jul 2020
BusinessJapan Network Information Center

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it