Data as of Nov 15, 2026

133.74.192.0/18

No anonymizer space · no proxy exits in 30 days

Research Organization of Information and Systems, National Institute of Informatics · space held by Japan Network Information Center

Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
133.74.0.0/16
since May 2005
AS2907BusinessJapan Network Information Center

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Oct 2008
Current origin since
Oct 2008 · 18 yr
Origin networks
1