Data as of Nov 13, 2026

133.40.0.0/16

No anonymizer space · no proxy exits in 30 days

National Institutes of Natural Sciences National Astronomical Observatory of JAPAN · space held by Japan Network Information Center

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

Network & registry

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Rotating
First seen
May 2005
Current origin since
Apr 2023 · 3.6 yr
Origin networks
3
Last change of origin
Apr 2023
Recorded history

History

Handoffs
2