Data as of Nov 4, 2026

133.221.3.0/24

No anonymizer space · no proxy exits in 30 days

Internet Initiative Japan Inc. · space held by Japan Network Information Center

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

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
133.221.0.0/16
since Apr 2014
AS2497Internet providerJapan Network Information Center

Network & registry

Origin network

AS2497

JP
Name
Internet Initiative Japan Inc.
Type
Internet provider
Registered
Apr 5, 2002
Domain
iij.ad.jp
Website
www.iij.ad.jp/en/
Spamhaus ASN-DROP
not listed