Data as of Nov 4, 2026

133.74.0.0/16

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

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
133.74.0.0/17
since Oct 2008
AS3488BusinessJapan Network Information Center
133.74.128.0/18
since Oct 2008
AS3488BusinessJapan Network Information Center
133.74.192.0/18
since Oct 2008
AS2907BusinessJapan Network Information Center

Network & registry

Origin network

AS2907

JP
Name
Research Organization of Information and Systems, National Institute of Informatics
Type
Education
Registered
Aug 1, 2002
Domain
sinet.ad.jp
Website
www.sinet.ad.jp/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed