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Data as of Nov 6, 2026

202.145.18.0/23

No anonymizer space · no proxy exits in 30 days

Research Organization of Information and Systems, National Institute of Informatics · space held by Research Organization of Information and Systems, National Institute of Informatic

Announcement
this exact prefix
RPKI valid
Announced by
AS2907
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
202.145.16.0/22
since Nov 2017
AS2907Business1Research Organization of Information and Systems, National Institute of Informatic

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
202.145.16.0/221,024SINETResearch Organization of Information and Systems, National Institute of InformaticALLOCATED PORTABLE—abuse@sinet.ad.jp
└ 202.145.18.0/23512PUMPKINMiyazaki Prefectural Nursing UniversityASSIGNED NON-PORTABLE—hostmaster@nic.ad.jp

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Registry

Holder

Organization
Research Organization of Information and Systems, National Institute of Informatic
Range
202.145.16.0/22
Registration type
ALLOCATED PORTABLE
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