• Network Info
  • Whois
  • RDAP
  • DNS
  • IRR
  • Propagation
  • Visibility
  • Routes
  • Traceroute
Announced By
OriginOrigin RegistrantPrefixPrefix Registrant
AS3488 Information Systems Department, Japan Aerospace Exploration Agency
IRR Valid
133.74.0.0/17
Institute of Space and Astronautical Science,

Less Specific Announcements
OriginOrigin RegistrantPrefixPrefix Registrant
AS2907 Research Organization of Information and Systems, National Institute of Informatics
IRR Valid
133.74.0.0/16
Japan Network Information Center
Matching Delegations
RegistryStatusPrefixCC
apnic allocated 133.0.0.0/8 JP Japan