• Network Info
  • Whois
  • RDAP
  • DNS
  • Certs
  • IRR
  • Propagation
  • Visibility
  • Routes
  • Traceroute
Announced By
OriginOrigin RegistrantPrefixPrefix Registrant
AS4837 China Unicom Backbone
IRR Valid
221.0.0.0/15
China Unicom Shandong province network

Less Specific Announcements
OriginOrigin RegistrantPrefixPrefix Registrant
AS4766 Korea Telecom 221.0.0.0/13 Asia Pacific Network Information Centre
Matching Delegations
RegistryStatusPrefixCC
apnic allocated 221.0.0.0/15 CN China