Regional Internet Registries (RIRs)


The Regional Internet Registries (RIR) are regional organisation that manages the internet in cooperation with IANA.

They have the authority within their regions:

They provide therefore also the whois database to identify the owner of this resources.


The Number Resources Organization (NRO) is a coordinating body that unites the five RIRs.


  • RIPE database: Europe,…
  • ARIN: America -
  • Ripe Ncc
  • Lacnic
  • Apnic
  • Afrinic

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