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WHOIS / ASN / IP lookup (Seek0)

Look up an ASN, IP, or prefix with RDAP and PeeringDB data.

The lookup tool resolves an ASN, IP address, or prefix using RDAP (the modern successor to WHOIS) plus PeeringDB for network detail. It's the same engine behind our Seek0 brand.

What you can look up

  • An ASN (e.g. AS219271), org, name, and peering presence.
  • An IP address, the network and organization it belongs to.
  • A prefix, registration and origin detail.

Open it under Tools → Lookup. Queries run server-side through our Worker, so nothing about your network leaves your browser.