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Free network identity tool

Trace an IP address or ASN to its authoritative RIR evidence.

MailDNS starts with the official IANA IPv4, IPv6, or ASN bootstrap registry, then queries only the selected Regional Internet Registry over bounded HTTPS. See the allocation range, organization, public abuse contacts, referrals, redirects, and exact source provenance. No account is required.

Try , or . The query always starts at IANA; users cannot supply an RDAP URL.

Service discovery follows RFC 9224 and IANA's published IPv4, IPv6, and ASN bootstrap files.

Response interpretation follows the standard RDAP object model in RFC 9083. Provider extensions are shown only when present in the authoritative response.