IP Info

Reverse DNS plus ASN, network and country for an IP (via Team Cymru).

ASN, route and country data from Team Cymru (via DNS). No external API, nothing stored.

Related tools

WHOIS LookupRegistration, registrar, dates and nameservers for a domain (live WHOIS).Blacklist CheckCheck an IP against major DNS blacklists (RBLs).Port CheckerTest whether common or custom TCP ports are open on a host.DNS LookupDig-style lookup for A, AAAA, MX, TXT, NS, SOA, SRV, CAA, PTR — plus subdomain sweep.

Frequently asked questions

What information does the IP info tool return?

The reverse DNS (PTR) name plus the IP's autonomous system number (ASN), the network it belongs to, the announcing organisation, the registry (ARIN, RIPE, etc.) and the country.

Where does the ASN and network data come from?

It is looked up over DNS via the Team Cymru IP-to-ASN service. There is no third-party API and nothing is stored.

Is this IP geolocation?

It gives the country and network operator, which is accurate. Street-level IP geolocation is inherently approximate and is not what this tool provides.