Reverse DNS (PTR) Lookup
Reverse DNS converts the IP to its in-addr.arpa (v4) or ip6.arpa (v6) form before querying.
About this tool
Reverse DNS (PTR) Lookup is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
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