net.block

Reverse lookup and bogus check for a given subnet.

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info

Tools & resources
  • nslookup
  • dig

What's this?

net.block does nothing else than stepping through a given block and performing a reverse lookup on the address. If a dns entry exists, it tries to compare the lookup to the original address.

Reason for building this service

Mainly out of curiosity. But it's a good way to find out if your neighbor uses his netblock for pr0n hosting ;)