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Be sure to check out the main Bogon Reference for more information on the project and terminology used, and why it is important to keep your bogon filters up-to-date.

We provide bogon tracking through DNS via several reversed-IP zones. These zones are queried by reversing the octets of an IPv4 address (or nibbles of an IPv6 address) and appending a zone name, much like reverse DNS ( and and DNSBL queries.

If the IP address represented by a given query is a bogon, the response will be an A RR of You may also query for a TXT RR, which will indicate the bogon prefix within which the given address resides (no TXT record will be present for non-bogon queries).

Technical Details

We are unable to remove you from any blacklist. You need to visit the blacklist directly for removal.
If any information concerning this DNSBL is incorrect, missing, or out of date, please contact us.