|Realtime Blacklist (RBL)||
Realtime Blackhole List
The Reverse whois will do a reverse IP lookup. If you type in an IP address, it will attempt to locate a dns PTR record for that IP address. You can then click on the results to find out more about that IP Address. Reverse WHOIS is based on the first global, searchable database providing clients with ownership and relationship information for entities on the Internet, including domain names, IP addresses, registrars, registries and ISPs.