You normally need a reverse dns lookup tool like http://remote.12dt.com/ or http://whois.domaintools.com/ or http://whois.webhosting.info/
But none of these tools could find details of the above mentioned IP!
But none of these tools could find details of the above mentioned IP!
dig @<myDnsServer> -x 119.70.119.30
No dice on any of them. Also, I was under the impression that most times there's only one PTR record for a given IP, which means you'd get at most one domain name. Not sure about that, though.