56.20.64.in-addr.arpa.DNS2.TROUBLE-FREE.NETDNS.TROULBE-FREE.NEThttps://rdap.arin.net/registry/domain/56.20.64.in-addr.arpa.https://whois.arin.net/rest/rdns/56.20.64.in-addr.arpa.2006-02-24T13:41:19-05:00