212.144.52.in-addr.arpa.X2.AMAZONAWS.COMPDNS1.ULTRADNS.NETX1.AMAZONAWS.COMX3.AMAZONAWS.ORGX4.AMAZONAWS.ORGhttps://rdap.arin.net/registry/domain/212.144.52.in-addr.arpa.[https://whois.arin.net/rest/rdns/212.144.52.in-addr.arpa.]2016-08-10T15:32:07-04:00