19.20.in-addr.arpa.NS4-04.AZURE-DNS.INFONS2-04.AZURE-DNS.NETNS3-04.AZURE-DNS.ORGNS1-04.AZURE-DNS.COMhttps://rdap.arin.net/registry/domain/19.20.in-addr.arpa.https://whois.arin.net/rest/rdns/19.20.in-addr.arpa.2020-04-30T13:36:50-04:00