Searching for 39.121.72.12.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 12 ms
Searching for 39.121.72.12.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 155 ms
Searching for 39.121.72.12.in-addr.arpa. PTR record at emtu.mt.ns.els-gms.att.net. [99.99.99.128] ...took 107 ms
Searching for 39.121.72.12.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 155 ms
Searching for cmtu.mt.ns.els-gms.att.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for cmtu.mt.ns.els-gms.att.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 22 ms
Searching for cmtu.mt.ns.els-gms.att.net. A record at macu.ma.mt.np.els-gms.att.net. [99.99.99.130] ...took 108 ms
Searching for 39.121.72.12.in-addr.arpa. PTR record at cmtu.mt.ns.els-gms.att.net. [99.99.99.132]
...took 117 msSearching for cmtu.mt.ns.els-gms.att.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 22 ms
Searching for cmtu.mt.ns.els-gms.att.net. A record at macu.ma.mt.np.els-gms.att.net. [99.99.99.130] ...took 108 ms
Searching for 39.121.72.12.in-addr.arpa. PTR record at emtu.mt.ns.els-gms.att.net. [99.99.99.128] ...took 107 ms
Nameserver emtu.mt.ns.els-gms.att.net. reports: No such host 39.121.72.12.in-addr.arpa.
Total elapsed query time: 535 ms