Hostname or IP
Type
Searching for 21.1.153.50.in-addr.arpa. PTR record at E.ROOT-SERVERS.NET. [192.203.230.10] ...took 1 ms
Searching for 21.1.153.50.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 26 ms
Searching for arin.authdns.ripe.net. A record at A.ROOT-SERVERS.NET. [198.41.0.4] ...took 13 ms
Searching for arin.authdns.ripe.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 25 ms
Searching for arin.authdns.ripe.net. A record at a3.verisigndns.com. [69.36.145.33] ...took 3 ms
Searching for 21.1.153.50.in-addr.arpa. PTR record at arin.authdns.ripe.net. [193.0.9.10] ...took 8 ms
Searching for dns102.comcast.net. A record at J.ROOT-SERVERS.NET. [192.58.128.30] ...took 3 ms
Searching for dns102.comcast.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 85 ms
Searching for dns102.comcast.net. A record at dns105.comcast.net. [68.87.72.244] ...took 102 ms
Searching for 21.1.153.50.in-addr.arpa. PTR record at dns102.comcast.net. [68.87.85.132] ...took 148 ms

Nameserver dns102.comcast.net. reports: No such host 21.1.153.50.in-addr.arpa.



Total elapsed query time: 414 ms
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