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Hostname or IP Type  
Searching for 237.172.158.81.in-addr.arpa. PTR record at H.ROOT-SERVERS.NET. [128.63.2.53] ...took 92 ms
Searching for 237.172.158.81.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 201 ms
Searching for sec3.apnic.net. A record at H.ROOT-SERVERS.NET. [128.63.2.53] ...took 92 ms
Searching for sec3.apnic.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 9 ms
Searching for sec3.apnic.net. A record at tinnie.apnic.net. [202.12.29.60] ...took 316 ms
Searching for 237.172.158.81.in-addr.arpa. PTR record at sec3.apnic.net. [202.12.28.140] ...took 262 ms
Searching for ns1.bt.net. A record at H.ROOT-SERVERS.NET. [128.63.2.53] ...took 92 ms
Searching for ns1.bt.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 125 ms
Searching for ns1.bt.net. A record at ns1.bt.net. [217.32.105.91] ...took 40 ms
Searching for 237.172.158.81.in-addr.arpa. PTR record at ns1.bt.net. [217.32.105.91] ...took 24 ms
Searching for 237.172.158.81.in-addr.arpa. PTR record at ns21.bt.net. [217.35.209.187] ...took 27 ms
DomainTypeTTLAnswer
237.172.158.81.in-addr.arpa.PTR604800host81-158-172-237.range81-158.btcentralplus.com.



Total elapsed query time: 1,280 ms