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Hostname or IP Type  
Searching for 237.172.158.81.in-addr.arpa. PTR record at C.ROOT-SERVERS.NET. [192.33.4.12] ...took 3 ms
Searching for 237.172.158.81.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 14 ms
Searching for sns-pb.isc.org. A record at C.ROOT-SERVERS.NET. [192.33.4.12] ...took 3 ms
Searching for sns-pb.isc.org. A record at a2.org.afilias-nst.info. [199.249.112.1] ...took 1 ms
Searching for ns.isc.afilias-nst.info. A record at D.ROOT-SERVERS.NET. [199.7.91.13] ...took 1 ms
Searching for ns.isc.afilias-nst.info. A record at b2.info.afilias-nst.org. [199.249.121.1] ...took 90 ms
Searching for ns.isc.afilias-nst.info. A record at ns1.ams1.afilias-nst.info. [65.22.6.79] ...took 262 ms
Searching for sns-pb.isc.org. A record at ns.isc.afilias-nst.info. [199.254.63.254] ...took 8 ms
Searching for 237.172.158.81.in-addr.arpa. PTR record at sns-pb.isc.org. [192.5.4.1] ...took 14 ms
Searching for ns2.bt.net. A record at D.ROOT-SERVERS.NET. [199.7.91.13] ...took 2 ms
Searching for ns2.bt.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 25 ms
Searching for ns2.bt.net. A record at ns1.bt.net. [217.32.105.91] ...took 21 ms
Searching for 237.172.158.81.in-addr.arpa. PTR record at ns2.bt.net. [217.32.105.90] ...took 21 ms
Searching for 237.172.158.81.in-addr.arpa. PTR record at ns21.bt.net. [217.35.209.187] ...took 29 ms
DomainTypeTTLAnswer
237.172.158.81.in-addr.arpa.PTR604800host81-158-172-237.range81-158.btcentralplus.com.



Total elapsed query time: 494 ms