Something

gxti@eureka ~/src/frank $ host whois.interlakenames.com
whois.interlakenames.com has address 67.15.47.4
gxti@eureka ~/src/frank $ host 67.15.47.4
4.47.15.67.in-addr.arpa is an alias for 4.47.15.67.in-addr.ev1.opticaljungle.com.
4.47.15.67.in-addr.ev1.opticaljungle.com domain name pointer 67-15-47-4.opticaljungle.com.
gxti@eureka ~/src/frank $ whois 67.15.47.4
[Querying whois.arin.net]
[whois.arin.net]
Everyones Internet EVRY-BLK-15 (NET-67-15-0-0-1) 
                                  67.15.0.0 - 67.15.255.255
Optical Jungle EVRY-159 (NET-67-15-47-0-1) 
                                  67.15.47.0 - 67.15.47.255