56.66.164 is a class C of IPs

Sample IPs from the class C 56.66.164

56.66.164.118	View precise location of 56.66.164.118 on the map!
56.66.164.75	View precise location of 56.66.164.75 on the map!
56.66.164.20	View precise location of 56.66.164.20 on the map!
56.66.164.244	View precise location of 56.66.164.244 on the map!
56.66.164.48	View precise location of 56.66.164.48 on the map!
56.66.164.164	View precise location of 56.66.164.164 on the map!
56.66.164.136	View precise location of 56.66.164.136 on the map!
56.66.164.114	View precise location of 56.66.164.114 on the map!
56.66.164.61	View precise location of 56.66.164.61 on the map!
56.66.164.96	View precise location of 56.66.164.96 on the map!
56.66.164.78	View precise location of 56.66.164.78 on the map!

10 Random IPs

19.187.197.237	Find precise map location of 19.187.197.237
150.109.212.250	Find precise map location of 150.109.212.250
247.138.44.237	Find precise map location of 247.138.44.237
182.254.6.17	Find precise map location of 182.254.6.17
93.7.152.234	Find precise map location of 93.7.152.234
23.54.16.137	Find precise map location of 23.54.16.137
216.18.6.205	Find precise map location of 216.18.6.205
203.237.201.28	Find precise map location of 203.237.201.28
64.59.52.238	Find precise map location of 64.59.52.238
154.188.54.118	Find precise map location of 154.188.54.118
91.99.19.217	Find precise map location of 91.99.19.217

TestURI.org is a free web-sniffer.net alternative. It alows you to send custom HTTP request and check the HTTP response.