66.42.166 is a class C of IPs

Sample IPs from the class C 66.42.166

66.42.166.147	View precise location of 66.42.166.147 on the map!
66.42.166.108	View precise location of 66.42.166.108 on the map!
66.42.166.10	View precise location of 66.42.166.10 on the map!
66.42.166.148	View precise location of 66.42.166.148 on the map!
66.42.166.96	View precise location of 66.42.166.96 on the map!
66.42.166.187	View precise location of 66.42.166.187 on the map!
66.42.166.154	View precise location of 66.42.166.154 on the map!
66.42.166.15	View precise location of 66.42.166.15 on the map!
66.42.166.145	View precise location of 66.42.166.145 on the map!
66.42.166.173	View precise location of 66.42.166.173 on the map!
66.42.166.188	View precise location of 66.42.166.188 on the map!

10 Random IPs

131.223.190.136	Find precise map location of 131.223.190.136
115.143.149.32	Find precise map location of 115.143.149.32
33.253.82.3	Find precise map location of 33.253.82.3
146.233.50.69	Find precise map location of 146.233.50.69
208.20.94.133	Find precise map location of 208.20.94.133
205.37.223.39	Find precise map location of 205.37.223.39
240.228.210.232	Find precise map location of 240.228.210.232
228.58.242.248	Find precise map location of 228.58.242.248
129.36.236.226	Find precise map location of 129.36.236.226
170.220.42.194	Find precise map location of 170.220.42.194
175.152.203.70	Find precise map location of 175.152.203.70

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