66.4.173 is a class C of IPs

Sample IPs from the class C 66.4.173

66.4.173.233	View precise location of 66.4.173.233 on the map!
66.4.173.184	View precise location of 66.4.173.184 on the map!
66.4.173.11	View precise location of 66.4.173.11 on the map!
66.4.173.165	View precise location of 66.4.173.165 on the map!
66.4.173.231	View precise location of 66.4.173.231 on the map!
66.4.173.208	View precise location of 66.4.173.208 on the map!
66.4.173.218	View precise location of 66.4.173.218 on the map!
66.4.173.193	View precise location of 66.4.173.193 on the map!
66.4.173.124	View precise location of 66.4.173.124 on the map!
66.4.173.201	View precise location of 66.4.173.201 on the map!
66.4.173.37	View precise location of 66.4.173.37 on the map!

10 Random IPs

216.87.220.157	Find precise map location of 216.87.220.157
222.184.29.108	Find precise map location of 222.184.29.108
17.176.192.187	Find precise map location of 17.176.192.187
56.198.131.223	Find precise map location of 56.198.131.223
224.24.241.144	Find precise map location of 224.24.241.144
196.12.9.4	Find precise map location of 196.12.9.4
188.70.216.190	Find precise map location of 188.70.216.190
53.95.222.221	Find precise map location of 53.95.222.221
25.76.176.150	Find precise map location of 25.76.176.150
141.67.93.97	Find precise map location of 141.67.93.97
198.64.216.111	Find precise map location of 198.64.216.111

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