66.191.78 is a class C of IPs

Sample IPs from the class C 66.191.78

66.191.78.181	View precise location of 66.191.78.181 on the map!
66.191.78.248	View precise location of 66.191.78.248 on the map!
66.191.78.60	View precise location of 66.191.78.60 on the map!
66.191.78.243	View precise location of 66.191.78.243 on the map!
66.191.78.186	View precise location of 66.191.78.186 on the map!
66.191.78.214	View precise location of 66.191.78.214 on the map!
66.191.78.106	View precise location of 66.191.78.106 on the map!
66.191.78.53	View precise location of 66.191.78.53 on the map!
66.191.78.192	View precise location of 66.191.78.192 on the map!
66.191.78.209	View precise location of 66.191.78.209 on the map!
66.191.78.213	View precise location of 66.191.78.213 on the map!

10 Random IPs

51.223.78.53	Find precise map location of 51.223.78.53
27.48.227.47	Find precise map location of 27.48.227.47
235.24.98.146	Find precise map location of 235.24.98.146
37.241.135.115	Find precise map location of 37.241.135.115
145.8.254.254	Find precise map location of 145.8.254.254
185.31.196.140	Find precise map location of 185.31.196.140
146.117.16.215	Find precise map location of 146.117.16.215
104.144.254.248	Find precise map location of 104.144.254.248
127.77.20.39	Find precise map location of 127.77.20.39
10.235.44.155	Find precise map location of 10.235.44.155
206.135.38.153	Find precise map location of 206.135.38.153

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