66.91.216 is a class C of IPs

Sample IPs from the class C 66.91.216

66.91.216.222	View precise location of 66.91.216.222 on the map!
66.91.216.42	View precise location of 66.91.216.42 on the map!
66.91.216.48	View precise location of 66.91.216.48 on the map!
66.91.216.109	View precise location of 66.91.216.109 on the map!
66.91.216.114	View precise location of 66.91.216.114 on the map!
66.91.216.168	View precise location of 66.91.216.168 on the map!
66.91.216.117	View precise location of 66.91.216.117 on the map!
66.91.216.44	View precise location of 66.91.216.44 on the map!
66.91.216.196	View precise location of 66.91.216.196 on the map!
66.91.216.206	View precise location of 66.91.216.206 on the map!
66.91.216.117	View precise location of 66.91.216.117 on the map!

10 Random IPs

89.94.9.218	Find precise map location of 89.94.9.218
71.211.60.146	Find precise map location of 71.211.60.146
134.69.93.6	Find precise map location of 134.69.93.6
83.220.147.29	Find precise map location of 83.220.147.29
221.222.115.83	Find precise map location of 221.222.115.83
115.149.109.129	Find precise map location of 115.149.109.129
12.148.170.181	Find precise map location of 12.148.170.181
185.6.93.91	Find precise map location of 185.6.93.91
229.68.58.115	Find precise map location of 229.68.58.115
246.204.9.47	Find precise map location of 246.204.9.47
80.206.131.131	Find precise map location of 80.206.131.131

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