66.145 is a class B of IPs

Sample IPs from the class B 66.145

66.145.155.249	View precise location of 66.145.155.249 on the map!
66.145.246.242	View precise location of 66.145.246.242 on the map!
66.145.113.44	View precise location of 66.145.113.44 on the map!
66.145.188.222	View precise location of 66.145.188.222 on the map!
66.145.233.193	View precise location of 66.145.233.193 on the map!
66.145.206.165	View precise location of 66.145.206.165 on the map!
66.145.130.177	View precise location of 66.145.130.177 on the map!
66.145.26.82	View precise location of 66.145.26.82 on the map!
66.145.17.3	View precise location of 66.145.17.3 on the map!
66.145.126.181	View precise location of 66.145.126.181 on the map!
66.145.248.4	View precise location of 66.145.248.4 on the map!

10 Random IPs

249.102.124.180	Find precise map location of 249.102.124.180
119.110.92.52	Find precise map location of 119.110.92.52
191.33.92.55	Find precise map location of 191.33.92.55
170.22.124.168	Find precise map location of 170.22.124.168
222.167.197.167	Find precise map location of 222.167.197.167
45.100.221.57	Find precise map location of 45.100.221.57
121.53.35.120	Find precise map location of 121.53.35.120
94.241.19.57	Find precise map location of 94.241.19.57
52.69.167.251	Find precise map location of 52.69.167.251
242.210.131.121	Find precise map location of 242.210.131.121
181.234.185.164	Find precise map location of 181.234.185.164

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