183.66.217 is a class C of IPs

Sample IPs from the class C 183.66.217

183.66.217.188	View precise location of 183.66.217.188 on the map!
183.66.217.178	View precise location of 183.66.217.178 on the map!
183.66.217.238	View precise location of 183.66.217.238 on the map!
183.66.217.131	View precise location of 183.66.217.131 on the map!
183.66.217.139	View precise location of 183.66.217.139 on the map!
183.66.217.240	View precise location of 183.66.217.240 on the map!
183.66.217.1	View precise location of 183.66.217.1 on the map!
183.66.217.64	View precise location of 183.66.217.64 on the map!
183.66.217.84	View precise location of 183.66.217.84 on the map!
183.66.217.73	View precise location of 183.66.217.73 on the map!
183.66.217.156	View precise location of 183.66.217.156 on the map!

10 Random IPs

121.250.75.37	Find precise map location of 121.250.75.37
23.174.150.219	Find precise map location of 23.174.150.219
215.222.210.222	Find precise map location of 215.222.210.222
31.135.59.16	Find precise map location of 31.135.59.16
127.175.56.35	Find precise map location of 127.175.56.35
51.46.61.179	Find precise map location of 51.46.61.179
169.80.74.19	Find precise map location of 169.80.74.19
235.56.234.247	Find precise map location of 235.56.234.247
134.192.199.40	Find precise map location of 134.192.199.40
206.129.40.125	Find precise map location of 206.129.40.125
141.46.21.73	Find precise map location of 141.46.21.73

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