203.190.66 is a class C of IPs

Sample IPs from the class C 203.190.66

203.190.66.50	View precise location of 203.190.66.50 on the map!
203.190.66.214	View precise location of 203.190.66.214 on the map!
203.190.66.184	View precise location of 203.190.66.184 on the map!
203.190.66.26	View precise location of 203.190.66.26 on the map!
203.190.66.126	View precise location of 203.190.66.126 on the map!
203.190.66.69	View precise location of 203.190.66.69 on the map!
203.190.66.138	View precise location of 203.190.66.138 on the map!
203.190.66.50	View precise location of 203.190.66.50 on the map!
203.190.66.249	View precise location of 203.190.66.249 on the map!
203.190.66.114	View precise location of 203.190.66.114 on the map!
203.190.66.7	View precise location of 203.190.66.7 on the map!

10 Random IPs

34.40.67.17	Find precise map location of 34.40.67.17
25.65.248.151	Find precise map location of 25.65.248.151
55.89.142.231	Find precise map location of 55.89.142.231
58.167.146.229	Find precise map location of 58.167.146.229
72.190.248.207	Find precise map location of 72.190.248.207
144.35.155.194	Find precise map location of 144.35.155.194
218.237.145.100	Find precise map location of 218.237.145.100
64.89.72.163	Find precise map location of 64.89.72.163
163.128.49.63	Find precise map location of 163.128.49.63
55.223.9.70	Find precise map location of 55.223.9.70
127.228.17.195	Find precise map location of 127.228.17.195

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