166.19.186 is a class C of IPs

Sample IPs from the class C 166.19.186

166.19.186.51	View precise location of 166.19.186.51 on the map!
166.19.186.148	View precise location of 166.19.186.148 on the map!
166.19.186.141	View precise location of 166.19.186.141 on the map!
166.19.186.95	View precise location of 166.19.186.95 on the map!
166.19.186.198	View precise location of 166.19.186.198 on the map!
166.19.186.31	View precise location of 166.19.186.31 on the map!
166.19.186.143	View precise location of 166.19.186.143 on the map!
166.19.186.69	View precise location of 166.19.186.69 on the map!
166.19.186.13	View precise location of 166.19.186.13 on the map!
166.19.186.171	View precise location of 166.19.186.171 on the map!
166.19.186.238	View precise location of 166.19.186.238 on the map!

10 Random IPs

91.51.48.127	Find precise map location of 91.51.48.127
29.153.145.191	Find precise map location of 29.153.145.191
157.41.10.75	Find precise map location of 157.41.10.75
24.52.185.35	Find precise map location of 24.52.185.35
80.141.50.72	Find precise map location of 80.141.50.72
250.49.12.188	Find precise map location of 250.49.12.188
79.73.181.19	Find precise map location of 79.73.181.19
78.3.28.253	Find precise map location of 78.3.28.253
35.34.187.236	Find precise map location of 35.34.187.236
225.16.99.116	Find precise map location of 225.16.99.116
154.123.180.141	Find precise map location of 154.123.180.141

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