154.21.186 is a class C of IPs

Sample IPs from the class C 154.21.186

154.21.186.145	View precise location of 154.21.186.145 on the map!
154.21.186.115	View precise location of 154.21.186.115 on the map!
154.21.186.239	View precise location of 154.21.186.239 on the map!
154.21.186.132	View precise location of 154.21.186.132 on the map!
154.21.186.240	View precise location of 154.21.186.240 on the map!
154.21.186.171	View precise location of 154.21.186.171 on the map!
154.21.186.135	View precise location of 154.21.186.135 on the map!
154.21.186.35	View precise location of 154.21.186.35 on the map!
154.21.186.55	View precise location of 154.21.186.55 on the map!
154.21.186.196	View precise location of 154.21.186.196 on the map!
154.21.186.127	View precise location of 154.21.186.127 on the map!

10 Random IPs

190.60.147.178	Find precise map location of 190.60.147.178
194.60.222.137	Find precise map location of 194.60.222.137
172.224.134.194	Find precise map location of 172.224.134.194
194.91.107.29	Find precise map location of 194.91.107.29
54.212.197.178	Find precise map location of 54.212.197.178
101.159.139.83	Find precise map location of 101.159.139.83
14.204.9.115	Find precise map location of 14.204.9.115
130.95.85.42	Find precise map location of 130.95.85.42
90.132.50.160	Find precise map location of 90.132.50.160
60.47.46.236	Find precise map location of 60.47.46.236
70.140.17.57	Find precise map location of 70.140.17.57

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