123.66.254 is a class C of IPs

Sample IPs from the class C 123.66.254

123.66.254.12	View precise location of 123.66.254.12 on the map!
123.66.254.111	View precise location of 123.66.254.111 on the map!
123.66.254.189	View precise location of 123.66.254.189 on the map!
123.66.254.65	View precise location of 123.66.254.65 on the map!
123.66.254.217	View precise location of 123.66.254.217 on the map!
123.66.254.223	View precise location of 123.66.254.223 on the map!
123.66.254.57	View precise location of 123.66.254.57 on the map!
123.66.254.9	View precise location of 123.66.254.9 on the map!
123.66.254.152	View precise location of 123.66.254.152 on the map!
123.66.254.171	View precise location of 123.66.254.171 on the map!
123.66.254.168	View precise location of 123.66.254.168 on the map!

10 Random IPs

25.99.114.248	Find precise map location of 25.99.114.248
87.98.14.233	Find precise map location of 87.98.14.233
17.116.160.82	Find precise map location of 17.116.160.82
245.11.66.78	Find precise map location of 245.11.66.78
147.178.205.149	Find precise map location of 147.178.205.149
63.138.48.181	Find precise map location of 63.138.48.181
160.103.53.215	Find precise map location of 160.103.53.215
67.117.131.147	Find precise map location of 67.117.131.147
71.132.30.229	Find precise map location of 71.132.30.229
109.94.104.114	Find precise map location of 109.94.104.114
154.109.25.83	Find precise map location of 154.109.25.83

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