66.15.30 is a class C of IPs

Sample IPs from the class C 66.15.30

66.15.30.254	View precise location of 66.15.30.254 on the map!
66.15.30.206	View precise location of 66.15.30.206 on the map!
66.15.30.227	View precise location of 66.15.30.227 on the map!
66.15.30.87	View precise location of 66.15.30.87 on the map!
66.15.30.63	View precise location of 66.15.30.63 on the map!
66.15.30.20	View precise location of 66.15.30.20 on the map!
66.15.30.75	View precise location of 66.15.30.75 on the map!
66.15.30.159	View precise location of 66.15.30.159 on the map!
66.15.30.146	View precise location of 66.15.30.146 on the map!
66.15.30.221	View precise location of 66.15.30.221 on the map!
66.15.30.21	View precise location of 66.15.30.21 on the map!

10 Random IPs

136.201.206.134	Find precise map location of 136.201.206.134
65.238.238.86	Find precise map location of 65.238.238.86
62.207.79.179	Find precise map location of 62.207.79.179
25.5.186.171	Find precise map location of 25.5.186.171
175.25.44.215	Find precise map location of 175.25.44.215
193.47.78.232	Find precise map location of 193.47.78.232
80.123.224.220	Find precise map location of 80.123.224.220
117.152.99.249	Find precise map location of 117.152.99.249
148.39.84.150	Find precise map location of 148.39.84.150
64.218.70.253	Find precise map location of 64.218.70.253
178.203.80.76	Find precise map location of 178.203.80.76

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