39.66.3 is a class C of IPs

Sample IPs from the class C 39.66.3

39.66.3.3	View precise location of 39.66.3.3 on the map!
39.66.3.25	View precise location of 39.66.3.25 on the map!
39.66.3.172	View precise location of 39.66.3.172 on the map!
39.66.3.133	View precise location of 39.66.3.133 on the map!
39.66.3.5	View precise location of 39.66.3.5 on the map!
39.66.3.69	View precise location of 39.66.3.69 on the map!
39.66.3.242	View precise location of 39.66.3.242 on the map!
39.66.3.94	View precise location of 39.66.3.94 on the map!
39.66.3.25	View precise location of 39.66.3.25 on the map!
39.66.3.240	View precise location of 39.66.3.240 on the map!
39.66.3.169	View precise location of 39.66.3.169 on the map!

10 Random IPs

207.214.153.76	Find precise map location of 207.214.153.76
144.44.49.24	Find precise map location of 144.44.49.24
159.46.216.80	Find precise map location of 159.46.216.80
158.10.10.222	Find precise map location of 158.10.10.222
232.12.125.158	Find precise map location of 232.12.125.158
171.68.29.95	Find precise map location of 171.68.29.95
86.43.127.25	Find precise map location of 86.43.127.25
75.146.245.232	Find precise map location of 75.146.245.232
228.44.211.253	Find precise map location of 228.44.211.253
3.231.253.143	Find precise map location of 3.231.253.143
180.140.40.38	Find precise map location of 180.140.40.38

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