166.172.15 is a class C of IPs

Sample IPs from the class C 166.172.15

166.172.15.183	View precise location of 166.172.15.183 on the map!
166.172.15.195	View precise location of 166.172.15.195 on the map!
166.172.15.224	View precise location of 166.172.15.224 on the map!
166.172.15.201	View precise location of 166.172.15.201 on the map!
166.172.15.171	View precise location of 166.172.15.171 on the map!
166.172.15.48	View precise location of 166.172.15.48 on the map!
166.172.15.62	View precise location of 166.172.15.62 on the map!
166.172.15.193	View precise location of 166.172.15.193 on the map!
166.172.15.117	View precise location of 166.172.15.117 on the map!
166.172.15.27	View precise location of 166.172.15.27 on the map!
166.172.15.78	View precise location of 166.172.15.78 on the map!

10 Random IPs

250.68.19.88	Find precise map location of 250.68.19.88
233.68.54.145	Find precise map location of 233.68.54.145
85.151.82.117	Find precise map location of 85.151.82.117
213.234.84.242	Find precise map location of 213.234.84.242
141.13.43.129	Find precise map location of 141.13.43.129
10.142.23.81	Find precise map location of 10.142.23.81
131.204.135.218	Find precise map location of 131.204.135.218
24.172.95.78	Find precise map location of 24.172.95.78
137.29.150.121	Find precise map location of 137.29.150.121
64.20.75.37	Find precise map location of 64.20.75.37
243.240.180.150	Find precise map location of 243.240.180.150

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