181.166.216 is a class C of IPs

Sample IPs from the class C 181.166.216

181.166.216.172	View precise location of 181.166.216.172 on the map!
181.166.216.2	View precise location of 181.166.216.2 on the map!
181.166.216.56	View precise location of 181.166.216.56 on the map!
181.166.216.46	View precise location of 181.166.216.46 on the map!
181.166.216.189	View precise location of 181.166.216.189 on the map!
181.166.216.48	View precise location of 181.166.216.48 on the map!
181.166.216.60	View precise location of 181.166.216.60 on the map!
181.166.216.4	View precise location of 181.166.216.4 on the map!
181.166.216.172	View precise location of 181.166.216.172 on the map!
181.166.216.59	View precise location of 181.166.216.59 on the map!
181.166.216.48	View precise location of 181.166.216.48 on the map!

10 Random IPs

93.77.52.16	Find precise map location of 93.77.52.16
100.131.116.93	Find precise map location of 100.131.116.93
10.18.255.147	Find precise map location of 10.18.255.147
87.38.81.101	Find precise map location of 87.38.81.101
190.18.61.62	Find precise map location of 190.18.61.62
12.79.21.229	Find precise map location of 12.79.21.229
95.155.96.34	Find precise map location of 95.155.96.34
144.89.145.188	Find precise map location of 144.89.145.188
1.101.78.115	Find precise map location of 1.101.78.115
74.37.145.118	Find precise map location of 74.37.145.118
254.96.254.227	Find precise map location of 254.96.254.227

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