170.81.143 is a class C of IPs

Sample IPs from the class C 170.81.143

170.81.143.183	View precise location of 170.81.143.183 on the map!
170.81.143.249	View precise location of 170.81.143.249 on the map!
170.81.143.121	View precise location of 170.81.143.121 on the map!
170.81.143.3	View precise location of 170.81.143.3 on the map!
170.81.143.64	View precise location of 170.81.143.64 on the map!
170.81.143.10	View precise location of 170.81.143.10 on the map!
170.81.143.118	View precise location of 170.81.143.118 on the map!
170.81.143.115	View precise location of 170.81.143.115 on the map!
170.81.143.6	View precise location of 170.81.143.6 on the map!
170.81.143.202	View precise location of 170.81.143.202 on the map!
170.81.143.93	View precise location of 170.81.143.93 on the map!

10 Random IPs

23.226.5.77	Find precise map location of 23.226.5.77
86.155.146.199	Find precise map location of 86.155.146.199
241.11.237.169	Find precise map location of 241.11.237.169
237.217.89.212	Find precise map location of 237.217.89.212
136.35.233.224	Find precise map location of 136.35.233.224
212.196.187.64	Find precise map location of 212.196.187.64
151.40.250.233	Find precise map location of 151.40.250.233
133.246.74.69	Find precise map location of 133.246.74.69
62.39.104.37	Find precise map location of 62.39.104.37
46.102.73.94	Find precise map location of 46.102.73.94
227.114.48.187	Find precise map location of 227.114.48.187

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