43.51.81 is a class C of IPs

Sample IPs from the class C 43.51.81

43.51.81.239	View precise location of 43.51.81.239 on the map!
43.51.81.125	View precise location of 43.51.81.125 on the map!
43.51.81.42	View precise location of 43.51.81.42 on the map!
43.51.81.135	View precise location of 43.51.81.135 on the map!
43.51.81.40	View precise location of 43.51.81.40 on the map!
43.51.81.174	View precise location of 43.51.81.174 on the map!
43.51.81.33	View precise location of 43.51.81.33 on the map!
43.51.81.174	View precise location of 43.51.81.174 on the map!
43.51.81.49	View precise location of 43.51.81.49 on the map!
43.51.81.165	View precise location of 43.51.81.165 on the map!
43.51.81.142	View precise location of 43.51.81.142 on the map!

10 Random IPs

52.51.56.186	Find precise map location of 52.51.56.186
99.238.15.122	Find precise map location of 99.238.15.122
115.143.123.162	Find precise map location of 115.143.123.162
228.255.87.119	Find precise map location of 228.255.87.119
254.50.6.182	Find precise map location of 254.50.6.182
28.254.11.210	Find precise map location of 28.254.11.210
126.137.147.222	Find precise map location of 126.137.147.222
225.193.202.76	Find precise map location of 225.193.202.76
26.211.90.160	Find precise map location of 26.211.90.160
152.235.182.62	Find precise map location of 152.235.182.62
50.32.216.178	Find precise map location of 50.32.216.178

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