143.233.31 is a class C of IPs

Sample IPs from the class C 143.233.31

143.233.31.56	View precise location of 143.233.31.56 on the map!
143.233.31.137	View precise location of 143.233.31.137 on the map!
143.233.31.244	View precise location of 143.233.31.244 on the map!
143.233.31.41	View precise location of 143.233.31.41 on the map!
143.233.31.146	View precise location of 143.233.31.146 on the map!
143.233.31.245	View precise location of 143.233.31.245 on the map!
143.233.31.2	View precise location of 143.233.31.2 on the map!
143.233.31.5	View precise location of 143.233.31.5 on the map!
143.233.31.230	View precise location of 143.233.31.230 on the map!
143.233.31.119	View precise location of 143.233.31.119 on the map!
143.233.31.56	View precise location of 143.233.31.56 on the map!

10 Random IPs

102.46.80.151	Find precise map location of 102.46.80.151
244.82.245.154	Find precise map location of 244.82.245.154
57.144.175.217	Find precise map location of 57.144.175.217
82.188.26.26	Find precise map location of 82.188.26.26
209.125.32.108	Find precise map location of 209.125.32.108
84.200.215.224	Find precise map location of 84.200.215.224
153.56.60.33	Find precise map location of 153.56.60.33
126.166.220.5	Find precise map location of 126.166.220.5
152.237.215.191	Find precise map location of 152.237.215.191
123.138.46.13	Find precise map location of 123.138.46.13
96.11.34.190	Find precise map location of 96.11.34.190

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