143.1.131 is a class C of IPs

Sample IPs from the class C 143.1.131

143.1.131.172	View precise location of 143.1.131.172 on the map!
143.1.131.24	View precise location of 143.1.131.24 on the map!
143.1.131.1	View precise location of 143.1.131.1 on the map!
143.1.131.73	View precise location of 143.1.131.73 on the map!
143.1.131.11	View precise location of 143.1.131.11 on the map!
143.1.131.110	View precise location of 143.1.131.110 on the map!
143.1.131.96	View precise location of 143.1.131.96 on the map!
143.1.131.116	View precise location of 143.1.131.116 on the map!
143.1.131.142	View precise location of 143.1.131.142 on the map!
143.1.131.82	View precise location of 143.1.131.82 on the map!
143.1.131.5	View precise location of 143.1.131.5 on the map!

10 Random IPs

70.173.93.232	Find precise map location of 70.173.93.232
34.165.253.129	Find precise map location of 34.165.253.129
31.78.122.209	Find precise map location of 31.78.122.209
131.7.238.87	Find precise map location of 131.7.238.87
201.98.65.156	Find precise map location of 201.98.65.156
38.156.136.243	Find precise map location of 38.156.136.243
40.241.106.16	Find precise map location of 40.241.106.16
167.247.252.91	Find precise map location of 167.247.252.91
253.251.81.108	Find precise map location of 253.251.81.108
67.103.63.137	Find precise map location of 67.103.63.137
61.153.172.33	Find precise map location of 61.153.172.33

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