131.138.171 is a class C of IPs

Sample IPs from the class C 131.138.171

131.138.171.145	View precise location of 131.138.171.145 on the map!
131.138.171.39	View precise location of 131.138.171.39 on the map!
131.138.171.233	View precise location of 131.138.171.233 on the map!
131.138.171.103	View precise location of 131.138.171.103 on the map!
131.138.171.48	View precise location of 131.138.171.48 on the map!
131.138.171.119	View precise location of 131.138.171.119 on the map!
131.138.171.8	View precise location of 131.138.171.8 on the map!
131.138.171.97	View precise location of 131.138.171.97 on the map!
131.138.171.198	View precise location of 131.138.171.198 on the map!
131.138.171.208	View precise location of 131.138.171.208 on the map!
131.138.171.113	View precise location of 131.138.171.113 on the map!

10 Random IPs

154.48.109.211	Find precise map location of 154.48.109.211
191.52.250.171	Find precise map location of 191.52.250.171
63.197.150.131	Find precise map location of 63.197.150.131
27.94.171.43	Find precise map location of 27.94.171.43
122.249.101.52	Find precise map location of 122.249.101.52
203.220.244.31	Find precise map location of 203.220.244.31
79.165.111.89	Find precise map location of 79.165.111.89
84.84.196.239	Find precise map location of 84.84.196.239
142.180.191.22	Find precise map location of 142.180.191.22
153.174.184.27	Find precise map location of 153.174.184.27
203.157.155.216	Find precise map location of 203.157.155.216

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