231.15.140 is a class C of IPs

Sample IPs from the class C 231.15.140

231.15.140.172	View precise location of 231.15.140.172 on the map!
231.15.140.208	View precise location of 231.15.140.208 on the map!
231.15.140.25	View precise location of 231.15.140.25 on the map!
231.15.140.26	View precise location of 231.15.140.26 on the map!
231.15.140.25	View precise location of 231.15.140.25 on the map!
231.15.140.139	View precise location of 231.15.140.139 on the map!
231.15.140.63	View precise location of 231.15.140.63 on the map!
231.15.140.35	View precise location of 231.15.140.35 on the map!
231.15.140.72	View precise location of 231.15.140.72 on the map!
231.15.140.127	View precise location of 231.15.140.127 on the map!
231.15.140.37	View precise location of 231.15.140.37 on the map!

10 Random IPs

48.182.148.125	Find precise map location of 48.182.148.125
205.87.153.5	Find precise map location of 205.87.153.5
176.246.173.145	Find precise map location of 176.246.173.145
210.85.189.77	Find precise map location of 210.85.189.77
28.103.139.50	Find precise map location of 28.103.139.50
92.112.156.133	Find precise map location of 92.112.156.133
95.74.117.171	Find precise map location of 95.74.117.171
170.141.212.107	Find precise map location of 170.141.212.107
151.217.31.30	Find precise map location of 151.217.31.30
186.238.208.111	Find precise map location of 186.238.208.111
89.143.194.12	Find precise map location of 89.143.194.12

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