231.139.168 is a class C of IPs

Sample IPs from the class C 231.139.168

231.139.168.179	View precise location of 231.139.168.179 on the map!
231.139.168.65	View precise location of 231.139.168.65 on the map!
231.139.168.199	View precise location of 231.139.168.199 on the map!
231.139.168.169	View precise location of 231.139.168.169 on the map!
231.139.168.130	View precise location of 231.139.168.130 on the map!
231.139.168.91	View precise location of 231.139.168.91 on the map!
231.139.168.30	View precise location of 231.139.168.30 on the map!
231.139.168.72	View precise location of 231.139.168.72 on the map!
231.139.168.228	View precise location of 231.139.168.228 on the map!
231.139.168.67	View precise location of 231.139.168.67 on the map!
231.139.168.135	View precise location of 231.139.168.135 on the map!

10 Random IPs

45.155.15.196	Find precise map location of 45.155.15.196
14.37.15.193	Find precise map location of 14.37.15.193
186.234.64.78	Find precise map location of 186.234.64.78
108.105.244.222	Find precise map location of 108.105.244.222
115.89.203.112	Find precise map location of 115.89.203.112
207.29.145.34	Find precise map location of 207.29.145.34
159.125.233.170	Find precise map location of 159.125.233.170
90.104.135.98	Find precise map location of 90.104.135.98
125.255.45.64	Find precise map location of 125.255.45.64
200.107.54.198	Find precise map location of 200.107.54.198
39.150.221.187	Find precise map location of 39.150.221.187

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