231.18.75 is a class C of IPs

Sample IPs from the class C 231.18.75

231.18.75.243	View precise location of 231.18.75.243 on the map!
231.18.75.154	View precise location of 231.18.75.154 on the map!
231.18.75.248	View precise location of 231.18.75.248 on the map!
231.18.75.92	View precise location of 231.18.75.92 on the map!
231.18.75.114	View precise location of 231.18.75.114 on the map!
231.18.75.76	View precise location of 231.18.75.76 on the map!
231.18.75.149	View precise location of 231.18.75.149 on the map!
231.18.75.74	View precise location of 231.18.75.74 on the map!
231.18.75.38	View precise location of 231.18.75.38 on the map!
231.18.75.144	View precise location of 231.18.75.144 on the map!
231.18.75.196	View precise location of 231.18.75.196 on the map!

10 Random IPs

233.114.148.129	Find precise map location of 233.114.148.129
175.182.153.105	Find precise map location of 175.182.153.105
54.58.188.128	Find precise map location of 54.58.188.128
154.97.69.152	Find precise map location of 154.97.69.152
9.124.140.87	Find precise map location of 9.124.140.87
226.89.107.35	Find precise map location of 226.89.107.35
52.188.128.90	Find precise map location of 52.188.128.90
191.185.119.130	Find precise map location of 191.185.119.130
82.230.35.255	Find precise map location of 82.230.35.255
124.221.90.31	Find precise map location of 124.221.90.31
31.126.138.239	Find precise map location of 31.126.138.239

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