231.17.145 is a class C of IPs

Sample IPs from the class C 231.17.145

231.17.145.37	View precise location of 231.17.145.37 on the map!
231.17.145.232	View precise location of 231.17.145.232 on the map!
231.17.145.8	View precise location of 231.17.145.8 on the map!
231.17.145.149	View precise location of 231.17.145.149 on the map!
231.17.145.130	View precise location of 231.17.145.130 on the map!
231.17.145.205	View precise location of 231.17.145.205 on the map!
231.17.145.153	View precise location of 231.17.145.153 on the map!
231.17.145.230	View precise location of 231.17.145.230 on the map!
231.17.145.74	View precise location of 231.17.145.74 on the map!
231.17.145.196	View precise location of 231.17.145.196 on the map!
231.17.145.193	View precise location of 231.17.145.193 on the map!

10 Random IPs

246.156.60.129	Find precise map location of 246.156.60.129
227.73.69.38	Find precise map location of 227.73.69.38
5.4.64.202	Find precise map location of 5.4.64.202
235.91.162.165	Find precise map location of 235.91.162.165
115.149.78.64	Find precise map location of 115.149.78.64
21.111.13.34	Find precise map location of 21.111.13.34
51.141.169.137	Find precise map location of 51.141.169.137
198.155.154.247	Find precise map location of 198.155.154.247
7.232.99.255	Find precise map location of 7.232.99.255
255.126.235.160	Find precise map location of 255.126.235.160
113.230.146.222	Find precise map location of 113.230.146.222

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