231.145.161 is a class C of IPs

Sample IPs from the class C 231.145.161

231.145.161.208	View precise location of 231.145.161.208 on the map!
231.145.161.122	View precise location of 231.145.161.122 on the map!
231.145.161.154	View precise location of 231.145.161.154 on the map!
231.145.161.150	View precise location of 231.145.161.150 on the map!
231.145.161.165	View precise location of 231.145.161.165 on the map!
231.145.161.195	View precise location of 231.145.161.195 on the map!
231.145.161.248	View precise location of 231.145.161.248 on the map!
231.145.161.4	View precise location of 231.145.161.4 on the map!
231.145.161.127	View precise location of 231.145.161.127 on the map!
231.145.161.26	View precise location of 231.145.161.26 on the map!
231.145.161.76	View precise location of 231.145.161.76 on the map!

10 Random IPs

50.235.215.151	Find precise map location of 50.235.215.151
18.36.129.188	Find precise map location of 18.36.129.188
115.200.82.242	Find precise map location of 115.200.82.242
89.38.240.50	Find precise map location of 89.38.240.50
224.244.85.22	Find precise map location of 224.244.85.22
254.97.1.179	Find precise map location of 254.97.1.179
96.81.12.220	Find precise map location of 96.81.12.220
191.64.5.140	Find precise map location of 191.64.5.140
94.217.110.212	Find precise map location of 94.217.110.212
23.188.26.43	Find precise map location of 23.188.26.43
164.77.216.128	Find precise map location of 164.77.216.128

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