231.204 is a class B of IPs

Sample IPs from the class B 231.204

231.204.185.42	View precise location of 231.204.185.42 on the map!
231.204.217.158	View precise location of 231.204.217.158 on the map!
231.204.152.67	View precise location of 231.204.152.67 on the map!
231.204.165.211	View precise location of 231.204.165.211 on the map!
231.204.31.173	View precise location of 231.204.31.173 on the map!
231.204.115.161	View precise location of 231.204.115.161 on the map!
231.204.18.3	View precise location of 231.204.18.3 on the map!
231.204.145.57	View precise location of 231.204.145.57 on the map!
231.204.182.183	View precise location of 231.204.182.183 on the map!
231.204.247.255	View precise location of 231.204.247.255 on the map!
231.204.97.79	View precise location of 231.204.97.79 on the map!

10 Random IPs

140.134.147.40	Find precise map location of 140.134.147.40
16.100.129.230	Find precise map location of 16.100.129.230
230.2.190.207	Find precise map location of 230.2.190.207
46.76.73.96	Find precise map location of 46.76.73.96
78.42.164.206	Find precise map location of 78.42.164.206
45.151.176.65	Find precise map location of 45.151.176.65
139.20.61.165	Find precise map location of 139.20.61.165
209.20.142.127	Find precise map location of 209.20.142.127
201.38.171.193	Find precise map location of 201.38.171.193
244.197.46.191	Find precise map location of 244.197.46.191
78.126.55.204	Find precise map location of 78.126.55.204

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