163.31.204 is a class C of IPs

Sample IPs from the class C 163.31.204

163.31.204.216	View precise location of 163.31.204.216 on the map!
163.31.204.168	View precise location of 163.31.204.168 on the map!
163.31.204.17	View precise location of 163.31.204.17 on the map!
163.31.204.109	View precise location of 163.31.204.109 on the map!
163.31.204.176	View precise location of 163.31.204.176 on the map!
163.31.204.53	View precise location of 163.31.204.53 on the map!
163.31.204.127	View precise location of 163.31.204.127 on the map!
163.31.204.189	View precise location of 163.31.204.189 on the map!
163.31.204.41	View precise location of 163.31.204.41 on the map!
163.31.204.202	View precise location of 163.31.204.202 on the map!
163.31.204.4	View precise location of 163.31.204.4 on the map!

10 Random IPs

213.104.183.94	Find precise map location of 213.104.183.94
181.71.68.42	Find precise map location of 181.71.68.42
22.80.61.243	Find precise map location of 22.80.61.243
172.247.139.157	Find precise map location of 172.247.139.157
45.241.230.243	Find precise map location of 45.241.230.243
13.90.28.105	Find precise map location of 13.90.28.105
189.187.151.229	Find precise map location of 189.187.151.229
40.252.221.195	Find precise map location of 40.252.221.195
18.191.102.125	Find precise map location of 18.191.102.125
69.239.170.104	Find precise map location of 69.239.170.104
11.80.60.94	Find precise map location of 11.80.60.94

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