163.213.131 is a class C of IPs

Sample IPs from the class C 163.213.131

163.213.131.15	View precise location of 163.213.131.15 on the map!
163.213.131.210	View precise location of 163.213.131.210 on the map!
163.213.131.41	View precise location of 163.213.131.41 on the map!
163.213.131.41	View precise location of 163.213.131.41 on the map!
163.213.131.66	View precise location of 163.213.131.66 on the map!
163.213.131.18	View precise location of 163.213.131.18 on the map!
163.213.131.15	View precise location of 163.213.131.15 on the map!
163.213.131.5	View precise location of 163.213.131.5 on the map!
163.213.131.108	View precise location of 163.213.131.108 on the map!
163.213.131.66	View precise location of 163.213.131.66 on the map!
163.213.131.143	View precise location of 163.213.131.143 on the map!

10 Random IPs

27.91.112.83	Find precise map location of 27.91.112.83
173.126.89.211	Find precise map location of 173.126.89.211
48.156.63.241	Find precise map location of 48.156.63.241
56.34.82.215	Find precise map location of 56.34.82.215
172.227.58.23	Find precise map location of 172.227.58.23
28.193.169.192	Find precise map location of 28.193.169.192
153.88.49.139	Find precise map location of 153.88.49.139
156.196.49.75	Find precise map location of 156.196.49.75
247.24.119.200	Find precise map location of 247.24.119.200
89.160.92.51	Find precise map location of 89.160.92.51
51.194.13.113	Find precise map location of 51.194.13.113

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