163.206.4 is a class C of IPs

Sample IPs from the class C 163.206.4

163.206.4.145	View precise location of 163.206.4.145 on the map!
163.206.4.68	View precise location of 163.206.4.68 on the map!
163.206.4.105	View precise location of 163.206.4.105 on the map!
163.206.4.35	View precise location of 163.206.4.35 on the map!
163.206.4.133	View precise location of 163.206.4.133 on the map!
163.206.4.28	View precise location of 163.206.4.28 on the map!
163.206.4.171	View precise location of 163.206.4.171 on the map!
163.206.4.22	View precise location of 163.206.4.22 on the map!
163.206.4.170	View precise location of 163.206.4.170 on the map!
163.206.4.67	View precise location of 163.206.4.67 on the map!
163.206.4.127	View precise location of 163.206.4.127 on the map!

10 Random IPs

174.217.85.118	Find precise map location of 174.217.85.118
172.8.99.223	Find precise map location of 172.8.99.223
76.178.142.88	Find precise map location of 76.178.142.88
176.139.47.248	Find precise map location of 176.139.47.248
176.111.45.201	Find precise map location of 176.111.45.201
39.76.242.28	Find precise map location of 39.76.242.28
235.137.3.123	Find precise map location of 235.137.3.123
8.227.199.156	Find precise map location of 8.227.199.156
170.40.206.111	Find precise map location of 170.40.206.111
68.132.66.35	Find precise map location of 68.132.66.35
160.177.212.202	Find precise map location of 160.177.212.202

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