163.221.237 is a class C of IPs

Sample IPs from the class C 163.221.237

163.221.237.135	View precise location of 163.221.237.135 on the map!
163.221.237.207	View precise location of 163.221.237.207 on the map!
163.221.237.45	View precise location of 163.221.237.45 on the map!
163.221.237.41	View precise location of 163.221.237.41 on the map!
163.221.237.158	View precise location of 163.221.237.158 on the map!
163.221.237.13	View precise location of 163.221.237.13 on the map!
163.221.237.23	View precise location of 163.221.237.23 on the map!
163.221.237.74	View precise location of 163.221.237.74 on the map!
163.221.237.137	View precise location of 163.221.237.137 on the map!
163.221.237.56	View precise location of 163.221.237.56 on the map!
163.221.237.7	View precise location of 163.221.237.7 on the map!

10 Random IPs

99.148.11.168	Find precise map location of 99.148.11.168
101.127.195.38	Find precise map location of 101.127.195.38
142.162.43.144	Find precise map location of 142.162.43.144
2.94.237.134	Find precise map location of 2.94.237.134
145.33.163.161	Find precise map location of 145.33.163.161
179.9.96.85	Find precise map location of 179.9.96.85
255.194.2.238	Find precise map location of 255.194.2.238
40.183.92.209	Find precise map location of 40.183.92.209
156.20.116.83	Find precise map location of 156.20.116.83
93.178.121.156	Find precise map location of 93.178.121.156
152.103.6.96	Find precise map location of 152.103.6.96

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