220.21.20 is a class C of IPs

Sample IPs from the class C 220.21.20

220.21.20.178	View precise location of 220.21.20.178 on the map!
220.21.20.63	View precise location of 220.21.20.63 on the map!
220.21.20.2	View precise location of 220.21.20.2 on the map!
220.21.20.243	View precise location of 220.21.20.243 on the map!
220.21.20.173	View precise location of 220.21.20.173 on the map!
220.21.20.249	View precise location of 220.21.20.249 on the map!
220.21.20.232	View precise location of 220.21.20.232 on the map!
220.21.20.188	View precise location of 220.21.20.188 on the map!
220.21.20.227	View precise location of 220.21.20.227 on the map!
220.21.20.184	View precise location of 220.21.20.184 on the map!
220.21.20.237	View precise location of 220.21.20.237 on the map!

10 Random IPs

235.189.127.122	Find precise map location of 235.189.127.122
118.53.172.245	Find precise map location of 118.53.172.245
131.161.125.177	Find precise map location of 131.161.125.177
33.154.127.132	Find precise map location of 33.154.127.132
111.14.89.9	Find precise map location of 111.14.89.9
162.42.253.134	Find precise map location of 162.42.253.134
16.233.48.250	Find precise map location of 16.233.48.250
144.116.227.122	Find precise map location of 144.116.227.122
226.67.63.130	Find precise map location of 226.67.63.130
6.249.65.144	Find precise map location of 6.249.65.144
29.87.63.7	Find precise map location of 29.87.63.7

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