21.76.216 is a class C of IPs

Sample IPs from the class C 21.76.216

21.76.216.155	View precise location of 21.76.216.155 on the map!
21.76.216.92	View precise location of 21.76.216.92 on the map!
21.76.216.95	View precise location of 21.76.216.95 on the map!
21.76.216.242	View precise location of 21.76.216.242 on the map!
21.76.216.65	View precise location of 21.76.216.65 on the map!
21.76.216.29	View precise location of 21.76.216.29 on the map!
21.76.216.207	View precise location of 21.76.216.207 on the map!
21.76.216.203	View precise location of 21.76.216.203 on the map!
21.76.216.232	View precise location of 21.76.216.232 on the map!
21.76.216.200	View precise location of 21.76.216.200 on the map!
21.76.216.244	View precise location of 21.76.216.244 on the map!

10 Random IPs

238.102.248.107	Find precise map location of 238.102.248.107
183.188.29.147	Find precise map location of 183.188.29.147
168.136.179.236	Find precise map location of 168.136.179.236
254.146.226.46	Find precise map location of 254.146.226.46
238.198.203.254	Find precise map location of 238.198.203.254
124.112.63.200	Find precise map location of 124.112.63.200
65.250.152.184	Find precise map location of 65.250.152.184
201.230.245.34	Find precise map location of 201.230.245.34
164.51.202.177	Find precise map location of 164.51.202.177
53.12.150.167	Find precise map location of 53.12.150.167
149.51.30.158	Find precise map location of 149.51.30.158

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