21.38.216 is a class C of IPs

Sample IPs from the class C 21.38.216

21.38.216.233	View precise location of 21.38.216.233 on the map!
21.38.216.14	View precise location of 21.38.216.14 on the map!
21.38.216.89	View precise location of 21.38.216.89 on the map!
21.38.216.65	View precise location of 21.38.216.65 on the map!
21.38.216.4	View precise location of 21.38.216.4 on the map!
21.38.216.217	View precise location of 21.38.216.217 on the map!
21.38.216.242	View precise location of 21.38.216.242 on the map!
21.38.216.248	View precise location of 21.38.216.248 on the map!
21.38.216.209	View precise location of 21.38.216.209 on the map!
21.38.216.70	View precise location of 21.38.216.70 on the map!
21.38.216.142	View precise location of 21.38.216.142 on the map!

10 Random IPs

250.57.85.189	Find precise map location of 250.57.85.189
143.142.13.202	Find precise map location of 143.142.13.202
178.63.217.147	Find precise map location of 178.63.217.147
155.122.184.210	Find precise map location of 155.122.184.210
15.97.164.22	Find precise map location of 15.97.164.22
254.7.14.141	Find precise map location of 254.7.14.141
78.151.145.78	Find precise map location of 78.151.145.78
29.67.121.174	Find precise map location of 29.67.121.174
27.139.22.93	Find precise map location of 27.139.22.93
30.159.171.128	Find precise map location of 30.159.171.128
60.172.202.241	Find precise map location of 60.172.202.241

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