21.106.38 is a class C of IPs

Sample IPs from the class C 21.106.38

21.106.38.155	View precise location of 21.106.38.155 on the map!
21.106.38.244	View precise location of 21.106.38.244 on the map!
21.106.38.102	View precise location of 21.106.38.102 on the map!
21.106.38.154	View precise location of 21.106.38.154 on the map!
21.106.38.4	View precise location of 21.106.38.4 on the map!
21.106.38.139	View precise location of 21.106.38.139 on the map!
21.106.38.227	View precise location of 21.106.38.227 on the map!
21.106.38.217	View precise location of 21.106.38.217 on the map!
21.106.38.107	View precise location of 21.106.38.107 on the map!
21.106.38.102	View precise location of 21.106.38.102 on the map!
21.106.38.116	View precise location of 21.106.38.116 on the map!

10 Random IPs

96.116.5.166	Find precise map location of 96.116.5.166
17.78.135.255	Find precise map location of 17.78.135.255
133.22.164.218	Find precise map location of 133.22.164.218
124.251.213.53	Find precise map location of 124.251.213.53
183.53.211.1	Find precise map location of 183.53.211.1
170.233.27.147	Find precise map location of 170.233.27.147
232.72.121.56	Find precise map location of 232.72.121.56
16.12.149.124	Find precise map location of 16.12.149.124
136.201.55.41	Find precise map location of 136.201.55.41
191.56.37.87	Find precise map location of 191.56.37.87
164.102.82.94	Find precise map location of 164.102.82.94

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