21.171.38 is a class C of IPs

Sample IPs from the class C 21.171.38

21.171.38.52	View precise location of 21.171.38.52 on the map!
21.171.38.155	View precise location of 21.171.38.155 on the map!
21.171.38.46	View precise location of 21.171.38.46 on the map!
21.171.38.12	View precise location of 21.171.38.12 on the map!
21.171.38.216	View precise location of 21.171.38.216 on the map!
21.171.38.179	View precise location of 21.171.38.179 on the map!
21.171.38.217	View precise location of 21.171.38.217 on the map!
21.171.38.127	View precise location of 21.171.38.127 on the map!
21.171.38.228	View precise location of 21.171.38.228 on the map!
21.171.38.193	View precise location of 21.171.38.193 on the map!
21.171.38.116	View precise location of 21.171.38.116 on the map!

10 Random IPs

112.110.43.215	Find precise map location of 112.110.43.215
171.212.65.210	Find precise map location of 171.212.65.210
87.78.77.133	Find precise map location of 87.78.77.133
150.222.199.215	Find precise map location of 150.222.199.215
120.86.104.122	Find precise map location of 120.86.104.122
100.175.73.73	Find precise map location of 100.175.73.73
169.206.216.187	Find precise map location of 169.206.216.187
81.106.34.97	Find precise map location of 81.106.34.97
220.216.226.1	Find precise map location of 220.216.226.1
11.204.44.107	Find precise map location of 11.204.44.107
15.221.236.77	Find precise map location of 15.221.236.77

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