152.171.21 is a class C of IPs

Sample IPs from the class C 152.171.21

152.171.21.23	View precise location of 152.171.21.23 on the map!
152.171.21.80	View precise location of 152.171.21.80 on the map!
152.171.21.8	View precise location of 152.171.21.8 on the map!
152.171.21.49	View precise location of 152.171.21.49 on the map!
152.171.21.53	View precise location of 152.171.21.53 on the map!
152.171.21.3	View precise location of 152.171.21.3 on the map!
152.171.21.153	View precise location of 152.171.21.153 on the map!
152.171.21.110	View precise location of 152.171.21.110 on the map!
152.171.21.168	View precise location of 152.171.21.168 on the map!
152.171.21.114	View precise location of 152.171.21.114 on the map!
152.171.21.243	View precise location of 152.171.21.243 on the map!

10 Random IPs

6.238.51.170	Find precise map location of 6.238.51.170
201.213.176.209	Find precise map location of 201.213.176.209
49.53.1.37	Find precise map location of 49.53.1.37
100.194.108.112	Find precise map location of 100.194.108.112
252.136.139.106	Find precise map location of 252.136.139.106
142.227.99.180	Find precise map location of 142.227.99.180
117.142.91.36	Find precise map location of 117.142.91.36
155.200.196.75	Find precise map location of 155.200.196.75
91.15.164.17	Find precise map location of 91.15.164.17
252.12.151.149	Find precise map location of 252.12.151.149
65.79.150.175	Find precise map location of 65.79.150.175

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