71.57.191 is a class C of IPs

Sample IPs from the class C 71.57.191

71.57.191.23	View precise location of 71.57.191.23 on the map!
71.57.191.195	View precise location of 71.57.191.195 on the map!
71.57.191.228	View precise location of 71.57.191.228 on the map!
71.57.191.211	View precise location of 71.57.191.211 on the map!
71.57.191.240	View precise location of 71.57.191.240 on the map!
71.57.191.174	View precise location of 71.57.191.174 on the map!
71.57.191.76	View precise location of 71.57.191.76 on the map!
71.57.191.18	View precise location of 71.57.191.18 on the map!
71.57.191.18	View precise location of 71.57.191.18 on the map!
71.57.191.3	View precise location of 71.57.191.3 on the map!
71.57.191.52	View precise location of 71.57.191.52 on the map!

10 Random IPs

148.70.61.142	Find precise map location of 148.70.61.142
154.79.190.25	Find precise map location of 154.79.190.25
55.17.227.100	Find precise map location of 55.17.227.100
64.49.82.31	Find precise map location of 64.49.82.31
73.181.238.168	Find precise map location of 73.181.238.168
181.54.106.71	Find precise map location of 181.54.106.71
90.214.165.221	Find precise map location of 90.214.165.221
187.123.240.165	Find precise map location of 187.123.240.165
102.200.232.60	Find precise map location of 102.200.232.60
82.30.190.44	Find precise map location of 82.30.190.44
154.217.98.77	Find precise map location of 154.217.98.77

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