171.51.4 is a class C of IPs

Sample IPs from the class C 171.51.4

171.51.4.192	View precise location of 171.51.4.192 on the map!
171.51.4.92	View precise location of 171.51.4.92 on the map!
171.51.4.212	View precise location of 171.51.4.212 on the map!
171.51.4.3	View precise location of 171.51.4.3 on the map!
171.51.4.73	View precise location of 171.51.4.73 on the map!
171.51.4.245	View precise location of 171.51.4.245 on the map!
171.51.4.193	View precise location of 171.51.4.193 on the map!
171.51.4.121	View precise location of 171.51.4.121 on the map!
171.51.4.211	View precise location of 171.51.4.211 on the map!
171.51.4.63	View precise location of 171.51.4.63 on the map!
171.51.4.205	View precise location of 171.51.4.205 on the map!

10 Random IPs

130.176.198.254	Find precise map location of 130.176.198.254
157.3.173.20	Find precise map location of 157.3.173.20
159.104.211.232	Find precise map location of 159.104.211.232
178.250.207.115	Find precise map location of 178.250.207.115
199.191.120.247	Find precise map location of 199.191.120.247
205.16.39.40	Find precise map location of 205.16.39.40
233.209.20.133	Find precise map location of 233.209.20.133
117.112.140.169	Find precise map location of 117.112.140.169
229.137.226.201	Find precise map location of 229.137.226.201
84.16.92.69	Find precise map location of 84.16.92.69
167.160.214.132	Find precise map location of 167.160.214.132

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