255.39.57 is a class C of IPs

Sample IPs from the class C 255.39.57

255.39.57.191	View precise location of 255.39.57.191 on the map!
255.39.57.71	View precise location of 255.39.57.71 on the map!
255.39.57.93	View precise location of 255.39.57.93 on the map!
255.39.57.116	View precise location of 255.39.57.116 on the map!
255.39.57.222	View precise location of 255.39.57.222 on the map!
255.39.57.18	View precise location of 255.39.57.18 on the map!
255.39.57.244	View precise location of 255.39.57.244 on the map!
255.39.57.65	View precise location of 255.39.57.65 on the map!
255.39.57.93	View precise location of 255.39.57.93 on the map!
255.39.57.89	View precise location of 255.39.57.89 on the map!
255.39.57.87	View precise location of 255.39.57.87 on the map!

10 Random IPs

20.13.96.22	Find precise map location of 20.13.96.22
224.169.15.178	Find precise map location of 224.169.15.178
212.10.138.229	Find precise map location of 212.10.138.229
26.132.117.135	Find precise map location of 26.132.117.135
142.169.137.182	Find precise map location of 142.169.137.182
114.143.165.53	Find precise map location of 114.143.165.53
215.68.119.40	Find precise map location of 215.68.119.40
94.81.152.139	Find precise map location of 94.81.152.139
62.211.42.44	Find precise map location of 62.211.42.44
197.14.107.20	Find precise map location of 197.14.107.20
188.192.14.202	Find precise map location of 188.192.14.202

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