239.135.57 is a class C of IPs

Sample IPs from the class C 239.135.57

239.135.57.72	View precise location of 239.135.57.72 on the map!
239.135.57.5	View precise location of 239.135.57.5 on the map!
239.135.57.220	View precise location of 239.135.57.220 on the map!
239.135.57.221	View precise location of 239.135.57.221 on the map!
239.135.57.171	View precise location of 239.135.57.171 on the map!
239.135.57.155	View precise location of 239.135.57.155 on the map!
239.135.57.117	View precise location of 239.135.57.117 on the map!
239.135.57.13	View precise location of 239.135.57.13 on the map!
239.135.57.138	View precise location of 239.135.57.138 on the map!
239.135.57.154	View precise location of 239.135.57.154 on the map!
239.135.57.196	View precise location of 239.135.57.196 on the map!

10 Random IPs

251.29.203.8	Find precise map location of 251.29.203.8
68.34.9.149	Find precise map location of 68.34.9.149
80.115.58.144	Find precise map location of 80.115.58.144
93.28.37.237	Find precise map location of 93.28.37.237
27.33.111.112	Find precise map location of 27.33.111.112
101.91.17.5	Find precise map location of 101.91.17.5
185.72.118.27	Find precise map location of 185.72.118.27
53.94.2.128	Find precise map location of 53.94.2.128
31.29.107.180	Find precise map location of 31.29.107.180
151.42.212.248	Find precise map location of 151.42.212.248
202.61.218.159	Find precise map location of 202.61.218.159

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