239.31.5 is a class C of IPs

Sample IPs from the class C 239.31.5

239.31.5.58	View precise location of 239.31.5.58 on the map!
239.31.5.93	View precise location of 239.31.5.93 on the map!
239.31.5.25	View precise location of 239.31.5.25 on the map!
239.31.5.89	View precise location of 239.31.5.89 on the map!
239.31.5.161	View precise location of 239.31.5.161 on the map!
239.31.5.114	View precise location of 239.31.5.114 on the map!
239.31.5.239	View precise location of 239.31.5.239 on the map!
239.31.5.176	View precise location of 239.31.5.176 on the map!
239.31.5.184	View precise location of 239.31.5.184 on the map!
239.31.5.180	View precise location of 239.31.5.180 on the map!
239.31.5.250	View precise location of 239.31.5.250 on the map!

10 Random IPs

169.121.162.81	Find precise map location of 169.121.162.81
48.70.77.84	Find precise map location of 48.70.77.84
83.9.209.174	Find precise map location of 83.9.209.174
74.122.90.8	Find precise map location of 74.122.90.8
181.206.217.195	Find precise map location of 181.206.217.195
36.75.89.48	Find precise map location of 36.75.89.48
84.228.68.237	Find precise map location of 84.228.68.237
18.15.179.154	Find precise map location of 18.15.179.154
153.18.107.179	Find precise map location of 153.18.107.179
187.122.123.119	Find precise map location of 187.122.123.119
80.35.25.246	Find precise map location of 80.35.25.246

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