239.57.173 is a class C of IPs

Sample IPs from the class C 239.57.173

239.57.173.234	View precise location of 239.57.173.234 on the map!
239.57.173.170	View precise location of 239.57.173.170 on the map!
239.57.173.42	View precise location of 239.57.173.42 on the map!
239.57.173.61	View precise location of 239.57.173.61 on the map!
239.57.173.6	View precise location of 239.57.173.6 on the map!
239.57.173.86	View precise location of 239.57.173.86 on the map!
239.57.173.209	View precise location of 239.57.173.209 on the map!
239.57.173.34	View precise location of 239.57.173.34 on the map!
239.57.173.81	View precise location of 239.57.173.81 on the map!
239.57.173.140	View precise location of 239.57.173.140 on the map!
239.57.173.216	View precise location of 239.57.173.216 on the map!

10 Random IPs

90.82.247.170	Find precise map location of 90.82.247.170
56.54.52.254	Find precise map location of 56.54.52.254
199.180.39.190	Find precise map location of 199.180.39.190
222.227.62.28	Find precise map location of 222.227.62.28
195.136.142.54	Find precise map location of 195.136.142.54
66.6.61.244	Find precise map location of 66.6.61.244
119.157.133.152	Find precise map location of 119.157.133.152
108.151.72.40	Find precise map location of 108.151.72.40
40.110.186.52	Find precise map location of 40.110.186.52
252.56.248.89	Find precise map location of 252.56.248.89
111.195.172.125	Find precise map location of 111.195.172.125

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