107.72.57 is a class C of IPs

Sample IPs from the class C 107.72.57

107.72.57.50	View precise location of 107.72.57.50 on the map!
107.72.57.33	View precise location of 107.72.57.33 on the map!
107.72.57.81	View precise location of 107.72.57.81 on the map!
107.72.57.82	View precise location of 107.72.57.82 on the map!
107.72.57.42	View precise location of 107.72.57.42 on the map!
107.72.57.34	View precise location of 107.72.57.34 on the map!
107.72.57.132	View precise location of 107.72.57.132 on the map!
107.72.57.83	View precise location of 107.72.57.83 on the map!
107.72.57.163	View precise location of 107.72.57.163 on the map!
107.72.57.45	View precise location of 107.72.57.45 on the map!
107.72.57.158	View precise location of 107.72.57.158 on the map!

10 Random IPs

193.239.1.243	Find precise map location of 193.239.1.243
67.79.5.177	Find precise map location of 67.79.5.177
85.136.158.205	Find precise map location of 85.136.158.205
71.42.221.98	Find precise map location of 71.42.221.98
237.247.36.222	Find precise map location of 237.247.36.222
210.13.3.27	Find precise map location of 210.13.3.27
254.12.229.41	Find precise map location of 254.12.229.41
50.152.149.94	Find precise map location of 50.152.149.94
174.220.33.21	Find precise map location of 174.220.33.21
164.124.188.60	Find precise map location of 164.124.188.60
13.245.252.133	Find precise map location of 13.245.252.133

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