72.121.37 is a class C of IPs

Sample IPs from the class C 72.121.37

72.121.37.204	View precise location of 72.121.37.204 on the map!
72.121.37.224	View precise location of 72.121.37.224 on the map!
72.121.37.33	View precise location of 72.121.37.33 on the map!
72.121.37.117	View precise location of 72.121.37.117 on the map!
72.121.37.162	View precise location of 72.121.37.162 on the map!
72.121.37.242	View precise location of 72.121.37.242 on the map!
72.121.37.220	View precise location of 72.121.37.220 on the map!
72.121.37.83	View precise location of 72.121.37.83 on the map!
72.121.37.5	View precise location of 72.121.37.5 on the map!
72.121.37.72	View precise location of 72.121.37.72 on the map!
72.121.37.125	View precise location of 72.121.37.125 on the map!

10 Random IPs

115.166.235.141	Find precise map location of 115.166.235.141
74.139.160.165	Find precise map location of 74.139.160.165
191.206.82.180	Find precise map location of 191.206.82.180
177.203.38.171	Find precise map location of 177.203.38.171
209.11.251.88	Find precise map location of 209.11.251.88
24.104.51.99	Find precise map location of 24.104.51.99
111.174.92.185	Find precise map location of 111.174.92.185
149.131.5.69	Find precise map location of 149.131.5.69
39.70.214.102	Find precise map location of 39.70.214.102
115.1.106.23	Find precise map location of 115.1.106.23
155.178.97.191	Find precise map location of 155.178.97.191

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