137.72.56 is a class C of IPs

Sample IPs from the class C 137.72.56

137.72.56.127	View precise location of 137.72.56.127 on the map!
137.72.56.65	View precise location of 137.72.56.65 on the map!
137.72.56.193	View precise location of 137.72.56.193 on the map!
137.72.56.31	View precise location of 137.72.56.31 on the map!
137.72.56.16	View precise location of 137.72.56.16 on the map!
137.72.56.235	View precise location of 137.72.56.235 on the map!
137.72.56.8	View precise location of 137.72.56.8 on the map!
137.72.56.187	View precise location of 137.72.56.187 on the map!
137.72.56.97	View precise location of 137.72.56.97 on the map!
137.72.56.215	View precise location of 137.72.56.215 on the map!
137.72.56.129	View precise location of 137.72.56.129 on the map!

10 Random IPs

50.229.7.245	Find precise map location of 50.229.7.245
147.154.25.78	Find precise map location of 147.154.25.78
189.47.155.122	Find precise map location of 189.47.155.122
147.12.38.33	Find precise map location of 147.12.38.33
196.127.42.200	Find precise map location of 196.127.42.200
104.219.212.247	Find precise map location of 104.219.212.247
199.251.217.226	Find precise map location of 199.251.217.226
109.78.207.67	Find precise map location of 109.78.207.67
195.215.161.246	Find precise map location of 195.215.161.246
60.229.215.254	Find precise map location of 60.229.215.254
222.198.117.108	Find precise map location of 222.198.117.108

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