137.31.54 is a class C of IPs

Sample IPs from the class C 137.31.54

137.31.54.121	View precise location of 137.31.54.121 on the map!
137.31.54.243	View precise location of 137.31.54.243 on the map!
137.31.54.216	View precise location of 137.31.54.216 on the map!
137.31.54.63	View precise location of 137.31.54.63 on the map!
137.31.54.108	View precise location of 137.31.54.108 on the map!
137.31.54.210	View precise location of 137.31.54.210 on the map!
137.31.54.212	View precise location of 137.31.54.212 on the map!
137.31.54.235	View precise location of 137.31.54.235 on the map!
137.31.54.75	View precise location of 137.31.54.75 on the map!
137.31.54.173	View precise location of 137.31.54.173 on the map!
137.31.54.181	View precise location of 137.31.54.181 on the map!

10 Random IPs

57.66.184.81	Find precise map location of 57.66.184.81
150.36.75.148	Find precise map location of 150.36.75.148
70.68.117.138	Find precise map location of 70.68.117.138
172.119.141.215	Find precise map location of 172.119.141.215
172.127.30.11	Find precise map location of 172.127.30.11
132.209.116.221	Find precise map location of 132.209.116.221
70.140.85.67	Find precise map location of 70.140.85.67
165.151.103.1	Find precise map location of 165.151.103.1
69.188.176.201	Find precise map location of 69.188.176.201
108.172.178.50	Find precise map location of 108.172.178.50
134.242.169.148	Find precise map location of 134.242.169.148

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