31.138.40 is a class C of IPs

Sample IPs from the class C 31.138.40

31.138.40.43	View precise location of 31.138.40.43 on the map!
31.138.40.99	View precise location of 31.138.40.99 on the map!
31.138.40.23	View precise location of 31.138.40.23 on the map!
31.138.40.168	View precise location of 31.138.40.168 on the map!
31.138.40.196	View precise location of 31.138.40.196 on the map!
31.138.40.215	View precise location of 31.138.40.215 on the map!
31.138.40.15	View precise location of 31.138.40.15 on the map!
31.138.40.31	View precise location of 31.138.40.31 on the map!
31.138.40.120	View precise location of 31.138.40.120 on the map!
31.138.40.59	View precise location of 31.138.40.59 on the map!
31.138.40.41	View precise location of 31.138.40.41 on the map!

10 Random IPs

133.160.41.108	Find precise map location of 133.160.41.108
227.29.130.151	Find precise map location of 227.29.130.151
175.227.65.212	Find precise map location of 175.227.65.212
81.203.107.2	Find precise map location of 81.203.107.2
49.88.133.251	Find precise map location of 49.88.133.251
3.121.231.109	Find precise map location of 3.121.231.109
240.75.230.104	Find precise map location of 240.75.230.104
40.181.208.237	Find precise map location of 40.181.208.237
220.134.199.59	Find precise map location of 220.134.199.59
195.148.77.222	Find precise map location of 195.148.77.222
40.158.1.118	Find precise map location of 40.158.1.118

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