31.39.15 is a class C of IPs

Sample IPs from the class C 31.39.15

31.39.15.172	View precise location of 31.39.15.172 on the map!
31.39.15.155	View precise location of 31.39.15.155 on the map!
31.39.15.204	View precise location of 31.39.15.204 on the map!
31.39.15.61	View precise location of 31.39.15.61 on the map!
31.39.15.48	View precise location of 31.39.15.48 on the map!
31.39.15.239	View precise location of 31.39.15.239 on the map!
31.39.15.191	View precise location of 31.39.15.191 on the map!
31.39.15.196	View precise location of 31.39.15.196 on the map!
31.39.15.179	View precise location of 31.39.15.179 on the map!
31.39.15.21	View precise location of 31.39.15.21 on the map!
31.39.15.130	View precise location of 31.39.15.130 on the map!

10 Random IPs

249.172.161.215	Find precise map location of 249.172.161.215
202.88.135.234	Find precise map location of 202.88.135.234
99.171.105.140	Find precise map location of 99.171.105.140
118.68.21.1	Find precise map location of 118.68.21.1
17.212.28.38	Find precise map location of 17.212.28.38
128.217.109.160	Find precise map location of 128.217.109.160
197.251.18.124	Find precise map location of 197.251.18.124
34.162.182.59	Find precise map location of 34.162.182.59
141.61.191.251	Find precise map location of 141.61.191.251
77.176.205.11	Find precise map location of 77.176.205.11
198.47.159.11	Find precise map location of 198.47.159.11

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