15.143.138 is a class C of IPs

Sample IPs from the class C 15.143.138

15.143.138.80	View precise location of 15.143.138.80 on the map!
15.143.138.125	View precise location of 15.143.138.125 on the map!
15.143.138.163	View precise location of 15.143.138.163 on the map!
15.143.138.71	View precise location of 15.143.138.71 on the map!
15.143.138.66	View precise location of 15.143.138.66 on the map!
15.143.138.38	View precise location of 15.143.138.38 on the map!
15.143.138.157	View precise location of 15.143.138.157 on the map!
15.143.138.187	View precise location of 15.143.138.187 on the map!
15.143.138.63	View precise location of 15.143.138.63 on the map!
15.143.138.222	View precise location of 15.143.138.222 on the map!
15.143.138.177	View precise location of 15.143.138.177 on the map!

10 Random IPs

36.85.169.169	Find precise map location of 36.85.169.169
24.34.77.18	Find precise map location of 24.34.77.18
246.42.111.49	Find precise map location of 246.42.111.49
227.238.38.100	Find precise map location of 227.238.38.100
239.24.229.174	Find precise map location of 239.24.229.174
74.90.182.59	Find precise map location of 74.90.182.59
58.185.152.183	Find precise map location of 58.185.152.183
220.199.97.9	Find precise map location of 220.199.97.9
66.226.251.6	Find precise map location of 66.226.251.6
51.36.219.74	Find precise map location of 51.36.219.74
253.175.111.13	Find precise map location of 253.175.111.13

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