139.145.221 is a class C of IPs

Sample IPs from the class C 139.145.221

139.145.221.69	View precise location of 139.145.221.69 on the map!
139.145.221.108	View precise location of 139.145.221.108 on the map!
139.145.221.71	View precise location of 139.145.221.71 on the map!
139.145.221.71	View precise location of 139.145.221.71 on the map!
139.145.221.155	View precise location of 139.145.221.155 on the map!
139.145.221.53	View precise location of 139.145.221.53 on the map!
139.145.221.3	View precise location of 139.145.221.3 on the map!
139.145.221.71	View precise location of 139.145.221.71 on the map!
139.145.221.253	View precise location of 139.145.221.253 on the map!
139.145.221.25	View precise location of 139.145.221.25 on the map!
139.145.221.75	View precise location of 139.145.221.75 on the map!

10 Random IPs

7.139.228.133	Find precise map location of 7.139.228.133
61.130.186.147	Find precise map location of 61.130.186.147
72.168.42.12	Find precise map location of 72.168.42.12
174.241.232.108	Find precise map location of 174.241.232.108
253.97.66.47	Find precise map location of 253.97.66.47
94.82.141.182	Find precise map location of 94.82.141.182
120.104.143.202	Find precise map location of 120.104.143.202
225.234.7.93	Find precise map location of 225.234.7.93
12.205.144.50	Find precise map location of 12.205.144.50
152.199.218.25	Find precise map location of 152.199.218.25
121.112.25.117	Find precise map location of 121.112.25.117

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