139.4.91 is a class C of IPs

Sample IPs from the class C 139.4.91

139.4.91.65	View precise location of 139.4.91.65 on the map!
139.4.91.167	View precise location of 139.4.91.167 on the map!
139.4.91.11	View precise location of 139.4.91.11 on the map!
139.4.91.25	View precise location of 139.4.91.25 on the map!
139.4.91.66	View precise location of 139.4.91.66 on the map!
139.4.91.240	View precise location of 139.4.91.240 on the map!
139.4.91.94	View precise location of 139.4.91.94 on the map!
139.4.91.121	View precise location of 139.4.91.121 on the map!
139.4.91.152	View precise location of 139.4.91.152 on the map!
139.4.91.115	View precise location of 139.4.91.115 on the map!
139.4.91.77	View precise location of 139.4.91.77 on the map!

10 Random IPs

206.11.104.91	Find precise map location of 206.11.104.91
248.56.106.138	Find precise map location of 248.56.106.138
145.170.145.98	Find precise map location of 145.170.145.98
31.154.238.143	Find precise map location of 31.154.238.143
105.38.10.116	Find precise map location of 105.38.10.116
197.38.107.66	Find precise map location of 197.38.107.66
140.24.19.60	Find precise map location of 140.24.19.60
254.191.133.156	Find precise map location of 254.191.133.156
226.236.150.81	Find precise map location of 226.236.150.81
208.99.23.217	Find precise map location of 208.99.23.217
132.189.41.215	Find precise map location of 132.189.41.215

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