139.68 is a class B of IPs

Sample IPs from the class B 139.68

139.68.17.165	View precise location of 139.68.17.165 on the map!
139.68.3.200	View precise location of 139.68.3.200 on the map!
139.68.41.128	View precise location of 139.68.41.128 on the map!
139.68.137.242	View precise location of 139.68.137.242 on the map!
139.68.91.161	View precise location of 139.68.91.161 on the map!
139.68.51.221	View precise location of 139.68.51.221 on the map!
139.68.190.89	View precise location of 139.68.190.89 on the map!
139.68.132.94	View precise location of 139.68.132.94 on the map!
139.68.159.6	View precise location of 139.68.159.6 on the map!
139.68.209.72	View precise location of 139.68.209.72 on the map!
139.68.117.86	View precise location of 139.68.117.86 on the map!

10 Random IPs

195.242.21.224	Find precise map location of 195.242.21.224
65.31.195.80	Find precise map location of 65.31.195.80
20.174.182.27	Find precise map location of 20.174.182.27
69.142.242.136	Find precise map location of 69.142.242.136
168.41.236.1	Find precise map location of 168.41.236.1
231.99.31.217	Find precise map location of 231.99.31.217
31.93.79.4	Find precise map location of 31.93.79.4
147.212.24.144	Find precise map location of 147.212.24.144
11.212.186.158	Find precise map location of 11.212.186.158
27.180.63.41	Find precise map location of 27.180.63.41
116.77.72.19	Find precise map location of 116.77.72.19

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