140.63.121 is a class C of IPs

Sample IPs from the class C 140.63.121

140.63.121.4	View precise location of 140.63.121.4 on the map!
140.63.121.128	View precise location of 140.63.121.128 on the map!
140.63.121.177	View precise location of 140.63.121.177 on the map!
140.63.121.143	View precise location of 140.63.121.143 on the map!
140.63.121.179	View precise location of 140.63.121.179 on the map!
140.63.121.108	View precise location of 140.63.121.108 on the map!
140.63.121.174	View precise location of 140.63.121.174 on the map!
140.63.121.180	View precise location of 140.63.121.180 on the map!
140.63.121.179	View precise location of 140.63.121.179 on the map!
140.63.121.145	View precise location of 140.63.121.145 on the map!
140.63.121.13	View precise location of 140.63.121.13 on the map!

10 Random IPs

244.11.219.115	Find precise map location of 244.11.219.115
216.70.9.142	Find precise map location of 216.70.9.142
48.15.167.69	Find precise map location of 48.15.167.69
84.217.3.137	Find precise map location of 84.217.3.137
130.98.125.157	Find precise map location of 130.98.125.157
143.73.45.67	Find precise map location of 143.73.45.67
80.181.149.100	Find precise map location of 80.181.149.100
6.122.228.45	Find precise map location of 6.122.228.45
180.52.39.67	Find precise map location of 180.52.39.67
223.94.64.250	Find precise map location of 223.94.64.250
56.150.144.157	Find precise map location of 56.150.144.157

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