121.207.157 is a class C of IPs

Sample IPs from the class C 121.207.157

121.207.157.83	View precise location of 121.207.157.83 on the map!
121.207.157.182	View precise location of 121.207.157.182 on the map!
121.207.157.174	View precise location of 121.207.157.174 on the map!
121.207.157.200	View precise location of 121.207.157.200 on the map!
121.207.157.170	View precise location of 121.207.157.170 on the map!
121.207.157.249	View precise location of 121.207.157.249 on the map!
121.207.157.78	View precise location of 121.207.157.78 on the map!
121.207.157.170	View precise location of 121.207.157.170 on the map!
121.207.157.106	View precise location of 121.207.157.106 on the map!
121.207.157.153	View precise location of 121.207.157.153 on the map!
121.207.157.249	View precise location of 121.207.157.249 on the map!

10 Random IPs

14.243.12.82	Find precise map location of 14.243.12.82
194.27.226.110	Find precise map location of 194.27.226.110
95.51.94.28	Find precise map location of 95.51.94.28
230.161.227.201	Find precise map location of 230.161.227.201
138.5.2.143	Find precise map location of 138.5.2.143
127.92.54.250	Find precise map location of 127.92.54.250
142.21.29.238	Find precise map location of 142.21.29.238
213.209.148.28	Find precise map location of 213.209.148.28
21.237.11.219	Find precise map location of 21.237.11.219
253.100.46.156	Find precise map location of 253.100.46.156
42.128.81.8	Find precise map location of 42.128.81.8

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