120.121.23 is a class C of IPs

Sample IPs from the class C 120.121.23

120.121.23.8	View precise location of 120.121.23.8 on the map!
120.121.23.216	View precise location of 120.121.23.216 on the map!
120.121.23.227	View precise location of 120.121.23.227 on the map!
120.121.23.137	View precise location of 120.121.23.137 on the map!
120.121.23.164	View precise location of 120.121.23.164 on the map!
120.121.23.36	View precise location of 120.121.23.36 on the map!
120.121.23.195	View precise location of 120.121.23.195 on the map!
120.121.23.197	View precise location of 120.121.23.197 on the map!
120.121.23.39	View precise location of 120.121.23.39 on the map!
120.121.23.125	View precise location of 120.121.23.125 on the map!
120.121.23.225	View precise location of 120.121.23.225 on the map!

10 Random IPs

53.13.67.225	Find precise map location of 53.13.67.225
231.43.214.53	Find precise map location of 231.43.214.53
189.123.135.199	Find precise map location of 189.123.135.199
32.149.249.122	Find precise map location of 32.149.249.122
192.227.211.32	Find precise map location of 192.227.211.32
50.27.175.144	Find precise map location of 50.27.175.144
69.211.54.56	Find precise map location of 69.211.54.56
108.2.135.24	Find precise map location of 108.2.135.24
49.138.93.175	Find precise map location of 49.138.93.175
203.66.165.130	Find precise map location of 203.66.165.130
192.28.255.32	Find precise map location of 192.28.255.32

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