120.21.154 is a class C of IPs

Sample IPs from the class C 120.21.154

120.21.154.91	View precise location of 120.21.154.91 on the map!
120.21.154.57	View precise location of 120.21.154.57 on the map!
120.21.154.60	View precise location of 120.21.154.60 on the map!
120.21.154.228	View precise location of 120.21.154.228 on the map!
120.21.154.81	View precise location of 120.21.154.81 on the map!
120.21.154.33	View precise location of 120.21.154.33 on the map!
120.21.154.217	View precise location of 120.21.154.217 on the map!
120.21.154.125	View precise location of 120.21.154.125 on the map!
120.21.154.181	View precise location of 120.21.154.181 on the map!
120.21.154.90	View precise location of 120.21.154.90 on the map!
120.21.154.221	View precise location of 120.21.154.221 on the map!

10 Random IPs

41.207.144.57	Find precise map location of 41.207.144.57
123.245.146.77	Find precise map location of 123.245.146.77
246.189.139.108	Find precise map location of 246.189.139.108
204.116.179.192	Find precise map location of 204.116.179.192
60.42.169.104	Find precise map location of 60.42.169.104
176.84.123.67	Find precise map location of 176.84.123.67
51.29.213.62	Find precise map location of 51.29.213.62
43.173.104.41	Find precise map location of 43.173.104.41
179.34.186.88	Find precise map location of 179.34.186.88
35.166.217.24	Find precise map location of 35.166.217.24
145.209.136.93	Find precise map location of 145.209.136.93

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