121.153.63 is a class C of IPs

Sample IPs from the class C 121.153.63

121.153.63.8	View precise location of 121.153.63.8 on the map!
121.153.63.58	View precise location of 121.153.63.58 on the map!
121.153.63.89	View precise location of 121.153.63.89 on the map!
121.153.63.124	View precise location of 121.153.63.124 on the map!
121.153.63.6	View precise location of 121.153.63.6 on the map!
121.153.63.200	View precise location of 121.153.63.200 on the map!
121.153.63.191	View precise location of 121.153.63.191 on the map!
121.153.63.227	View precise location of 121.153.63.227 on the map!
121.153.63.196	View precise location of 121.153.63.196 on the map!
121.153.63.137	View precise location of 121.153.63.137 on the map!
121.153.63.121	View precise location of 121.153.63.121 on the map!

10 Random IPs

164.103.219.193	Find precise map location of 164.103.219.193
68.56.219.39	Find precise map location of 68.56.219.39
152.236.172.160	Find precise map location of 152.236.172.160
49.234.56.184	Find precise map location of 49.234.56.184
102.41.43.32	Find precise map location of 102.41.43.32
225.82.17.32	Find precise map location of 225.82.17.32
209.47.196.34	Find precise map location of 209.47.196.34
45.195.133.13	Find precise map location of 45.195.133.13
177.73.91.111	Find precise map location of 177.73.91.111
8.138.52.199	Find precise map location of 8.138.52.199
117.219.112.151	Find precise map location of 117.219.112.151

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