121.201.31 is a class C of IPs

Sample IPs from the class C 121.201.31

121.201.31.100	View precise location of 121.201.31.100 on the map!
121.201.31.196	View precise location of 121.201.31.196 on the map!
121.201.31.85	View precise location of 121.201.31.85 on the map!
121.201.31.122	View precise location of 121.201.31.122 on the map!
121.201.31.20	View precise location of 121.201.31.20 on the map!
121.201.31.221	View precise location of 121.201.31.221 on the map!
121.201.31.22	View precise location of 121.201.31.22 on the map!
121.201.31.189	View precise location of 121.201.31.189 on the map!
121.201.31.75	View precise location of 121.201.31.75 on the map!
121.201.31.59	View precise location of 121.201.31.59 on the map!
121.201.31.142	View precise location of 121.201.31.142 on the map!

10 Random IPs

77.169.43.94	Find precise map location of 77.169.43.94
184.74.213.69	Find precise map location of 184.74.213.69
191.177.82.127	Find precise map location of 191.177.82.127
198.176.25.13	Find precise map location of 198.176.25.13
41.238.141.190	Find precise map location of 41.238.141.190
203.192.196.114	Find precise map location of 203.192.196.114
195.164.236.224	Find precise map location of 195.164.236.224
132.192.154.56	Find precise map location of 132.192.154.56
199.176.83.17	Find precise map location of 199.176.83.17
199.245.250.190	Find precise map location of 199.245.250.190
22.225.153.138	Find precise map location of 22.225.153.138

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