121.208.80 is a class C of IPs

Sample IPs from the class C 121.208.80

121.208.80.23	View precise location of 121.208.80.23 on the map!
121.208.80.142	View precise location of 121.208.80.142 on the map!
121.208.80.214	View precise location of 121.208.80.214 on the map!
121.208.80.58	View precise location of 121.208.80.58 on the map!
121.208.80.201	View precise location of 121.208.80.201 on the map!
121.208.80.155	View precise location of 121.208.80.155 on the map!
121.208.80.148	View precise location of 121.208.80.148 on the map!
121.208.80.83	View precise location of 121.208.80.83 on the map!
121.208.80.29	View precise location of 121.208.80.29 on the map!
121.208.80.20	View precise location of 121.208.80.20 on the map!
121.208.80.183	View precise location of 121.208.80.183 on the map!

10 Random IPs

132.70.77.139	Find precise map location of 132.70.77.139
20.190.128.149	Find precise map location of 20.190.128.149
150.71.133.101	Find precise map location of 150.71.133.101
87.40.30.196	Find precise map location of 87.40.30.196
227.61.184.216	Find precise map location of 227.61.184.216
30.223.54.5	Find precise map location of 30.223.54.5
27.40.105.49	Find precise map location of 27.40.105.49
84.146.202.37	Find precise map location of 84.146.202.37
168.13.237.23	Find precise map location of 168.13.237.23
164.71.117.254	Find precise map location of 164.71.117.254
195.169.128.175	Find precise map location of 195.169.128.175

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