3.121.11 is a class C of IPs

Sample IPs from the class C 3.121.11

3.121.11.220	View precise location of 3.121.11.220 on the map!
3.121.11.165	View precise location of 3.121.11.165 on the map!
3.121.11.226	View precise location of 3.121.11.226 on the map!
3.121.11.170	View precise location of 3.121.11.170 on the map!
3.121.11.250	View precise location of 3.121.11.250 on the map!
3.121.11.37	View precise location of 3.121.11.37 on the map!
3.121.11.215	View precise location of 3.121.11.215 on the map!
3.121.11.65	View precise location of 3.121.11.65 on the map!
3.121.11.115	View precise location of 3.121.11.115 on the map!
3.121.11.43	View precise location of 3.121.11.43 on the map!
3.121.11.214	View precise location of 3.121.11.214 on the map!

10 Random IPs

228.225.176.4	Find precise map location of 228.225.176.4
128.133.169.16	Find precise map location of 128.133.169.16
30.128.135.60	Find precise map location of 30.128.135.60
163.113.34.163	Find precise map location of 163.113.34.163
222.220.122.29	Find precise map location of 222.220.122.29
63.168.221.233	Find precise map location of 63.168.221.233
238.141.224.7	Find precise map location of 238.141.224.7
1.74.82.184	Find precise map location of 1.74.82.184
212.222.37.151	Find precise map location of 212.222.37.151
227.252.64.100	Find precise map location of 227.252.64.100
84.224.251.247	Find precise map location of 84.224.251.247

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