12.18.121 is a class C of IPs

Sample IPs from the class C 12.18.121

12.18.121.25	View precise location of 12.18.121.25 on the map!
12.18.121.46	View precise location of 12.18.121.46 on the map!
12.18.121.223	View precise location of 12.18.121.223 on the map!
12.18.121.240	View precise location of 12.18.121.240 on the map!
12.18.121.147	View precise location of 12.18.121.147 on the map!
12.18.121.167	View precise location of 12.18.121.167 on the map!
12.18.121.202	View precise location of 12.18.121.202 on the map!
12.18.121.74	View precise location of 12.18.121.74 on the map!
12.18.121.167	View precise location of 12.18.121.167 on the map!
12.18.121.214	View precise location of 12.18.121.214 on the map!
12.18.121.96	View precise location of 12.18.121.96 on the map!

10 Random IPs

85.197.156.124	Find precise map location of 85.197.156.124
110.175.154.50	Find precise map location of 110.175.154.50
208.40.156.255	Find precise map location of 208.40.156.255
148.93.34.180	Find precise map location of 148.93.34.180
45.53.82.185	Find precise map location of 45.53.82.185
67.180.181.36	Find precise map location of 67.180.181.36
44.16.5.38	Find precise map location of 44.16.5.38
104.114.18.69	Find precise map location of 104.114.18.69
173.232.234.194	Find precise map location of 173.232.234.194
121.187.143.187	Find precise map location of 121.187.143.187
26.204.192.254	Find precise map location of 26.204.192.254

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