18.20.240 is a class C of IPs

Sample IPs from the class C 18.20.240

18.20.240.37	View precise location of 18.20.240.37 on the map!
18.20.240.142	View precise location of 18.20.240.142 on the map!
18.20.240.15	View precise location of 18.20.240.15 on the map!
18.20.240.234	View precise location of 18.20.240.234 on the map!
18.20.240.215	View precise location of 18.20.240.215 on the map!
18.20.240.129	View precise location of 18.20.240.129 on the map!
18.20.240.23	View precise location of 18.20.240.23 on the map!
18.20.240.132	View precise location of 18.20.240.132 on the map!
18.20.240.137	View precise location of 18.20.240.137 on the map!
18.20.240.76	View precise location of 18.20.240.76 on the map!
18.20.240.96	View precise location of 18.20.240.96 on the map!

10 Random IPs

141.100.247.77	Find precise map location of 141.100.247.77
53.187.221.142	Find precise map location of 53.187.221.142
191.215.117.181	Find precise map location of 191.215.117.181
188.103.92.119	Find precise map location of 188.103.92.119
82.134.59.211	Find precise map location of 82.134.59.211
244.224.10.148	Find precise map location of 244.224.10.148
70.3.199.121	Find precise map location of 70.3.199.121
161.182.238.72	Find precise map location of 161.182.238.72
233.54.212.68	Find precise map location of 233.54.212.68
35.117.231.77	Find precise map location of 35.117.231.77
228.232.222.122	Find precise map location of 228.232.222.122

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