18.31.30 is a class C of IPs

Sample IPs from the class C 18.31.30

18.31.30.245	View precise location of 18.31.30.245 on the map!
18.31.30.52	View precise location of 18.31.30.52 on the map!
18.31.30.49	View precise location of 18.31.30.49 on the map!
18.31.30.207	View precise location of 18.31.30.207 on the map!
18.31.30.108	View precise location of 18.31.30.108 on the map!
18.31.30.87	View precise location of 18.31.30.87 on the map!
18.31.30.181	View precise location of 18.31.30.181 on the map!
18.31.30.195	View precise location of 18.31.30.195 on the map!
18.31.30.225	View precise location of 18.31.30.225 on the map!
18.31.30.31	View precise location of 18.31.30.31 on the map!
18.31.30.175	View precise location of 18.31.30.175 on the map!

10 Random IPs

49.73.112.188	Find precise map location of 49.73.112.188
167.164.41.129	Find precise map location of 167.164.41.129
232.124.148.186	Find precise map location of 232.124.148.186
210.245.18.253	Find precise map location of 210.245.18.253
235.151.175.203	Find precise map location of 235.151.175.203
6.252.241.110	Find precise map location of 6.252.241.110
202.155.122.16	Find precise map location of 202.155.122.16
62.202.17.39	Find precise map location of 62.202.17.39
157.153.134.146	Find precise map location of 157.153.134.146
101.186.190.200	Find precise map location of 101.186.190.200
29.156.27.217	Find precise map location of 29.156.27.217

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