138.18.181 is a class C of IPs

Sample IPs from the class C 138.18.181

138.18.181.187	View precise location of 138.18.181.187 on the map!
138.18.181.147	View precise location of 138.18.181.147 on the map!
138.18.181.126	View precise location of 138.18.181.126 on the map!
138.18.181.112	View precise location of 138.18.181.112 on the map!
138.18.181.214	View precise location of 138.18.181.214 on the map!
138.18.181.22	View precise location of 138.18.181.22 on the map!
138.18.181.161	View precise location of 138.18.181.161 on the map!
138.18.181.88	View precise location of 138.18.181.88 on the map!
138.18.181.113	View precise location of 138.18.181.113 on the map!
138.18.181.200	View precise location of 138.18.181.200 on the map!
138.18.181.133	View precise location of 138.18.181.133 on the map!

10 Random IPs

198.25.21.186	Find precise map location of 198.25.21.186
82.44.187.170	Find precise map location of 82.44.187.170
79.235.167.238	Find precise map location of 79.235.167.238
140.196.179.228	Find precise map location of 140.196.179.228
102.125.111.157	Find precise map location of 102.125.111.157
193.157.232.111	Find precise map location of 193.157.232.111
16.167.103.218	Find precise map location of 16.167.103.218
52.57.174.210	Find precise map location of 52.57.174.210
83.190.150.23	Find precise map location of 83.190.150.23
66.116.147.63	Find precise map location of 66.116.147.63
200.214.193.76	Find precise map location of 200.214.193.76

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