138.42.19 is a class C of IPs

Sample IPs from the class C 138.42.19

138.42.19.159	View precise location of 138.42.19.159 on the map!
138.42.19.46	View precise location of 138.42.19.46 on the map!
138.42.19.124	View precise location of 138.42.19.124 on the map!
138.42.19.174	View precise location of 138.42.19.174 on the map!
138.42.19.109	View precise location of 138.42.19.109 on the map!
138.42.19.112	View precise location of 138.42.19.112 on the map!
138.42.19.222	View precise location of 138.42.19.222 on the map!
138.42.19.188	View precise location of 138.42.19.188 on the map!
138.42.19.83	View precise location of 138.42.19.83 on the map!
138.42.19.112	View precise location of 138.42.19.112 on the map!
138.42.19.24	View precise location of 138.42.19.24 on the map!

10 Random IPs

42.24.75.245	Find precise map location of 42.24.75.245
145.109.183.142	Find precise map location of 145.109.183.142
33.60.156.32	Find precise map location of 33.60.156.32
34.40.63.101	Find precise map location of 34.40.63.101
10.244.239.131	Find precise map location of 10.244.239.131
192.186.5.128	Find precise map location of 192.186.5.128
118.41.46.169	Find precise map location of 118.41.46.169
28.136.168.142	Find precise map location of 28.136.168.142
68.214.201.34	Find precise map location of 68.214.201.34
143.114.62.137	Find precise map location of 143.114.62.137
24.66.31.83	Find precise map location of 24.66.31.83

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