138.157.75 is a class C of IPs

Sample IPs from the class C 138.157.75

138.157.75.81	View precise location of 138.157.75.81 on the map!
138.157.75.253	View precise location of 138.157.75.253 on the map!
138.157.75.226	View precise location of 138.157.75.226 on the map!
138.157.75.210	View precise location of 138.157.75.210 on the map!
138.157.75.52	View precise location of 138.157.75.52 on the map!
138.157.75.34	View precise location of 138.157.75.34 on the map!
138.157.75.223	View precise location of 138.157.75.223 on the map!
138.157.75.170	View precise location of 138.157.75.170 on the map!
138.157.75.219	View precise location of 138.157.75.219 on the map!
138.157.75.97	View precise location of 138.157.75.97 on the map!
138.157.75.250	View precise location of 138.157.75.250 on the map!

10 Random IPs

31.25.118.128	Find precise map location of 31.25.118.128
240.198.1.17	Find precise map location of 240.198.1.17
50.57.156.43	Find precise map location of 50.57.156.43
197.157.44.106	Find precise map location of 197.157.44.106
167.207.244.247	Find precise map location of 167.207.244.247
127.227.247.8	Find precise map location of 127.227.247.8
249.23.83.34	Find precise map location of 249.23.83.34
184.44.234.131	Find precise map location of 184.44.234.131
202.246.31.136	Find precise map location of 202.246.31.136
233.94.185.64	Find precise map location of 233.94.185.64
192.83.26.94	Find precise map location of 192.83.26.94

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