138.157.141 is a class C of IPs

Sample IPs from the class C 138.157.141

138.157.141.12	View precise location of 138.157.141.12 on the map!
138.157.141.63	View precise location of 138.157.141.63 on the map!
138.157.141.135	View precise location of 138.157.141.135 on the map!
138.157.141.20	View precise location of 138.157.141.20 on the map!
138.157.141.175	View precise location of 138.157.141.175 on the map!
138.157.141.239	View precise location of 138.157.141.239 on the map!
138.157.141.236	View precise location of 138.157.141.236 on the map!
138.157.141.224	View precise location of 138.157.141.224 on the map!
138.157.141.195	View precise location of 138.157.141.195 on the map!
138.157.141.253	View precise location of 138.157.141.253 on the map!
138.157.141.123	View precise location of 138.157.141.123 on the map!

10 Random IPs

92.130.198.16	Find precise map location of 92.130.198.16
122.253.101.195	Find precise map location of 122.253.101.195
119.106.66.108	Find precise map location of 119.106.66.108
1.251.69.120	Find precise map location of 1.251.69.120
216.185.110.163	Find precise map location of 216.185.110.163
91.100.107.48	Find precise map location of 91.100.107.48
155.12.44.124	Find precise map location of 155.12.44.124
101.67.16.121	Find precise map location of 101.67.16.121
223.76.153.4	Find precise map location of 223.76.153.4
7.148.76.10	Find precise map location of 7.148.76.10
32.22.189.231	Find precise map location of 32.22.189.231

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