133.143.141 is a class C of IPs

Sample IPs from the class C 133.143.141

133.143.141.144	View precise location of 133.143.141.144 on the map!
133.143.141.32	View precise location of 133.143.141.32 on the map!
133.143.141.45	View precise location of 133.143.141.45 on the map!
133.143.141.10	View precise location of 133.143.141.10 on the map!
133.143.141.240	View precise location of 133.143.141.240 on the map!
133.143.141.249	View precise location of 133.143.141.249 on the map!
133.143.141.204	View precise location of 133.143.141.204 on the map!
133.143.141.18	View precise location of 133.143.141.18 on the map!
133.143.141.137	View precise location of 133.143.141.137 on the map!
133.143.141.225	View precise location of 133.143.141.225 on the map!
133.143.141.184	View precise location of 133.143.141.184 on the map!

10 Random IPs

144.31.133.223	Find precise map location of 144.31.133.223
127.246.22.7	Find precise map location of 127.246.22.7
119.156.249.147	Find precise map location of 119.156.249.147
224.222.100.80	Find precise map location of 224.222.100.80
75.207.128.97	Find precise map location of 75.207.128.97
199.199.70.131	Find precise map location of 199.199.70.131
115.92.240.17	Find precise map location of 115.92.240.17
5.109.41.59	Find precise map location of 5.109.41.59
115.31.151.140	Find precise map location of 115.31.151.140
146.138.251.28	Find precise map location of 146.138.251.28
148.46.96.215	Find precise map location of 148.46.96.215

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