158.143.31 is a class C of IPs

Sample IPs from the class C 158.143.31

158.143.31.234	View precise location of 158.143.31.234 on the map!
158.143.31.65	View precise location of 158.143.31.65 on the map!
158.143.31.212	View precise location of 158.143.31.212 on the map!
158.143.31.88	View precise location of 158.143.31.88 on the map!
158.143.31.138	View precise location of 158.143.31.138 on the map!
158.143.31.204	View precise location of 158.143.31.204 on the map!
158.143.31.109	View precise location of 158.143.31.109 on the map!
158.143.31.73	View precise location of 158.143.31.73 on the map!
158.143.31.104	View precise location of 158.143.31.104 on the map!
158.143.31.19	View precise location of 158.143.31.19 on the map!
158.143.31.253	View precise location of 158.143.31.253 on the map!

10 Random IPs

189.103.63.250	Find precise map location of 189.103.63.250
148.149.107.79	Find precise map location of 148.149.107.79
87.212.247.7	Find precise map location of 87.212.247.7
132.47.23.225	Find precise map location of 132.47.23.225
50.24.169.248	Find precise map location of 50.24.169.248
54.236.161.61	Find precise map location of 54.236.161.61
118.118.128.184	Find precise map location of 118.118.128.184
45.154.96.15	Find precise map location of 45.154.96.15
53.23.209.59	Find precise map location of 53.23.209.59
48.229.167.56	Find precise map location of 48.229.167.56
110.229.236.19	Find precise map location of 110.229.236.19

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