151.187.42 is a class C of IPs

Sample IPs from the class C 151.187.42

151.187.42.12	View precise location of 151.187.42.12 on the map!
151.187.42.254	View precise location of 151.187.42.254 on the map!
151.187.42.137	View precise location of 151.187.42.137 on the map!
151.187.42.60	View precise location of 151.187.42.60 on the map!
151.187.42.242	View precise location of 151.187.42.242 on the map!
151.187.42.196	View precise location of 151.187.42.196 on the map!
151.187.42.192	View precise location of 151.187.42.192 on the map!
151.187.42.121	View precise location of 151.187.42.121 on the map!
151.187.42.98	View precise location of 151.187.42.98 on the map!
151.187.42.171	View precise location of 151.187.42.171 on the map!
151.187.42.102	View precise location of 151.187.42.102 on the map!

10 Random IPs

181.78.217.135	Find precise map location of 181.78.217.135
230.166.239.121	Find precise map location of 230.166.239.121
66.247.90.46	Find precise map location of 66.247.90.46
59.145.193.2	Find precise map location of 59.145.193.2
157.197.121.36	Find precise map location of 157.197.121.36
150.168.69.211	Find precise map location of 150.168.69.211
207.227.239.136	Find precise map location of 207.227.239.136
240.44.111.192	Find precise map location of 240.44.111.192
113.18.104.42	Find precise map location of 113.18.104.42
113.142.130.20	Find precise map location of 113.142.130.20
108.112.63.74	Find precise map location of 108.112.63.74

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