172.151.212 is a class C of IPs

Sample IPs from the class C 172.151.212

172.151.212.202	View precise location of 172.151.212.202 on the map!
172.151.212.17	View precise location of 172.151.212.17 on the map!
172.151.212.93	View precise location of 172.151.212.93 on the map!
172.151.212.89	View precise location of 172.151.212.89 on the map!
172.151.212.55	View precise location of 172.151.212.55 on the map!
172.151.212.179	View precise location of 172.151.212.179 on the map!
172.151.212.255	View precise location of 172.151.212.255 on the map!
172.151.212.114	View precise location of 172.151.212.114 on the map!
172.151.212.7	View precise location of 172.151.212.7 on the map!
172.151.212.49	View precise location of 172.151.212.49 on the map!
172.151.212.212	View precise location of 172.151.212.212 on the map!

10 Random IPs

84.76.137.77	Find precise map location of 84.76.137.77
136.231.41.41	Find precise map location of 136.231.41.41
64.94.185.188	Find precise map location of 64.94.185.188
21.216.215.190	Find precise map location of 21.216.215.190
49.158.13.9	Find precise map location of 49.158.13.9
82.137.55.255	Find precise map location of 82.137.55.255
49.57.205.62	Find precise map location of 49.57.205.62
128.140.196.93	Find precise map location of 128.140.196.93
39.223.250.57	Find precise map location of 39.223.250.57
42.217.15.31	Find precise map location of 42.217.15.31
183.244.107.123	Find precise map location of 183.244.107.123

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