216.12.172 is a class C of IPs

Sample IPs from the class C 216.12.172

216.12.172.59	View precise location of 216.12.172.59 on the map!
216.12.172.34	View precise location of 216.12.172.34 on the map!
216.12.172.44	View precise location of 216.12.172.44 on the map!
216.12.172.137	View precise location of 216.12.172.137 on the map!
216.12.172.159	View precise location of 216.12.172.159 on the map!
216.12.172.77	View precise location of 216.12.172.77 on the map!
216.12.172.85	View precise location of 216.12.172.85 on the map!
216.12.172.220	View precise location of 216.12.172.220 on the map!
216.12.172.215	View precise location of 216.12.172.215 on the map!
216.12.172.98	View precise location of 216.12.172.98 on the map!
216.12.172.251	View precise location of 216.12.172.251 on the map!

10 Random IPs

201.9.191.17	Find precise map location of 201.9.191.17
167.186.216.133	Find precise map location of 167.186.216.133
139.165.151.148	Find precise map location of 139.165.151.148
111.16.79.101	Find precise map location of 111.16.79.101
101.188.42.38	Find precise map location of 101.188.42.38
174.215.195.207	Find precise map location of 174.215.195.207
246.238.125.124	Find precise map location of 246.238.125.124
159.223.249.98	Find precise map location of 159.223.249.98
175.8.54.250	Find precise map location of 175.8.54.250
143.19.183.100	Find precise map location of 143.19.183.100
185.250.1.36	Find precise map location of 185.250.1.36

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