221.12.216 is a class C of IPs

Sample IPs from the class C 221.12.216

221.12.216.166	View precise location of 221.12.216.166 on the map!
221.12.216.92	View precise location of 221.12.216.92 on the map!
221.12.216.31	View precise location of 221.12.216.31 on the map!
221.12.216.134	View precise location of 221.12.216.134 on the map!
221.12.216.235	View precise location of 221.12.216.235 on the map!
221.12.216.24	View precise location of 221.12.216.24 on the map!
221.12.216.226	View precise location of 221.12.216.226 on the map!
221.12.216.189	View precise location of 221.12.216.189 on the map!
221.12.216.139	View precise location of 221.12.216.139 on the map!
221.12.216.226	View precise location of 221.12.216.226 on the map!
221.12.216.112	View precise location of 221.12.216.112 on the map!

10 Random IPs

111.105.19.204	Find precise map location of 111.105.19.204
215.15.152.42	Find precise map location of 215.15.152.42
180.145.35.96	Find precise map location of 180.145.35.96
97.2.175.84	Find precise map location of 97.2.175.84
76.181.230.180	Find precise map location of 76.181.230.180
240.22.127.60	Find precise map location of 240.22.127.60
54.173.241.5	Find precise map location of 54.173.241.5
67.130.84.248	Find precise map location of 67.130.84.248
173.12.35.133	Find precise map location of 173.12.35.133
187.49.240.223	Find precise map location of 187.49.240.223
54.132.111.225	Find precise map location of 54.132.111.225

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