243.21.207 is a class C of IPs

Sample IPs from the class C 243.21.207

243.21.207.2	View precise location of 243.21.207.2 on the map!
243.21.207.254	View precise location of 243.21.207.254 on the map!
243.21.207.11	View precise location of 243.21.207.11 on the map!
243.21.207.197	View precise location of 243.21.207.197 on the map!
243.21.207.181	View precise location of 243.21.207.181 on the map!
243.21.207.169	View precise location of 243.21.207.169 on the map!
243.21.207.94	View precise location of 243.21.207.94 on the map!
243.21.207.102	View precise location of 243.21.207.102 on the map!
243.21.207.35	View precise location of 243.21.207.35 on the map!
243.21.207.31	View precise location of 243.21.207.31 on the map!
243.21.207.63	View precise location of 243.21.207.63 on the map!

10 Random IPs

177.185.62.85	Find precise map location of 177.185.62.85
82.222.116.197	Find precise map location of 82.222.116.197
39.8.71.137	Find precise map location of 39.8.71.137
93.21.107.99	Find precise map location of 93.21.107.99
91.71.181.170	Find precise map location of 91.71.181.170
115.179.74.83	Find precise map location of 115.179.74.83
229.137.10.254	Find precise map location of 229.137.10.254
114.147.124.17	Find precise map location of 114.147.124.17
77.17.152.211	Find precise map location of 77.17.152.211
169.226.187.223	Find precise map location of 169.226.187.223
5.233.192.213	Find precise map location of 5.233.192.213

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