243.57.106 is a class C of IPs

Sample IPs from the class C 243.57.106

243.57.106.99	View precise location of 243.57.106.99 on the map!
243.57.106.52	View precise location of 243.57.106.52 on the map!
243.57.106.115	View precise location of 243.57.106.115 on the map!
243.57.106.195	View precise location of 243.57.106.195 on the map!
243.57.106.12	View precise location of 243.57.106.12 on the map!
243.57.106.126	View precise location of 243.57.106.126 on the map!
243.57.106.247	View precise location of 243.57.106.247 on the map!
243.57.106.208	View precise location of 243.57.106.208 on the map!
243.57.106.17	View precise location of 243.57.106.17 on the map!
243.57.106.193	View precise location of 243.57.106.193 on the map!
243.57.106.200	View precise location of 243.57.106.200 on the map!

10 Random IPs

198.10.51.194	Find precise map location of 198.10.51.194
128.104.96.76	Find precise map location of 128.104.96.76
62.49.123.52	Find precise map location of 62.49.123.52
58.30.121.193	Find precise map location of 58.30.121.193
237.26.42.167	Find precise map location of 237.26.42.167
55.97.116.7	Find precise map location of 55.97.116.7
249.58.223.223	Find precise map location of 249.58.223.223
193.253.92.44	Find precise map location of 193.253.92.44
39.5.241.67	Find precise map location of 39.5.241.67
235.158.10.204	Find precise map location of 235.158.10.204
136.71.68.53	Find precise map location of 136.71.68.53

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