231.221.206 is a class C of IPs

Sample IPs from the class C 231.221.206

231.221.206.201	View precise location of 231.221.206.201 on the map!
231.221.206.143	View precise location of 231.221.206.143 on the map!
231.221.206.7	View precise location of 231.221.206.7 on the map!
231.221.206.188	View precise location of 231.221.206.188 on the map!
231.221.206.16	View precise location of 231.221.206.16 on the map!
231.221.206.81	View precise location of 231.221.206.81 on the map!
231.221.206.57	View precise location of 231.221.206.57 on the map!
231.221.206.45	View precise location of 231.221.206.45 on the map!
231.221.206.165	View precise location of 231.221.206.165 on the map!
231.221.206.237	View precise location of 231.221.206.237 on the map!
231.221.206.81	View precise location of 231.221.206.81 on the map!

10 Random IPs

67.83.66.188	Find precise map location of 67.83.66.188
180.214.129.62	Find precise map location of 180.214.129.62
232.32.144.243	Find precise map location of 232.32.144.243
132.43.35.13	Find precise map location of 132.43.35.13
83.29.19.249	Find precise map location of 83.29.19.249
67.234.205.46	Find precise map location of 67.234.205.46
176.188.1.140	Find precise map location of 176.188.1.140
127.92.57.225	Find precise map location of 127.92.57.225
57.112.103.235	Find precise map location of 57.112.103.235
229.20.111.41	Find precise map location of 229.20.111.41
242.60.52.109	Find precise map location of 242.60.52.109

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