231.21.46 is a class C of IPs

Sample IPs from the class C 231.21.46

231.21.46.150	View precise location of 231.21.46.150 on the map!
231.21.46.209	View precise location of 231.21.46.209 on the map!
231.21.46.221	View precise location of 231.21.46.221 on the map!
231.21.46.9	View precise location of 231.21.46.9 on the map!
231.21.46.190	View precise location of 231.21.46.190 on the map!
231.21.46.102	View precise location of 231.21.46.102 on the map!
231.21.46.86	View precise location of 231.21.46.86 on the map!
231.21.46.246	View precise location of 231.21.46.246 on the map!
231.21.46.104	View precise location of 231.21.46.104 on the map!
231.21.46.122	View precise location of 231.21.46.122 on the map!
231.21.46.44	View precise location of 231.21.46.44 on the map!

10 Random IPs

196.225.117.115	Find precise map location of 196.225.117.115
144.103.134.104	Find precise map location of 144.103.134.104
237.71.22.25	Find precise map location of 237.71.22.25
186.41.142.3	Find precise map location of 186.41.142.3
205.37.64.13	Find precise map location of 205.37.64.13
252.1.16.234	Find precise map location of 252.1.16.234
109.147.131.167	Find precise map location of 109.147.131.167
21.50.105.216	Find precise map location of 21.50.105.216
113.129.123.194	Find precise map location of 113.129.123.194
87.246.192.210	Find precise map location of 87.246.192.210
31.191.36.83	Find precise map location of 31.191.36.83

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