231.99.53 is a class C of IPs

Sample IPs from the class C 231.99.53

231.99.53.62	View precise location of 231.99.53.62 on the map!
231.99.53.135	View precise location of 231.99.53.135 on the map!
231.99.53.168	View precise location of 231.99.53.168 on the map!
231.99.53.130	View precise location of 231.99.53.130 on the map!
231.99.53.34	View precise location of 231.99.53.34 on the map!
231.99.53.140	View precise location of 231.99.53.140 on the map!
231.99.53.139	View precise location of 231.99.53.139 on the map!
231.99.53.4	View precise location of 231.99.53.4 on the map!
231.99.53.60	View precise location of 231.99.53.60 on the map!
231.99.53.31	View precise location of 231.99.53.31 on the map!
231.99.53.217	View precise location of 231.99.53.217 on the map!

10 Random IPs

218.137.248.250	Find precise map location of 218.137.248.250
48.132.65.199	Find precise map location of 48.132.65.199
18.56.125.71	Find precise map location of 18.56.125.71
34.91.68.104	Find precise map location of 34.91.68.104
246.226.121.83	Find precise map location of 246.226.121.83
111.101.104.28	Find precise map location of 111.101.104.28
33.23.188.33	Find precise map location of 33.23.188.33
27.165.26.25	Find precise map location of 27.165.26.25
214.227.249.124	Find precise map location of 214.227.249.124
234.231.3.157	Find precise map location of 234.231.3.157
4.15.97.121	Find precise map location of 4.15.97.121

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