21.189.99 is a class C of IPs

Sample IPs from the class C 21.189.99

21.189.99.114	View precise location of 21.189.99.114 on the map!
21.189.99.25	View precise location of 21.189.99.25 on the map!
21.189.99.62	View precise location of 21.189.99.62 on the map!
21.189.99.207	View precise location of 21.189.99.207 on the map!
21.189.99.39	View precise location of 21.189.99.39 on the map!
21.189.99.80	View precise location of 21.189.99.80 on the map!
21.189.99.132	View precise location of 21.189.99.132 on the map!
21.189.99.42	View precise location of 21.189.99.42 on the map!
21.189.99.217	View precise location of 21.189.99.217 on the map!
21.189.99.154	View precise location of 21.189.99.154 on the map!
21.189.99.20	View precise location of 21.189.99.20 on the map!

10 Random IPs

225.39.140.234	Find precise map location of 225.39.140.234
5.74.13.14	Find precise map location of 5.74.13.14
7.121.6.217	Find precise map location of 7.121.6.217
24.252.27.110	Find precise map location of 24.252.27.110
243.53.218.204	Find precise map location of 243.53.218.204
91.254.4.52	Find precise map location of 91.254.4.52
247.117.248.139	Find precise map location of 247.117.248.139
236.26.111.80	Find precise map location of 236.26.111.80
102.89.50.11	Find precise map location of 102.89.50.11
136.123.20.173	Find precise map location of 136.123.20.173
218.96.19.178	Find precise map location of 218.96.19.178

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