28.67.21 is a class C of IPs

Sample IPs from the class C 28.67.21

28.67.21.134	View precise location of 28.67.21.134 on the map!
28.67.21.197	View precise location of 28.67.21.197 on the map!
28.67.21.211	View precise location of 28.67.21.211 on the map!
28.67.21.128	View precise location of 28.67.21.128 on the map!
28.67.21.214	View precise location of 28.67.21.214 on the map!
28.67.21.67	View precise location of 28.67.21.67 on the map!
28.67.21.33	View precise location of 28.67.21.33 on the map!
28.67.21.177	View precise location of 28.67.21.177 on the map!
28.67.21.2	View precise location of 28.67.21.2 on the map!
28.67.21.104	View precise location of 28.67.21.104 on the map!
28.67.21.164	View precise location of 28.67.21.164 on the map!

10 Random IPs

249.145.201.247	Find precise map location of 249.145.201.247
144.150.9.103	Find precise map location of 144.150.9.103
251.106.132.3	Find precise map location of 251.106.132.3
209.16.36.149	Find precise map location of 209.16.36.149
194.229.9.31	Find precise map location of 194.229.9.31
151.46.157.116	Find precise map location of 151.46.157.116
162.168.72.221	Find precise map location of 162.168.72.221
160.168.17.14	Find precise map location of 160.168.17.14
98.76.46.209	Find precise map location of 98.76.46.209
236.59.99.117	Find precise map location of 236.59.99.117
120.101.64.218	Find precise map location of 120.101.64.218

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