28.72.136 is a class C of IPs

Sample IPs from the class C 28.72.136

28.72.136.62	View precise location of 28.72.136.62 on the map!
28.72.136.39	View precise location of 28.72.136.39 on the map!
28.72.136.55	View precise location of 28.72.136.55 on the map!
28.72.136.21	View precise location of 28.72.136.21 on the map!
28.72.136.18	View precise location of 28.72.136.18 on the map!
28.72.136.144	View precise location of 28.72.136.144 on the map!
28.72.136.9	View precise location of 28.72.136.9 on the map!
28.72.136.161	View precise location of 28.72.136.161 on the map!
28.72.136.147	View precise location of 28.72.136.147 on the map!
28.72.136.252	View precise location of 28.72.136.252 on the map!
28.72.136.159	View precise location of 28.72.136.159 on the map!

10 Random IPs

171.70.218.4	Find precise map location of 171.70.218.4
145.206.253.85	Find precise map location of 145.206.253.85
184.176.113.223	Find precise map location of 184.176.113.223
63.139.155.160	Find precise map location of 63.139.155.160
153.243.156.147	Find precise map location of 153.243.156.147
13.219.6.24	Find precise map location of 13.219.6.24
200.77.150.123	Find precise map location of 200.77.150.123
143.78.21.91	Find precise map location of 143.78.21.91
149.121.162.246	Find precise map location of 149.121.162.246
227.138.118.44	Find precise map location of 227.138.118.44
109.140.235.156	Find precise map location of 109.140.235.156

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