248.28.81 is a class C of IPs

Sample IPs from the class C 248.28.81

248.28.81.136	View precise location of 248.28.81.136 on the map!
248.28.81.219	View precise location of 248.28.81.219 on the map!
248.28.81.56	View precise location of 248.28.81.56 on the map!
248.28.81.170	View precise location of 248.28.81.170 on the map!
248.28.81.223	View precise location of 248.28.81.223 on the map!
248.28.81.110	View precise location of 248.28.81.110 on the map!
248.28.81.238	View precise location of 248.28.81.238 on the map!
248.28.81.41	View precise location of 248.28.81.41 on the map!
248.28.81.7	View precise location of 248.28.81.7 on the map!
248.28.81.121	View precise location of 248.28.81.121 on the map!
248.28.81.89	View precise location of 248.28.81.89 on the map!

10 Random IPs

54.101.54.109	Find precise map location of 54.101.54.109
54.85.112.227	Find precise map location of 54.85.112.227
85.27.111.102	Find precise map location of 85.27.111.102
176.33.182.162	Find precise map location of 176.33.182.162
85.53.126.246	Find precise map location of 85.53.126.246
73.15.162.51	Find precise map location of 73.15.162.51
97.92.239.252	Find precise map location of 97.92.239.252
200.222.120.205	Find precise map location of 200.222.120.205
43.99.70.173	Find precise map location of 43.99.70.173
109.102.185.140	Find precise map location of 109.102.185.140
129.227.216.158	Find precise map location of 129.227.216.158

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