183.28.56 is a class C of IPs

Sample IPs from the class C 183.28.56

183.28.56.222	View precise location of 183.28.56.222 on the map!
183.28.56.233	View precise location of 183.28.56.233 on the map!
183.28.56.199	View precise location of 183.28.56.199 on the map!
183.28.56.83	View precise location of 183.28.56.83 on the map!
183.28.56.206	View precise location of 183.28.56.206 on the map!
183.28.56.104	View precise location of 183.28.56.104 on the map!
183.28.56.88	View precise location of 183.28.56.88 on the map!
183.28.56.90	View precise location of 183.28.56.90 on the map!
183.28.56.106	View precise location of 183.28.56.106 on the map!
183.28.56.211	View precise location of 183.28.56.211 on the map!
183.28.56.41	View precise location of 183.28.56.41 on the map!

10 Random IPs

91.117.72.203	Find precise map location of 91.117.72.203
175.238.106.65	Find precise map location of 175.238.106.65
196.208.210.16	Find precise map location of 196.208.210.16
163.239.235.54	Find precise map location of 163.239.235.54
159.243.202.5	Find precise map location of 159.243.202.5
221.237.7.54	Find precise map location of 221.237.7.54
166.174.155.227	Find precise map location of 166.174.155.227
70.191.186.54	Find precise map location of 70.191.186.54
214.114.242.118	Find precise map location of 214.114.242.118
99.237.165.191	Find precise map location of 99.237.165.191
193.73.35.33	Find precise map location of 193.73.35.33

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