77.83.221 is a class C of IPs

Sample IPs from the class C 77.83.221

77.83.221.122	View precise location of 77.83.221.122 on the map!
77.83.221.167	View precise location of 77.83.221.167 on the map!
77.83.221.23	View precise location of 77.83.221.23 on the map!
77.83.221.93	View precise location of 77.83.221.93 on the map!
77.83.221.168	View precise location of 77.83.221.168 on the map!
77.83.221.173	View precise location of 77.83.221.173 on the map!
77.83.221.81	View precise location of 77.83.221.81 on the map!
77.83.221.213	View precise location of 77.83.221.213 on the map!
77.83.221.37	View precise location of 77.83.221.37 on the map!
77.83.221.133	View precise location of 77.83.221.133 on the map!
77.83.221.161	View precise location of 77.83.221.161 on the map!

10 Random IPs

147.59.221.1	Find precise map location of 147.59.221.1
150.53.32.249	Find precise map location of 150.53.32.249
217.21.238.183	Find precise map location of 217.21.238.183
90.201.182.184	Find precise map location of 90.201.182.184
192.228.239.161	Find precise map location of 192.228.239.161
202.230.64.33	Find precise map location of 202.230.64.33
187.36.226.20	Find precise map location of 187.36.226.20
63.128.186.110	Find precise map location of 63.128.186.110
238.171.83.155	Find precise map location of 238.171.83.155
37.54.192.114	Find precise map location of 37.54.192.114
131.44.210.123	Find precise map location of 131.44.210.123

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