131.221.80 is a class C of IPs

Sample IPs from the class C 131.221.80

131.221.80.143	View precise location of 131.221.80.143 on the map!
131.221.80.53	View precise location of 131.221.80.53 on the map!
131.221.80.12	View precise location of 131.221.80.12 on the map!
131.221.80.216	View precise location of 131.221.80.216 on the map!
131.221.80.94	View precise location of 131.221.80.94 on the map!
131.221.80.215	View precise location of 131.221.80.215 on the map!
131.221.80.82	View precise location of 131.221.80.82 on the map!
131.221.80.249	View precise location of 131.221.80.249 on the map!
131.221.80.49	View precise location of 131.221.80.49 on the map!
131.221.80.111	View precise location of 131.221.80.111 on the map!
131.221.80.138	View precise location of 131.221.80.138 on the map!

10 Random IPs

100.225.146.59	Find precise map location of 100.225.146.59
178.182.59.191	Find precise map location of 178.182.59.191
162.212.230.87	Find precise map location of 162.212.230.87
122.22.231.81	Find precise map location of 122.22.231.81
30.135.116.23	Find precise map location of 30.135.116.23
132.47.216.87	Find precise map location of 132.47.216.87
79.110.75.100	Find precise map location of 79.110.75.100
54.135.90.9	Find precise map location of 54.135.90.9
158.14.254.171	Find precise map location of 158.14.254.171
192.68.237.59	Find precise map location of 192.68.237.59
49.187.183.220	Find precise map location of 49.187.183.220

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