104.81.221 is a class C of IPs

Sample IPs from the class C 104.81.221

104.81.221.22	View precise location of 104.81.221.22 on the map!
104.81.221.37	View precise location of 104.81.221.37 on the map!
104.81.221.39	View precise location of 104.81.221.39 on the map!
104.81.221.255	View precise location of 104.81.221.255 on the map!
104.81.221.223	View precise location of 104.81.221.223 on the map!
104.81.221.139	View precise location of 104.81.221.139 on the map!
104.81.221.96	View precise location of 104.81.221.96 on the map!
104.81.221.136	View precise location of 104.81.221.136 on the map!
104.81.221.219	View precise location of 104.81.221.219 on the map!
104.81.221.187	View precise location of 104.81.221.187 on the map!
104.81.221.39	View precise location of 104.81.221.39 on the map!

10 Random IPs

123.46.100.95	Find precise map location of 123.46.100.95
118.242.16.53	Find precise map location of 118.242.16.53
22.87.248.235	Find precise map location of 22.87.248.235
166.229.109.182	Find precise map location of 166.229.109.182
232.76.238.66	Find precise map location of 232.76.238.66
35.144.169.131	Find precise map location of 35.144.169.131
43.236.123.156	Find precise map location of 43.236.123.156
159.148.60.72	Find precise map location of 159.148.60.72
100.189.186.218	Find precise map location of 100.189.186.218
243.98.173.162	Find precise map location of 243.98.173.162
214.126.20.182	Find precise map location of 214.126.20.182

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