221.73.236 is a class C of IPs

Sample IPs from the class C 221.73.236

221.73.236.64	View precise location of 221.73.236.64 on the map!
221.73.236.233	View precise location of 221.73.236.233 on the map!
221.73.236.47	View precise location of 221.73.236.47 on the map!
221.73.236.147	View precise location of 221.73.236.147 on the map!
221.73.236.16	View precise location of 221.73.236.16 on the map!
221.73.236.15	View precise location of 221.73.236.15 on the map!
221.73.236.243	View precise location of 221.73.236.243 on the map!
221.73.236.201	View precise location of 221.73.236.201 on the map!
221.73.236.116	View precise location of 221.73.236.116 on the map!
221.73.236.43	View precise location of 221.73.236.43 on the map!
221.73.236.76	View precise location of 221.73.236.76 on the map!

10 Random IPs

193.130.235.253	Find precise map location of 193.130.235.253
230.229.225.237	Find precise map location of 230.229.225.237
32.4.190.130	Find precise map location of 32.4.190.130
191.240.198.109	Find precise map location of 191.240.198.109
30.104.127.59	Find precise map location of 30.104.127.59
187.82.243.246	Find precise map location of 187.82.243.246
226.77.162.115	Find precise map location of 226.77.162.115
129.148.90.165	Find precise map location of 129.148.90.165
57.140.50.119	Find precise map location of 57.140.50.119
76.44.56.226	Find precise map location of 76.44.56.226
102.129.180.255	Find precise map location of 102.129.180.255

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