221.144.193 is a class C of IPs

Sample IPs from the class C 221.144.193

221.144.193.252	View precise location of 221.144.193.252 on the map!
221.144.193.156	View precise location of 221.144.193.156 on the map!
221.144.193.90	View precise location of 221.144.193.90 on the map!
221.144.193.238	View precise location of 221.144.193.238 on the map!
221.144.193.12	View precise location of 221.144.193.12 on the map!
221.144.193.98	View precise location of 221.144.193.98 on the map!
221.144.193.55	View precise location of 221.144.193.55 on the map!
221.144.193.201	View precise location of 221.144.193.201 on the map!
221.144.193.128	View precise location of 221.144.193.128 on the map!
221.144.193.187	View precise location of 221.144.193.187 on the map!
221.144.193.149	View precise location of 221.144.193.149 on the map!

10 Random IPs

145.209.1.61	Find precise map location of 145.209.1.61
211.84.213.241	Find precise map location of 211.84.213.241
193.34.92.87	Find precise map location of 193.34.92.87
162.54.117.93	Find precise map location of 162.54.117.93
24.108.86.231	Find precise map location of 24.108.86.231
88.28.125.20	Find precise map location of 88.28.125.20
202.90.21.228	Find precise map location of 202.90.21.228
114.253.112.9	Find precise map location of 114.253.112.9
237.54.239.33	Find precise map location of 237.54.239.33
82.42.93.113	Find precise map location of 82.42.93.113
157.34.40.75	Find precise map location of 157.34.40.75

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