201.57.221 is a class C of IPs

Sample IPs from the class C 201.57.221

201.57.221.200	View precise location of 201.57.221.200 on the map!
201.57.221.132	View precise location of 201.57.221.132 on the map!
201.57.221.201	View precise location of 201.57.221.201 on the map!
201.57.221.98	View precise location of 201.57.221.98 on the map!
201.57.221.206	View precise location of 201.57.221.206 on the map!
201.57.221.69	View precise location of 201.57.221.69 on the map!
201.57.221.30	View precise location of 201.57.221.30 on the map!
201.57.221.73	View precise location of 201.57.221.73 on the map!
201.57.221.85	View precise location of 201.57.221.85 on the map!
201.57.221.100	View precise location of 201.57.221.100 on the map!
201.57.221.155	View precise location of 201.57.221.155 on the map!

10 Random IPs

103.104.88.23	Find precise map location of 103.104.88.23
198.26.138.161	Find precise map location of 198.26.138.161
112.34.113.137	Find precise map location of 112.34.113.137
230.5.201.217	Find precise map location of 230.5.201.217
64.30.208.178	Find precise map location of 64.30.208.178
82.135.96.84	Find precise map location of 82.135.96.84
106.15.124.247	Find precise map location of 106.15.124.247
151.102.47.147	Find precise map location of 151.102.47.147
167.156.68.14	Find precise map location of 167.156.68.14
132.41.33.73	Find precise map location of 132.41.33.73
21.196.23.93	Find precise map location of 21.196.23.93

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