221.251.228 is a class C of IPs

Sample IPs from the class C 221.251.228

221.251.228.42	View precise location of 221.251.228.42 on the map!
221.251.228.110	View precise location of 221.251.228.110 on the map!
221.251.228.53	View precise location of 221.251.228.53 on the map!
221.251.228.114	View precise location of 221.251.228.114 on the map!
221.251.228.218	View precise location of 221.251.228.218 on the map!
221.251.228.13	View precise location of 221.251.228.13 on the map!
221.251.228.200	View precise location of 221.251.228.200 on the map!
221.251.228.44	View precise location of 221.251.228.44 on the map!
221.251.228.143	View precise location of 221.251.228.143 on the map!
221.251.228.255	View precise location of 221.251.228.255 on the map!
221.251.228.73	View precise location of 221.251.228.73 on the map!

10 Random IPs

159.225.229.149	Find precise map location of 159.225.229.149
171.146.34.102	Find precise map location of 171.146.34.102
193.152.236.106	Find precise map location of 193.152.236.106
146.65.190.119	Find precise map location of 146.65.190.119
100.157.146.247	Find precise map location of 100.157.146.247
153.152.221.81	Find precise map location of 153.152.221.81
8.199.244.215	Find precise map location of 8.199.244.215
35.190.140.30	Find precise map location of 35.190.140.30
255.175.159.27	Find precise map location of 255.175.159.27
202.100.97.67	Find precise map location of 202.100.97.67
177.126.44.152	Find precise map location of 177.126.44.152

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