221.228.120 is a class C of IPs

Sample IPs from the class C 221.228.120

221.228.120.208	View precise location of 221.228.120.208 on the map!
221.228.120.247	View precise location of 221.228.120.247 on the map!
221.228.120.106	View precise location of 221.228.120.106 on the map!
221.228.120.86	View precise location of 221.228.120.86 on the map!
221.228.120.195	View precise location of 221.228.120.195 on the map!
221.228.120.167	View precise location of 221.228.120.167 on the map!
221.228.120.50	View precise location of 221.228.120.50 on the map!
221.228.120.33	View precise location of 221.228.120.33 on the map!
221.228.120.6	View precise location of 221.228.120.6 on the map!
221.228.120.130	View precise location of 221.228.120.130 on the map!
221.228.120.226	View precise location of 221.228.120.226 on the map!

10 Random IPs

226.149.184.30	Find precise map location of 226.149.184.30
49.130.30.123	Find precise map location of 49.130.30.123
30.213.1.144	Find precise map location of 30.213.1.144
107.130.180.26	Find precise map location of 107.130.180.26
170.102.209.76	Find precise map location of 170.102.209.76
77.145.189.24	Find precise map location of 77.145.189.24
67.162.112.109	Find precise map location of 67.162.112.109
61.121.146.85	Find precise map location of 61.121.146.85
152.52.251.226	Find precise map location of 152.52.251.226
38.117.74.37	Find precise map location of 38.117.74.37
22.254.184.19	Find precise map location of 22.254.184.19

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