223.66.55 is a class C of IPs

Sample IPs from the class C 223.66.55

223.66.55.172	View precise location of 223.66.55.172 on the map!
223.66.55.180	View precise location of 223.66.55.180 on the map!
223.66.55.137	View precise location of 223.66.55.137 on the map!
223.66.55.114	View precise location of 223.66.55.114 on the map!
223.66.55.80	View precise location of 223.66.55.80 on the map!
223.66.55.224	View precise location of 223.66.55.224 on the map!
223.66.55.28	View precise location of 223.66.55.28 on the map!
223.66.55.2	View precise location of 223.66.55.2 on the map!
223.66.55.64	View precise location of 223.66.55.64 on the map!
223.66.55.74	View precise location of 223.66.55.74 on the map!
223.66.55.64	View precise location of 223.66.55.64 on the map!

10 Random IPs

191.42.191.75	Find precise map location of 191.42.191.75
132.96.8.96	Find precise map location of 132.96.8.96
54.165.151.176	Find precise map location of 54.165.151.176
93.137.103.144	Find precise map location of 93.137.103.144
85.126.215.216	Find precise map location of 85.126.215.216
44.5.156.105	Find precise map location of 44.5.156.105
71.36.102.97	Find precise map location of 71.36.102.97
221.215.181.234	Find precise map location of 221.215.181.234
210.52.216.43	Find precise map location of 210.52.216.43
181.59.228.182	Find precise map location of 181.59.228.182
36.4.1.162	Find precise map location of 36.4.1.162

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