66.181.6 is a class C of IPs

Sample IPs from the class C 66.181.6

66.181.6.213	View precise location of 66.181.6.213 on the map!
66.181.6.77	View precise location of 66.181.6.77 on the map!
66.181.6.206	View precise location of 66.181.6.206 on the map!
66.181.6.36	View precise location of 66.181.6.36 on the map!
66.181.6.32	View precise location of 66.181.6.32 on the map!
66.181.6.222	View precise location of 66.181.6.222 on the map!
66.181.6.49	View precise location of 66.181.6.49 on the map!
66.181.6.210	View precise location of 66.181.6.210 on the map!
66.181.6.216	View precise location of 66.181.6.216 on the map!
66.181.6.119	View precise location of 66.181.6.119 on the map!
66.181.6.237	View precise location of 66.181.6.237 on the map!

10 Random IPs

20.26.208.187	Find precise map location of 20.26.208.187
43.241.136.206	Find precise map location of 43.241.136.206
206.215.238.147	Find precise map location of 206.215.238.147
57.154.71.155	Find precise map location of 57.154.71.155
137.111.55.87	Find precise map location of 137.111.55.87
245.26.111.55	Find precise map location of 245.26.111.55
103.197.240.62	Find precise map location of 103.197.240.62
99.70.97.221	Find precise map location of 99.70.97.221
145.6.199.126	Find precise map location of 145.6.199.126
174.148.116.1	Find precise map location of 174.148.116.1
76.103.146.210	Find precise map location of 76.103.146.210

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