66.91.146 is a class C of IPs

Sample IPs from the class C 66.91.146

66.91.146.197	View precise location of 66.91.146.197 on the map!
66.91.146.109	View precise location of 66.91.146.109 on the map!
66.91.146.210	View precise location of 66.91.146.210 on the map!
66.91.146.25	View precise location of 66.91.146.25 on the map!
66.91.146.109	View precise location of 66.91.146.109 on the map!
66.91.146.168	View precise location of 66.91.146.168 on the map!
66.91.146.98	View precise location of 66.91.146.98 on the map!
66.91.146.105	View precise location of 66.91.146.105 on the map!
66.91.146.240	View precise location of 66.91.146.240 on the map!
66.91.146.184	View precise location of 66.91.146.184 on the map!
66.91.146.233	View precise location of 66.91.146.233 on the map!

10 Random IPs

20.69.65.116	Find precise map location of 20.69.65.116
99.193.196.234	Find precise map location of 99.193.196.234
36.153.65.155	Find precise map location of 36.153.65.155
239.81.181.10	Find precise map location of 239.81.181.10
156.72.148.46	Find precise map location of 156.72.148.46
161.78.229.43	Find precise map location of 161.78.229.43
30.124.180.110	Find precise map location of 30.124.180.110
96.44.243.85	Find precise map location of 96.44.243.85
26.167.93.255	Find precise map location of 26.167.93.255
33.169.6.184	Find precise map location of 33.169.6.184
143.8.14.254	Find precise map location of 143.8.14.254

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