197.66.166 is a class C of IPs

Sample IPs from the class C 197.66.166

197.66.166.6	View precise location of 197.66.166.6 on the map!
197.66.166.215	View precise location of 197.66.166.215 on the map!
197.66.166.110	View precise location of 197.66.166.110 on the map!
197.66.166.74	View precise location of 197.66.166.74 on the map!
197.66.166.233	View precise location of 197.66.166.233 on the map!
197.66.166.115	View precise location of 197.66.166.115 on the map!
197.66.166.172	View precise location of 197.66.166.172 on the map!
197.66.166.242	View precise location of 197.66.166.242 on the map!
197.66.166.113	View precise location of 197.66.166.113 on the map!
197.66.166.41	View precise location of 197.66.166.41 on the map!
197.66.166.86	View precise location of 197.66.166.86 on the map!

10 Random IPs

132.235.106.101	Find precise map location of 132.235.106.101
255.250.212.220	Find precise map location of 255.250.212.220
110.92.43.46	Find precise map location of 110.92.43.46
175.7.112.167	Find precise map location of 175.7.112.167
3.84.83.112	Find precise map location of 3.84.83.112
191.246.9.88	Find precise map location of 191.246.9.88
109.203.195.60	Find precise map location of 109.203.195.60
130.186.89.76	Find precise map location of 130.186.89.76
196.195.244.36	Find precise map location of 196.195.244.36
165.240.46.44	Find precise map location of 165.240.46.44
194.16.255.24	Find precise map location of 194.16.255.24

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