19.66.187 is a class C of IPs

Sample IPs from the class C 19.66.187

19.66.187.140	View precise location of 19.66.187.140 on the map!
19.66.187.145	View precise location of 19.66.187.145 on the map!
19.66.187.43	View precise location of 19.66.187.43 on the map!
19.66.187.133	View precise location of 19.66.187.133 on the map!
19.66.187.108	View precise location of 19.66.187.108 on the map!
19.66.187.68	View precise location of 19.66.187.68 on the map!
19.66.187.205	View precise location of 19.66.187.205 on the map!
19.66.187.4	View precise location of 19.66.187.4 on the map!
19.66.187.200	View precise location of 19.66.187.200 on the map!
19.66.187.77	View precise location of 19.66.187.77 on the map!
19.66.187.65	View precise location of 19.66.187.65 on the map!

10 Random IPs

2.62.85.252	Find precise map location of 2.62.85.252
45.244.101.134	Find precise map location of 45.244.101.134
49.94.61.89	Find precise map location of 49.94.61.89
178.203.207.216	Find precise map location of 178.203.207.216
157.41.125.243	Find precise map location of 157.41.125.243
240.162.166.255	Find precise map location of 240.162.166.255
158.191.97.150	Find precise map location of 158.191.97.150
116.41.49.39	Find precise map location of 116.41.49.39
240.27.38.24	Find precise map location of 240.27.38.24
40.35.64.193	Find precise map location of 40.35.64.193
225.49.240.73	Find precise map location of 225.49.240.73

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