56.66.148 is a class C of IPs

Sample IPs from the class C 56.66.148

56.66.148.165	View precise location of 56.66.148.165 on the map!
56.66.148.22	View precise location of 56.66.148.22 on the map!
56.66.148.44	View precise location of 56.66.148.44 on the map!
56.66.148.223	View precise location of 56.66.148.223 on the map!
56.66.148.120	View precise location of 56.66.148.120 on the map!
56.66.148.40	View precise location of 56.66.148.40 on the map!
56.66.148.2	View precise location of 56.66.148.2 on the map!
56.66.148.71	View precise location of 56.66.148.71 on the map!
56.66.148.129	View precise location of 56.66.148.129 on the map!
56.66.148.23	View precise location of 56.66.148.23 on the map!
56.66.148.15	View precise location of 56.66.148.15 on the map!

10 Random IPs

208.147.110.78	Find precise map location of 208.147.110.78
149.175.31.147	Find precise map location of 149.175.31.147
98.67.33.193	Find precise map location of 98.67.33.193
214.144.178.82	Find precise map location of 214.144.178.82
20.142.60.105	Find precise map location of 20.142.60.105
130.186.10.226	Find precise map location of 130.186.10.226
103.59.192.28	Find precise map location of 103.59.192.28
224.44.46.211	Find precise map location of 224.44.46.211
204.38.123.84	Find precise map location of 204.38.123.84
55.134.106.20	Find precise map location of 55.134.106.20
152.17.60.121	Find precise map location of 152.17.60.121

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