166.42.56 is a class C of IPs

Sample IPs from the class C 166.42.56

166.42.56.172	View precise location of 166.42.56.172 on the map!
166.42.56.234	View precise location of 166.42.56.234 on the map!
166.42.56.153	View precise location of 166.42.56.153 on the map!
166.42.56.118	View precise location of 166.42.56.118 on the map!
166.42.56.83	View precise location of 166.42.56.83 on the map!
166.42.56.80	View precise location of 166.42.56.80 on the map!
166.42.56.29	View precise location of 166.42.56.29 on the map!
166.42.56.167	View precise location of 166.42.56.167 on the map!
166.42.56.104	View precise location of 166.42.56.104 on the map!
166.42.56.242	View precise location of 166.42.56.242 on the map!
166.42.56.121	View precise location of 166.42.56.121 on the map!

10 Random IPs

231.34.45.201	Find precise map location of 231.34.45.201
31.82.141.64	Find precise map location of 31.82.141.64
56.234.168.77	Find precise map location of 56.234.168.77
47.237.138.132	Find precise map location of 47.237.138.132
75.43.149.169	Find precise map location of 75.43.149.169
245.147.174.19	Find precise map location of 245.147.174.19
238.150.168.29	Find precise map location of 238.150.168.29
201.111.37.112	Find precise map location of 201.111.37.112
132.29.101.174	Find precise map location of 132.29.101.174
185.158.145.6	Find precise map location of 185.158.145.6
150.254.87.228	Find precise map location of 150.254.87.228

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