156.15.42 is a class C of IPs

Sample IPs from the class C 156.15.42

156.15.42.6	View precise location of 156.15.42.6 on the map!
156.15.42.221	View precise location of 156.15.42.221 on the map!
156.15.42.238	View precise location of 156.15.42.238 on the map!
156.15.42.89	View precise location of 156.15.42.89 on the map!
156.15.42.151	View precise location of 156.15.42.151 on the map!
156.15.42.163	View precise location of 156.15.42.163 on the map!
156.15.42.43	View precise location of 156.15.42.43 on the map!
156.15.42.39	View precise location of 156.15.42.39 on the map!
156.15.42.184	View precise location of 156.15.42.184 on the map!
156.15.42.246	View precise location of 156.15.42.246 on the map!
156.15.42.126	View precise location of 156.15.42.126 on the map!

10 Random IPs

166.41.253.27	Find precise map location of 166.41.253.27
201.46.174.200	Find precise map location of 201.46.174.200
3.77.150.88	Find precise map location of 3.77.150.88
164.130.36.118	Find precise map location of 164.130.36.118
236.96.223.224	Find precise map location of 236.96.223.224
242.231.199.245	Find precise map location of 242.231.199.245
187.198.98.131	Find precise map location of 187.198.98.131
118.244.182.50	Find precise map location of 118.244.182.50
252.52.180.113	Find precise map location of 252.52.180.113
134.149.245.50	Find precise map location of 134.149.245.50
176.252.157.29	Find precise map location of 176.252.157.29

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