156.13.255 is a class C of IPs

Sample IPs from the class C 156.13.255

156.13.255.217	View precise location of 156.13.255.217 on the map!
156.13.255.210	View precise location of 156.13.255.210 on the map!
156.13.255.145	View precise location of 156.13.255.145 on the map!
156.13.255.185	View precise location of 156.13.255.185 on the map!
156.13.255.107	View precise location of 156.13.255.107 on the map!
156.13.255.170	View precise location of 156.13.255.170 on the map!
156.13.255.231	View precise location of 156.13.255.231 on the map!
156.13.255.240	View precise location of 156.13.255.240 on the map!
156.13.255.122	View precise location of 156.13.255.122 on the map!
156.13.255.72	View precise location of 156.13.255.72 on the map!
156.13.255.172	View precise location of 156.13.255.172 on the map!

10 Random IPs

55.11.112.66	Find precise map location of 55.11.112.66
63.171.74.188	Find precise map location of 63.171.74.188
121.233.209.48	Find precise map location of 121.233.209.48
72.65.233.127	Find precise map location of 72.65.233.127
175.98.43.19	Find precise map location of 175.98.43.19
251.192.127.21	Find precise map location of 251.192.127.21
21.2.243.88	Find precise map location of 21.2.243.88
130.152.172.9	Find precise map location of 130.152.172.9
100.150.225.74	Find precise map location of 100.150.225.74
40.179.125.131	Find precise map location of 40.179.125.131
75.223.21.13	Find precise map location of 75.223.21.13

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