255.12 is a class B of IPs

Sample IPs from the class B 255.12

255.12.122.202	View precise location of 255.12.122.202 on the map!
255.12.176.226	View precise location of 255.12.176.226 on the map!
255.12.147.90	View precise location of 255.12.147.90 on the map!
255.12.55.244	View precise location of 255.12.55.244 on the map!
255.12.12.250	View precise location of 255.12.12.250 on the map!
255.12.76.176	View precise location of 255.12.76.176 on the map!
255.12.234.121	View precise location of 255.12.234.121 on the map!
255.12.187.144	View precise location of 255.12.187.144 on the map!
255.12.99.85	View precise location of 255.12.99.85 on the map!
255.12.159.37	View precise location of 255.12.159.37 on the map!
255.12.189.84	View precise location of 255.12.189.84 on the map!

10 Random IPs

152.139.75.94	Find precise map location of 152.139.75.94
130.6.168.44	Find precise map location of 130.6.168.44
134.186.97.140	Find precise map location of 134.186.97.140
148.179.87.72	Find precise map location of 148.179.87.72
107.228.89.79	Find precise map location of 107.228.89.79
87.131.3.191	Find precise map location of 87.131.3.191
96.226.66.105	Find precise map location of 96.226.66.105
158.215.52.134	Find precise map location of 158.215.52.134
146.67.128.84	Find precise map location of 146.67.128.84
174.15.42.136	Find precise map location of 174.15.42.136
214.162.122.53	Find precise map location of 214.162.122.53

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