255.187 is a class B of IPs

Sample IPs from the class B 255.187

255.187.234.2	View precise location of 255.187.234.2 on the map!
255.187.9.161	View precise location of 255.187.9.161 on the map!
255.187.108.28	View precise location of 255.187.108.28 on the map!
255.187.243.98	View precise location of 255.187.243.98 on the map!
255.187.125.41	View precise location of 255.187.125.41 on the map!
255.187.76.146	View precise location of 255.187.76.146 on the map!
255.187.75.125	View precise location of 255.187.75.125 on the map!
255.187.141.34	View precise location of 255.187.141.34 on the map!
255.187.50.215	View precise location of 255.187.50.215 on the map!
255.187.176.96	View precise location of 255.187.176.96 on the map!
255.187.111.164	View precise location of 255.187.111.164 on the map!

10 Random IPs

167.150.9.159	Find precise map location of 167.150.9.159
10.66.253.78	Find precise map location of 10.66.253.78
178.132.216.116	Find precise map location of 178.132.216.116
49.65.73.236	Find precise map location of 49.65.73.236
201.244.234.70	Find precise map location of 201.244.234.70
218.240.161.204	Find precise map location of 218.240.161.204
13.47.42.235	Find precise map location of 13.47.42.235
120.171.89.211	Find precise map location of 120.171.89.211
206.150.81.171	Find precise map location of 206.150.81.171
66.110.71.104	Find precise map location of 66.110.71.104
170.73.146.78	Find precise map location of 170.73.146.78

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