255.72.91 is a class C of IPs

Sample IPs from the class C 255.72.91

255.72.91.225	View precise location of 255.72.91.225 on the map!
255.72.91.252	View precise location of 255.72.91.252 on the map!
255.72.91.34	View precise location of 255.72.91.34 on the map!
255.72.91.29	View precise location of 255.72.91.29 on the map!
255.72.91.76	View precise location of 255.72.91.76 on the map!
255.72.91.150	View precise location of 255.72.91.150 on the map!
255.72.91.229	View precise location of 255.72.91.229 on the map!
255.72.91.106	View precise location of 255.72.91.106 on the map!
255.72.91.255	View precise location of 255.72.91.255 on the map!
255.72.91.228	View precise location of 255.72.91.228 on the map!
255.72.91.174	View precise location of 255.72.91.174 on the map!

10 Random IPs

53.101.30.37	Find precise map location of 53.101.30.37
121.133.193.249	Find precise map location of 121.133.193.249
52.188.81.13	Find precise map location of 52.188.81.13
125.52.183.18	Find precise map location of 125.52.183.18
37.18.161.47	Find precise map location of 37.18.161.47
211.202.249.139	Find precise map location of 211.202.249.139
217.233.99.211	Find precise map location of 217.233.99.211
239.122.60.221	Find precise map location of 239.122.60.221
226.67.144.232	Find precise map location of 226.67.144.232
128.186.98.136	Find precise map location of 128.186.98.136
34.51.8.73	Find precise map location of 34.51.8.73

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