81.72.48 is a class C of IPs

Sample IPs from the class C 81.72.48

81.72.48.82	View precise location of 81.72.48.82 on the map!
81.72.48.21	View precise location of 81.72.48.21 on the map!
81.72.48.249	View precise location of 81.72.48.249 on the map!
81.72.48.154	View precise location of 81.72.48.154 on the map!
81.72.48.55	View precise location of 81.72.48.55 on the map!
81.72.48.45	View precise location of 81.72.48.45 on the map!
81.72.48.36	View precise location of 81.72.48.36 on the map!
81.72.48.243	View precise location of 81.72.48.243 on the map!
81.72.48.202	View precise location of 81.72.48.202 on the map!
81.72.48.241	View precise location of 81.72.48.241 on the map!
81.72.48.213	View precise location of 81.72.48.213 on the map!

10 Random IPs

12.31.53.33	Find precise map location of 12.31.53.33
250.62.219.18	Find precise map location of 250.62.219.18
32.73.221.180	Find precise map location of 32.73.221.180
156.22.28.210	Find precise map location of 156.22.28.210
149.203.146.97	Find precise map location of 149.203.146.97
141.248.169.93	Find precise map location of 141.248.169.93
3.191.166.147	Find precise map location of 3.191.166.147
146.16.97.46	Find precise map location of 146.16.97.46
183.76.141.95	Find precise map location of 183.76.141.95
37.111.169.145	Find precise map location of 37.111.169.145
176.3.150.49	Find precise map location of 176.3.150.49

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