81.163.248 is a class C of IPs

Sample IPs from the class C 81.163.248

81.163.248.60	View precise location of 81.163.248.60 on the map!
81.163.248.188	View precise location of 81.163.248.188 on the map!
81.163.248.205	View precise location of 81.163.248.205 on the map!
81.163.248.188	View precise location of 81.163.248.188 on the map!
81.163.248.245	View precise location of 81.163.248.245 on the map!
81.163.248.74	View precise location of 81.163.248.74 on the map!
81.163.248.143	View precise location of 81.163.248.143 on the map!
81.163.248.86	View precise location of 81.163.248.86 on the map!
81.163.248.64	View precise location of 81.163.248.64 on the map!
81.163.248.220	View precise location of 81.163.248.220 on the map!
81.163.248.68	View precise location of 81.163.248.68 on the map!

10 Random IPs

11.116.181.137	Find precise map location of 11.116.181.137
153.222.131.39	Find precise map location of 153.222.131.39
144.6.212.190	Find precise map location of 144.6.212.190
140.32.127.10	Find precise map location of 140.32.127.10
180.142.246.23	Find precise map location of 180.142.246.23
79.155.162.63	Find precise map location of 79.155.162.63
185.104.2.236	Find precise map location of 185.104.2.236
187.23.42.143	Find precise map location of 187.23.42.143
74.168.158.245	Find precise map location of 74.168.158.245
235.166.102.54	Find precise map location of 235.166.102.54
234.213.215.153	Find precise map location of 234.213.215.153

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