81.220.42 is a class C of IPs

Sample IPs from the class C 81.220.42

81.220.42.53	View precise location of 81.220.42.53 on the map!
81.220.42.54	View precise location of 81.220.42.54 on the map!
81.220.42.87	View precise location of 81.220.42.87 on the map!
81.220.42.115	View precise location of 81.220.42.115 on the map!
81.220.42.204	View precise location of 81.220.42.204 on the map!
81.220.42.233	View precise location of 81.220.42.233 on the map!
81.220.42.161	View precise location of 81.220.42.161 on the map!
81.220.42.125	View precise location of 81.220.42.125 on the map!
81.220.42.33	View precise location of 81.220.42.33 on the map!
81.220.42.64	View precise location of 81.220.42.64 on the map!
81.220.42.64	View precise location of 81.220.42.64 on the map!

10 Random IPs

73.242.159.239	Find precise map location of 73.242.159.239
60.112.115.130	Find precise map location of 60.112.115.130
151.130.226.195	Find precise map location of 151.130.226.195
50.187.177.244	Find precise map location of 50.187.177.244
20.143.161.231	Find precise map location of 20.143.161.231
205.203.84.17	Find precise map location of 205.203.84.17
232.90.196.250	Find precise map location of 232.90.196.250
104.180.212.57	Find precise map location of 104.180.212.57
205.201.156.216	Find precise map location of 205.201.156.216
218.23.150.89	Find precise map location of 218.23.150.89
66.227.7.111	Find precise map location of 66.227.7.111

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