81.42.213 is a class C of IPs

Sample IPs from the class C 81.42.213

81.42.213.122	View precise location of 81.42.213.122 on the map!
81.42.213.107	View precise location of 81.42.213.107 on the map!
81.42.213.236	View precise location of 81.42.213.236 on the map!
81.42.213.202	View precise location of 81.42.213.202 on the map!
81.42.213.133	View precise location of 81.42.213.133 on the map!
81.42.213.33	View precise location of 81.42.213.33 on the map!
81.42.213.233	View precise location of 81.42.213.233 on the map!
81.42.213.188	View precise location of 81.42.213.188 on the map!
81.42.213.97	View precise location of 81.42.213.97 on the map!
81.42.213.10	View precise location of 81.42.213.10 on the map!
81.42.213.88	View precise location of 81.42.213.88 on the map!

10 Random IPs

250.66.192.69	Find precise map location of 250.66.192.69
75.47.230.48	Find precise map location of 75.47.230.48
119.104.5.220	Find precise map location of 119.104.5.220
90.171.215.211	Find precise map location of 90.171.215.211
187.242.164.6	Find precise map location of 187.242.164.6
84.59.143.50	Find precise map location of 84.59.143.50
45.49.252.172	Find precise map location of 45.49.252.172
32.59.98.148	Find precise map location of 32.59.98.148
38.244.106.26	Find precise map location of 38.244.106.26
219.127.29.81	Find precise map location of 219.127.29.81
206.65.160.234	Find precise map location of 206.65.160.234

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