83.81.19 is a class C of IPs

Sample IPs from the class C 83.81.19

83.81.19.201	View precise location of 83.81.19.201 on the map!
83.81.19.42	View precise location of 83.81.19.42 on the map!
83.81.19.254	View precise location of 83.81.19.254 on the map!
83.81.19.234	View precise location of 83.81.19.234 on the map!
83.81.19.103	View precise location of 83.81.19.103 on the map!
83.81.19.246	View precise location of 83.81.19.246 on the map!
83.81.19.93	View precise location of 83.81.19.93 on the map!
83.81.19.158	View precise location of 83.81.19.158 on the map!
83.81.19.155	View precise location of 83.81.19.155 on the map!
83.81.19.68	View precise location of 83.81.19.68 on the map!
83.81.19.4	View precise location of 83.81.19.4 on the map!

10 Random IPs

99.252.134.223	Find precise map location of 99.252.134.223
237.124.7.235	Find precise map location of 237.124.7.235
171.207.135.54	Find precise map location of 171.207.135.54
104.242.149.194	Find precise map location of 104.242.149.194
252.2.63.101	Find precise map location of 252.2.63.101
90.90.18.48	Find precise map location of 90.90.18.48
25.35.157.108	Find precise map location of 25.35.157.108
33.161.92.195	Find precise map location of 33.161.92.195
182.47.123.83	Find precise map location of 182.47.123.83
141.205.38.125	Find precise map location of 141.205.38.125
208.51.149.111	Find precise map location of 208.51.149.111

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