194.21.81 is a class C of IPs

Sample IPs from the class C 194.21.81

194.21.81.217	View precise location of 194.21.81.217 on the map!
194.21.81.244	View precise location of 194.21.81.244 on the map!
194.21.81.221	View precise location of 194.21.81.221 on the map!
194.21.81.128	View precise location of 194.21.81.128 on the map!
194.21.81.174	View precise location of 194.21.81.174 on the map!
194.21.81.41	View precise location of 194.21.81.41 on the map!
194.21.81.197	View precise location of 194.21.81.197 on the map!
194.21.81.125	View precise location of 194.21.81.125 on the map!
194.21.81.192	View precise location of 194.21.81.192 on the map!
194.21.81.26	View precise location of 194.21.81.26 on the map!
194.21.81.140	View precise location of 194.21.81.140 on the map!

10 Random IPs

186.216.123.30	Find precise map location of 186.216.123.30
89.114.54.88	Find precise map location of 89.114.54.88
58.115.173.201	Find precise map location of 58.115.173.201
236.28.7.40	Find precise map location of 236.28.7.40
9.255.162.213	Find precise map location of 9.255.162.213
202.223.60.191	Find precise map location of 202.223.60.191
20.198.28.232	Find precise map location of 20.198.28.232
39.161.83.107	Find precise map location of 39.161.83.107
102.91.159.116	Find precise map location of 102.91.159.116
71.12.82.62	Find precise map location of 71.12.82.62
130.100.79.111	Find precise map location of 130.100.79.111

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