89.21.187 is a class C of IPs

Sample IPs from the class C 89.21.187

89.21.187.57	View precise location of 89.21.187.57 on the map!
89.21.187.217	View precise location of 89.21.187.217 on the map!
89.21.187.143	View precise location of 89.21.187.143 on the map!
89.21.187.194	View precise location of 89.21.187.194 on the map!
89.21.187.200	View precise location of 89.21.187.200 on the map!
89.21.187.107	View precise location of 89.21.187.107 on the map!
89.21.187.89	View precise location of 89.21.187.89 on the map!
89.21.187.48	View precise location of 89.21.187.48 on the map!
89.21.187.204	View precise location of 89.21.187.204 on the map!
89.21.187.73	View precise location of 89.21.187.73 on the map!
89.21.187.121	View precise location of 89.21.187.121 on the map!

10 Random IPs

43.232.62.67	Find precise map location of 43.232.62.67
231.172.224.99	Find precise map location of 231.172.224.99
99.242.134.56	Find precise map location of 99.242.134.56
103.145.244.120	Find precise map location of 103.145.244.120
220.81.92.244	Find precise map location of 220.81.92.244
233.233.130.122	Find precise map location of 233.233.130.122
42.82.129.137	Find precise map location of 42.82.129.137
146.229.133.61	Find precise map location of 146.229.133.61
237.229.169.207	Find precise map location of 237.229.169.207
74.175.131.139	Find precise map location of 74.175.131.139
93.113.12.243	Find precise map location of 93.113.12.243

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