21.3.254 is a class C of IPs

Sample IPs from the class C 21.3.254

21.3.254.189	View precise location of 21.3.254.189 on the map!
21.3.254.31	View precise location of 21.3.254.31 on the map!
21.3.254.8	View precise location of 21.3.254.8 on the map!
21.3.254.158	View precise location of 21.3.254.158 on the map!
21.3.254.229	View precise location of 21.3.254.229 on the map!
21.3.254.251	View precise location of 21.3.254.251 on the map!
21.3.254.47	View precise location of 21.3.254.47 on the map!
21.3.254.5	View precise location of 21.3.254.5 on the map!
21.3.254.207	View precise location of 21.3.254.207 on the map!
21.3.254.37	View precise location of 21.3.254.37 on the map!
21.3.254.100	View precise location of 21.3.254.100 on the map!

10 Random IPs

104.154.128.204	Find precise map location of 104.154.128.204
66.118.126.209	Find precise map location of 66.118.126.209
253.114.45.139	Find precise map location of 253.114.45.139
237.225.148.95	Find precise map location of 237.225.148.95
44.137.52.42	Find precise map location of 44.137.52.42
191.18.145.115	Find precise map location of 191.18.145.115
69.79.91.126	Find precise map location of 69.79.91.126
251.7.172.186	Find precise map location of 251.7.172.186
64.233.195.62	Find precise map location of 64.233.195.62
162.72.173.49	Find precise map location of 162.72.173.49
35.63.180.203	Find precise map location of 35.63.180.203

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