21.167 is a class B of IPs

Sample IPs from the class B 21.167

21.167.33.65	View precise location of 21.167.33.65 on the map!
21.167.186.244	View precise location of 21.167.186.244 on the map!
21.167.100.143	View precise location of 21.167.100.143 on the map!
21.167.51.110	View precise location of 21.167.51.110 on the map!
21.167.232.51	View precise location of 21.167.232.51 on the map!
21.167.253.229	View precise location of 21.167.253.229 on the map!
21.167.250.93	View precise location of 21.167.250.93 on the map!
21.167.237.10	View precise location of 21.167.237.10 on the map!
21.167.52.143	View precise location of 21.167.52.143 on the map!
21.167.27.171	View precise location of 21.167.27.171 on the map!
21.167.230.140	View precise location of 21.167.230.140 on the map!

10 Random IPs

168.174.9.141	Find precise map location of 168.174.9.141
18.25.149.242	Find precise map location of 18.25.149.242
90.70.116.182	Find precise map location of 90.70.116.182
75.20.216.237	Find precise map location of 75.20.216.237
249.51.123.168	Find precise map location of 249.51.123.168
6.69.134.152	Find precise map location of 6.69.134.152
14.225.28.131	Find precise map location of 14.225.28.131
21.54.134.170	Find precise map location of 21.54.134.170
182.109.45.40	Find precise map location of 182.109.45.40
3.9.244.32	Find precise map location of 3.9.244.32
8.137.76.5	Find precise map location of 8.137.76.5

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