21.150.6 is a class C of IPs

Sample IPs from the class C 21.150.6

21.150.6.49	View precise location of 21.150.6.49 on the map!
21.150.6.133	View precise location of 21.150.6.133 on the map!
21.150.6.162	View precise location of 21.150.6.162 on the map!
21.150.6.234	View precise location of 21.150.6.234 on the map!
21.150.6.18	View precise location of 21.150.6.18 on the map!
21.150.6.229	View precise location of 21.150.6.229 on the map!
21.150.6.155	View precise location of 21.150.6.155 on the map!
21.150.6.31	View precise location of 21.150.6.31 on the map!
21.150.6.21	View precise location of 21.150.6.21 on the map!
21.150.6.252	View precise location of 21.150.6.252 on the map!
21.150.6.77	View precise location of 21.150.6.77 on the map!

10 Random IPs

233.123.179.100	Find precise map location of 233.123.179.100
117.225.10.33	Find precise map location of 117.225.10.33
100.95.41.68	Find precise map location of 100.95.41.68
153.201.15.223	Find precise map location of 153.201.15.223
82.222.90.135	Find precise map location of 82.222.90.135
217.212.43.100	Find precise map location of 217.212.43.100
95.166.171.164	Find precise map location of 95.166.171.164
121.219.135.240	Find precise map location of 121.219.135.240
245.5.150.26	Find precise map location of 245.5.150.26
229.116.141.184	Find precise map location of 229.116.141.184
48.110.142.170	Find precise map location of 48.110.142.170

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