21.30.6 is a class C of IPs

Sample IPs from the class C 21.30.6

21.30.6.156	View precise location of 21.30.6.156 on the map!
21.30.6.77	View precise location of 21.30.6.77 on the map!
21.30.6.94	View precise location of 21.30.6.94 on the map!
21.30.6.94	View precise location of 21.30.6.94 on the map!
21.30.6.90	View precise location of 21.30.6.90 on the map!
21.30.6.237	View precise location of 21.30.6.237 on the map!
21.30.6.135	View precise location of 21.30.6.135 on the map!
21.30.6.94	View precise location of 21.30.6.94 on the map!
21.30.6.215	View precise location of 21.30.6.215 on the map!
21.30.6.66	View precise location of 21.30.6.66 on the map!
21.30.6.85	View precise location of 21.30.6.85 on the map!

10 Random IPs

39.239.44.154	Find precise map location of 39.239.44.154
188.52.230.222	Find precise map location of 188.52.230.222
182.231.106.159	Find precise map location of 182.231.106.159
44.249.241.83	Find precise map location of 44.249.241.83
228.45.84.208	Find precise map location of 228.45.84.208
139.16.19.100	Find precise map location of 139.16.19.100
55.99.126.153	Find precise map location of 55.99.126.153
6.218.111.102	Find precise map location of 6.218.111.102
202.26.92.106	Find precise map location of 202.26.92.106
189.84.102.180	Find precise map location of 189.84.102.180
189.56.250.255	Find precise map location of 189.56.250.255

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