21.6.136 is a class C of IPs

Sample IPs from the class C 21.6.136

21.6.136.69	View precise location of 21.6.136.69 on the map!
21.6.136.9	View precise location of 21.6.136.9 on the map!
21.6.136.26	View precise location of 21.6.136.26 on the map!
21.6.136.232	View precise location of 21.6.136.232 on the map!
21.6.136.255	View precise location of 21.6.136.255 on the map!
21.6.136.26	View precise location of 21.6.136.26 on the map!
21.6.136.84	View precise location of 21.6.136.84 on the map!
21.6.136.116	View precise location of 21.6.136.116 on the map!
21.6.136.129	View precise location of 21.6.136.129 on the map!
21.6.136.135	View precise location of 21.6.136.135 on the map!
21.6.136.26	View precise location of 21.6.136.26 on the map!

10 Random IPs

126.209.70.218	Find precise map location of 126.209.70.218
143.30.25.138	Find precise map location of 143.30.25.138
130.3.75.231	Find precise map location of 130.3.75.231
159.174.122.21	Find precise map location of 159.174.122.21
159.154.218.85	Find precise map location of 159.154.218.85
143.191.112.223	Find precise map location of 143.191.112.223
185.220.224.170	Find precise map location of 185.220.224.170
131.229.103.182	Find precise map location of 131.229.103.182
205.244.252.95	Find precise map location of 205.244.252.95
137.99.238.70	Find precise map location of 137.99.238.70
155.182.151.206	Find precise map location of 155.182.151.206

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