21.139.210 is a class C of IPs

Sample IPs from the class C 21.139.210

21.139.210.182	View precise location of 21.139.210.182 on the map!
21.139.210.93	View precise location of 21.139.210.93 on the map!
21.139.210.190	View precise location of 21.139.210.190 on the map!
21.139.210.240	View precise location of 21.139.210.240 on the map!
21.139.210.16	View precise location of 21.139.210.16 on the map!
21.139.210.83	View precise location of 21.139.210.83 on the map!
21.139.210.158	View precise location of 21.139.210.158 on the map!
21.139.210.231	View precise location of 21.139.210.231 on the map!
21.139.210.136	View precise location of 21.139.210.136 on the map!
21.139.210.58	View precise location of 21.139.210.58 on the map!
21.139.210.122	View precise location of 21.139.210.122 on the map!

10 Random IPs

8.179.135.16	Find precise map location of 8.179.135.16
100.32.189.90	Find precise map location of 100.32.189.90
245.227.25.56	Find precise map location of 245.227.25.56
43.169.86.218	Find precise map location of 43.169.86.218
69.136.120.222	Find precise map location of 69.136.120.222
97.87.147.79	Find precise map location of 97.87.147.79
99.117.214.226	Find precise map location of 99.117.214.226
45.200.63.51	Find precise map location of 45.200.63.51
163.60.204.119	Find precise map location of 163.60.204.119
168.234.77.158	Find precise map location of 168.234.77.158
26.229.243.224	Find precise map location of 26.229.243.224

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