21.156.16 is a class C of IPs

Sample IPs from the class C 21.156.16

21.156.16.229	View precise location of 21.156.16.229 on the map!
21.156.16.226	View precise location of 21.156.16.226 on the map!
21.156.16.30	View precise location of 21.156.16.30 on the map!
21.156.16.130	View precise location of 21.156.16.130 on the map!
21.156.16.181	View precise location of 21.156.16.181 on the map!
21.156.16.50	View precise location of 21.156.16.50 on the map!
21.156.16.212	View precise location of 21.156.16.212 on the map!
21.156.16.67	View precise location of 21.156.16.67 on the map!
21.156.16.36	View precise location of 21.156.16.36 on the map!
21.156.16.8	View precise location of 21.156.16.8 on the map!
21.156.16.89	View precise location of 21.156.16.89 on the map!

10 Random IPs

249.201.42.213	Find precise map location of 249.201.42.213
50.129.195.54	Find precise map location of 50.129.195.54
183.213.238.55	Find precise map location of 183.213.238.55
217.30.51.53	Find precise map location of 217.30.51.53
204.121.55.201	Find precise map location of 204.121.55.201
219.60.222.104	Find precise map location of 219.60.222.104
123.39.124.142	Find precise map location of 123.39.124.142
57.242.27.229	Find precise map location of 57.242.27.229
66.106.100.153	Find precise map location of 66.106.100.153
251.40.59.26	Find precise map location of 251.40.59.26
185.235.149.242	Find precise map location of 185.235.149.242

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