21.243.53 is a class C of IPs

Sample IPs from the class C 21.243.53

21.243.53.117	View precise location of 21.243.53.117 on the map!
21.243.53.81	View precise location of 21.243.53.81 on the map!
21.243.53.117	View precise location of 21.243.53.117 on the map!
21.243.53.230	View precise location of 21.243.53.230 on the map!
21.243.53.105	View precise location of 21.243.53.105 on the map!
21.243.53.52	View precise location of 21.243.53.52 on the map!
21.243.53.52	View precise location of 21.243.53.52 on the map!
21.243.53.161	View precise location of 21.243.53.161 on the map!
21.243.53.31	View precise location of 21.243.53.31 on the map!
21.243.53.6	View precise location of 21.243.53.6 on the map!
21.243.53.238	View precise location of 21.243.53.238 on the map!

10 Random IPs

183.97.255.148	Find precise map location of 183.97.255.148
162.195.5.227	Find precise map location of 162.195.5.227
135.139.60.196	Find precise map location of 135.139.60.196
248.184.160.36	Find precise map location of 248.184.160.36
159.71.92.67	Find precise map location of 159.71.92.67
202.16.181.24	Find precise map location of 202.16.181.24
83.78.83.107	Find precise map location of 83.78.83.107
55.67.90.170	Find precise map location of 55.67.90.170
51.16.24.119	Find precise map location of 51.16.24.119
8.65.146.206	Find precise map location of 8.65.146.206
161.16.142.35	Find precise map location of 161.16.142.35

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