21.3.152 is a class C of IPs

Sample IPs from the class C 21.3.152

21.3.152.112	View precise location of 21.3.152.112 on the map!
21.3.152.61	View precise location of 21.3.152.61 on the map!
21.3.152.127	View precise location of 21.3.152.127 on the map!
21.3.152.110	View precise location of 21.3.152.110 on the map!
21.3.152.168	View precise location of 21.3.152.168 on the map!
21.3.152.72	View precise location of 21.3.152.72 on the map!
21.3.152.226	View precise location of 21.3.152.226 on the map!
21.3.152.209	View precise location of 21.3.152.209 on the map!
21.3.152.52	View precise location of 21.3.152.52 on the map!
21.3.152.220	View precise location of 21.3.152.220 on the map!
21.3.152.207	View precise location of 21.3.152.207 on the map!

10 Random IPs

104.217.21.67	Find precise map location of 104.217.21.67
58.90.159.249	Find precise map location of 58.90.159.249
247.31.212.53	Find precise map location of 247.31.212.53
86.93.26.96	Find precise map location of 86.93.26.96
14.227.59.237	Find precise map location of 14.227.59.237
156.55.244.36	Find precise map location of 156.55.244.36
253.223.60.92	Find precise map location of 253.223.60.92
219.106.166.153	Find precise map location of 219.106.166.153
167.16.243.176	Find precise map location of 167.16.243.176
94.213.135.150	Find precise map location of 94.213.135.150
117.250.240.92	Find precise map location of 117.250.240.92

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