252.21.138 is a class C of IPs

Sample IPs from the class C 252.21.138

252.21.138.112	View precise location of 252.21.138.112 on the map!
252.21.138.186	View precise location of 252.21.138.186 on the map!
252.21.138.36	View precise location of 252.21.138.36 on the map!
252.21.138.193	View precise location of 252.21.138.193 on the map!
252.21.138.103	View precise location of 252.21.138.103 on the map!
252.21.138.194	View precise location of 252.21.138.194 on the map!
252.21.138.249	View precise location of 252.21.138.249 on the map!
252.21.138.3	View precise location of 252.21.138.3 on the map!
252.21.138.142	View precise location of 252.21.138.142 on the map!
252.21.138.72	View precise location of 252.21.138.72 on the map!
252.21.138.169	View precise location of 252.21.138.169 on the map!

10 Random IPs

100.18.198.119	Find precise map location of 100.18.198.119
163.232.192.250	Find precise map location of 163.232.192.250
252.249.61.6	Find precise map location of 252.249.61.6
153.5.244.77	Find precise map location of 153.5.244.77
2.185.95.206	Find precise map location of 2.185.95.206
12.214.117.80	Find precise map location of 12.214.117.80
224.108.19.251	Find precise map location of 224.108.19.251
32.210.132.1	Find precise map location of 32.210.132.1
108.18.185.37	Find precise map location of 108.18.185.37
247.217.24.143	Find precise map location of 247.217.24.143
59.138.204.207	Find precise map location of 59.138.204.207

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