121.253.164 is a class C of IPs

Sample IPs from the class C 121.253.164

121.253.164.22	View precise location of 121.253.164.22 on the map!
121.253.164.48	View precise location of 121.253.164.48 on the map!
121.253.164.78	View precise location of 121.253.164.78 on the map!
121.253.164.252	View precise location of 121.253.164.252 on the map!
121.253.164.71	View precise location of 121.253.164.71 on the map!
121.253.164.53	View precise location of 121.253.164.53 on the map!
121.253.164.188	View precise location of 121.253.164.188 on the map!
121.253.164.112	View precise location of 121.253.164.112 on the map!
121.253.164.7	View precise location of 121.253.164.7 on the map!
121.253.164.16	View precise location of 121.253.164.16 on the map!
121.253.164.209	View precise location of 121.253.164.209 on the map!

10 Random IPs

214.162.59.207	Find precise map location of 214.162.59.207
197.75.97.189	Find precise map location of 197.75.97.189
207.130.208.234	Find precise map location of 207.130.208.234
52.19.196.161	Find precise map location of 52.19.196.161
91.83.232.71	Find precise map location of 91.83.232.71
239.222.184.163	Find precise map location of 239.222.184.163
185.214.222.7	Find precise map location of 185.214.222.7
219.41.202.55	Find precise map location of 219.41.202.55
181.52.139.74	Find precise map location of 181.52.139.74
198.209.114.65	Find precise map location of 198.209.114.65
238.111.100.194	Find precise map location of 238.111.100.194

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