121.84.87 is a class C of IPs

Sample IPs from the class C 121.84.87

121.84.87.255	View precise location of 121.84.87.255 on the map!
121.84.87.64	View precise location of 121.84.87.64 on the map!
121.84.87.127	View precise location of 121.84.87.127 on the map!
121.84.87.137	View precise location of 121.84.87.137 on the map!
121.84.87.239	View precise location of 121.84.87.239 on the map!
121.84.87.135	View precise location of 121.84.87.135 on the map!
121.84.87.194	View precise location of 121.84.87.194 on the map!
121.84.87.245	View precise location of 121.84.87.245 on the map!
121.84.87.215	View precise location of 121.84.87.215 on the map!
121.84.87.212	View precise location of 121.84.87.212 on the map!
121.84.87.102	View precise location of 121.84.87.102 on the map!

10 Random IPs

108.59.133.168	Find precise map location of 108.59.133.168
168.247.122.254	Find precise map location of 168.247.122.254
119.188.224.251	Find precise map location of 119.188.224.251
197.33.236.86	Find precise map location of 197.33.236.86
192.179.254.106	Find precise map location of 192.179.254.106
41.163.156.253	Find precise map location of 41.163.156.253
119.125.107.6	Find precise map location of 119.125.107.6
192.184.9.121	Find precise map location of 192.184.9.121
249.109.15.190	Find precise map location of 249.109.15.190
177.2.167.218	Find precise map location of 177.2.167.218
184.173.8.75	Find precise map location of 184.173.8.75

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