121.84 is a class B of IPs

Sample IPs from the class B 121.84

121.84.217.194	View precise location of 121.84.217.194 on the map!
121.84.147.65	View precise location of 121.84.147.65 on the map!
121.84.76.142	View precise location of 121.84.76.142 on the map!
121.84.152.32	View precise location of 121.84.152.32 on the map!
121.84.27.52	View precise location of 121.84.27.52 on the map!
121.84.130.132	View precise location of 121.84.130.132 on the map!
121.84.25.201	View precise location of 121.84.25.201 on the map!
121.84.129.46	View precise location of 121.84.129.46 on the map!
121.84.236.141	View precise location of 121.84.236.141 on the map!
121.84.234.172	View precise location of 121.84.234.172 on the map!
121.84.211.114	View precise location of 121.84.211.114 on the map!

10 Random IPs

84.76.6.80	Find precise map location of 84.76.6.80
156.5.147.220	Find precise map location of 156.5.147.220
34.71.66.20	Find precise map location of 34.71.66.20
222.11.22.221	Find precise map location of 222.11.22.221
214.87.7.128	Find precise map location of 214.87.7.128
253.104.140.202	Find precise map location of 253.104.140.202
184.114.178.59	Find precise map location of 184.114.178.59
118.103.48.169	Find precise map location of 118.103.48.169
68.26.193.170	Find precise map location of 68.26.193.170
7.2.97.250	Find precise map location of 7.2.97.250
195.204.60.117	Find precise map location of 195.204.60.117

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