121.84.133 is a class C of IPs

Sample IPs from the class C 121.84.133

121.84.133.126	View precise location of 121.84.133.126 on the map!
121.84.133.203	View precise location of 121.84.133.203 on the map!
121.84.133.87	View precise location of 121.84.133.87 on the map!
121.84.133.255	View precise location of 121.84.133.255 on the map!
121.84.133.236	View precise location of 121.84.133.236 on the map!
121.84.133.23	View precise location of 121.84.133.23 on the map!
121.84.133.236	View precise location of 121.84.133.236 on the map!
121.84.133.49	View precise location of 121.84.133.49 on the map!
121.84.133.248	View precise location of 121.84.133.248 on the map!
121.84.133.45	View precise location of 121.84.133.45 on the map!
121.84.133.112	View precise location of 121.84.133.112 on the map!

10 Random IPs

93.161.51.178	Find precise map location of 93.161.51.178
101.19.9.55	Find precise map location of 101.19.9.55
189.117.153.34	Find precise map location of 189.117.153.34
98.235.35.44	Find precise map location of 98.235.35.44
67.194.122.198	Find precise map location of 67.194.122.198
35.36.16.175	Find precise map location of 35.36.16.175
48.56.78.17	Find precise map location of 48.56.78.17
144.202.244.40	Find precise map location of 144.202.244.40
117.5.208.157	Find precise map location of 117.5.208.157
79.28.242.14	Find precise map location of 79.28.242.14
123.212.58.23	Find precise map location of 123.212.58.23

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