121.3.39 is a class C of IPs

Sample IPs from the class C 121.3.39

121.3.39.29	View precise location of 121.3.39.29 on the map!
121.3.39.175	View precise location of 121.3.39.175 on the map!
121.3.39.224	View precise location of 121.3.39.224 on the map!
121.3.39.226	View precise location of 121.3.39.226 on the map!
121.3.39.153	View precise location of 121.3.39.153 on the map!
121.3.39.197	View precise location of 121.3.39.197 on the map!
121.3.39.13	View precise location of 121.3.39.13 on the map!
121.3.39.41	View precise location of 121.3.39.41 on the map!
121.3.39.197	View precise location of 121.3.39.197 on the map!
121.3.39.124	View precise location of 121.3.39.124 on the map!
121.3.39.100	View precise location of 121.3.39.100 on the map!

10 Random IPs

252.132.58.36	Find precise map location of 252.132.58.36
168.136.171.37	Find precise map location of 168.136.171.37
67.240.198.213	Find precise map location of 67.240.198.213
191.200.93.139	Find precise map location of 191.200.93.139
222.190.160.19	Find precise map location of 222.190.160.19
123.69.43.95	Find precise map location of 123.69.43.95
65.42.209.248	Find precise map location of 65.42.209.248
159.111.119.74	Find precise map location of 159.111.119.74
232.40.194.182	Find precise map location of 232.40.194.182
74.233.183.69	Find precise map location of 74.233.183.69
10.149.221.48	Find precise map location of 10.149.221.48

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