121.82.137 is a class C of IPs

Sample IPs from the class C 121.82.137

121.82.137.10	View precise location of 121.82.137.10 on the map!
121.82.137.224	View precise location of 121.82.137.224 on the map!
121.82.137.131	View precise location of 121.82.137.131 on the map!
121.82.137.36	View precise location of 121.82.137.36 on the map!
121.82.137.60	View precise location of 121.82.137.60 on the map!
121.82.137.86	View precise location of 121.82.137.86 on the map!
121.82.137.27	View precise location of 121.82.137.27 on the map!
121.82.137.17	View precise location of 121.82.137.17 on the map!
121.82.137.149	View precise location of 121.82.137.149 on the map!
121.82.137.48	View precise location of 121.82.137.48 on the map!
121.82.137.75	View precise location of 121.82.137.75 on the map!

10 Random IPs

14.238.142.49	Find precise map location of 14.238.142.49
28.1.252.228	Find precise map location of 28.1.252.228
227.253.61.171	Find precise map location of 227.253.61.171
21.207.130.206	Find precise map location of 21.207.130.206
84.64.159.131	Find precise map location of 84.64.159.131
168.95.101.156	Find precise map location of 168.95.101.156
113.109.222.188	Find precise map location of 113.109.222.188
9.38.155.1	Find precise map location of 9.38.155.1
77.184.1.123	Find precise map location of 77.184.1.123
65.150.4.32	Find precise map location of 65.150.4.32
42.241.170.202	Find precise map location of 42.241.170.202

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