121.102.129 is a class C of IPs

Sample IPs from the class C 121.102.129

121.102.129.66	View precise location of 121.102.129.66 on the map!
121.102.129.99	View precise location of 121.102.129.99 on the map!
121.102.129.92	View precise location of 121.102.129.92 on the map!
121.102.129.203	View precise location of 121.102.129.203 on the map!
121.102.129.241	View precise location of 121.102.129.241 on the map!
121.102.129.187	View precise location of 121.102.129.187 on the map!
121.102.129.52	View precise location of 121.102.129.52 on the map!
121.102.129.124	View precise location of 121.102.129.124 on the map!
121.102.129.148	View precise location of 121.102.129.148 on the map!
121.102.129.151	View precise location of 121.102.129.151 on the map!
121.102.129.250	View precise location of 121.102.129.250 on the map!

10 Random IPs

30.212.226.107	Find precise map location of 30.212.226.107
7.81.154.58	Find precise map location of 7.81.154.58
245.30.198.249	Find precise map location of 245.30.198.249
199.148.136.129	Find precise map location of 199.148.136.129
168.118.162.187	Find precise map location of 168.118.162.187
134.230.3.244	Find precise map location of 134.230.3.244
169.224.214.67	Find precise map location of 169.224.214.67
158.17.155.114	Find precise map location of 158.17.155.114
44.239.71.34	Find precise map location of 44.239.71.34
47.91.156.73	Find precise map location of 47.91.156.73
159.243.53.37	Find precise map location of 159.243.53.37

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