12.99.136 is a class C of IPs

Sample IPs from the class C 12.99.136

12.99.136.185	View precise location of 12.99.136.185 on the map!
12.99.136.174	View precise location of 12.99.136.174 on the map!
12.99.136.200	View precise location of 12.99.136.200 on the map!
12.99.136.170	View precise location of 12.99.136.170 on the map!
12.99.136.226	View precise location of 12.99.136.226 on the map!
12.99.136.206	View precise location of 12.99.136.206 on the map!
12.99.136.154	View precise location of 12.99.136.154 on the map!
12.99.136.236	View precise location of 12.99.136.236 on the map!
12.99.136.245	View precise location of 12.99.136.245 on the map!
12.99.136.48	View precise location of 12.99.136.48 on the map!
12.99.136.163	View precise location of 12.99.136.163 on the map!

10 Random IPs

187.130.240.228	Find precise map location of 187.130.240.228
114.182.152.152	Find precise map location of 114.182.152.152
161.31.5.107	Find precise map location of 161.31.5.107
229.214.231.187	Find precise map location of 229.214.231.187
67.120.55.169	Find precise map location of 67.120.55.169
207.216.233.179	Find precise map location of 207.216.233.179
12.67.20.120	Find precise map location of 12.67.20.120
176.204.37.211	Find precise map location of 176.204.37.211
185.73.168.42	Find precise map location of 185.73.168.42
26.135.93.82	Find precise map location of 26.135.93.82
146.8.192.60	Find precise map location of 146.8.192.60

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