Lookup of 104.154.100.138
IP address: 104.154.100.138
Address type: IPv4
Host or reverse DNS (rDNS): 138.100.154.104.bc.googleusercontent.com
Country: 
United States
104.154.100.138 does NOT belong to a private IP address block.
104.154.100.138 does NOT belong to a reserved IP address block.