Lookup of 23.20.8.28
IP address: 23.20.8.28
Address type: IPv4
Host or reverse DNS (rDNS): ec2-23-20-8-28.compute-1.amazonaws.com
Country: 
United States
23.20.8.28 does NOT belong to a private IP address block.
23.20.8.28 does NOT belong to a reserved IP address block.