Lookup of 23.56.13.81
IP address: 23.56.13.81
Address type: IPv4
Host or reverse DNS (rDNS): a23-56-13-81.deploy.static.akamaitechnologies.com
Country: 
United States
23.56.13.81 does NOT belong to a private IP address block.
23.56.13.81 does NOT belong to a reserved IP address block.