Lookup of 18.238.4.99
IP address: 18.238.4.99
Address type: IPv4
Host or reverse DNS (rDNS): server-18-238-4-99.phl51.r.cloudfront.net
Country: 
United States
18.238.4.99 does NOT belong to a private IP address block.
18.238.4.99 does NOT belong to a reserved IP address block.