IP address 81.19.159.20
IP address: 81.19.159.20
Address type: IPv4
Host or reverse DNS (rDNS): www20sni.world4you.com
Country: 
Austria
81.19.159.20 does NOT belong to a private IP address block.
81.19.159.20 does NOT belong to a reserved IP address block.
There are different formats or notations how the IP address 81.19.159.20 can be represented.
Dotted decimal: 81.19.159.20
Hexadecimal: 0x51139F14
Dotted hex: 0x51.0x13.0x9F.0x14
Decimal: 1360240404
Octal: 0121.0023.0237.0024
Binary: 01010001.00010011.10011111.00010100