IP address 129.217.205.13
IP address: 129.217.205.13
Address type: IPv4
Host or reverse DNS (rDNS): dc3.tu-dortmund.de
Country: 
Germany
129.217.205.13 does NOT belong to a private IP address block.
129.217.205.13 does NOT belong to a reserved IP address block.
There are different formats or notations how the IP address 129.217.205.13 can be represented.
Dotted decimal: 129.217.205.13
Hexadecimal: 0x81D9CD0D
Dotted hex: 0x81.0xD9.0xCD.0x0D
Decimal: 2178534669
Octal: 0201.0331.0315.0015
Binary: 10000001.11011001.11001101.00001101