IP address 172.81.129.74
IP address: 172.81.129.74
Address type: IPv4
Host or reverse DNS (rDNS): s2.yourownnameserver.net
Country: 
United States
172.81.129.74 does NOT belong to a private IP address block.
172.81.129.74 does NOT belong to a reserved IP address block.
There are different formats or notations how the IP address 172.81.129.74 can be represented.
Dotted decimal: 172.81.129.74
Hexadecimal: 0xAC51814A
Dotted hex: 0xAC.0x51.0x81.0x4A
Decimal: 2891022666
Octal: 0254.0121.0201.0112
Binary: 10101100.01010001.10000001.01001010