IP address 3.18.56.123
IP address: 3.18.56.123
Address type: IPv4
Host or reverse DNS (rDNS): el2.convertkit-mail2.com
Country: 
United States
3.18.56.123 does NOT belong to a private IP address block.
3.18.56.123 does NOT belong to a reserved IP address block.
There are different formats or notations how the IP address 3.18.56.123 can be represented.
Dotted decimal: 3.18.56.123
Hexadecimal: 0x0312387B
Dotted hex: 0x03.0x12.0x38.0x7B
Decimal: 51525755
Octal: 0003.0022.0070.0173
Binary: 00000011.00010010.00111000.01111011