How many bytes and bits make up an IPv6 address?

How many bytes and bits make up an IPv6 address?

• 256 bits (32 bytes)
• 32 bits (4 bytes)
• 64 bits (8 bytes)
• 128 bits (16 bytes) 

EXPLANATION

IPv6 addresses are 128-bit hexadecimal numbers

The IPv4 addresses we are all used to seeing are made up of four numerical octets that combine to form a 32-bit address. IPv6 addresses look nothing like IPv4 addresses. IPv6 addresses are 128 bits in length and are made up of hexadecimal characters.
In IPv4, each octet consists of a decimal number ranging from 0 to 255. These numbers are typically separated by periods. In IPv6, addresses are expressed as a series of eight 4-character hexadecimal numbers, which represent 16 bits each (for a total of 128 bits). As we'll see in a minute, IPv6 addresses can sometimes be abbreviated in a way that allows them to be expressed with fewer characters.