FALSE
IPv6 Address Formats
An IPv6 address is 128 bits long and is written as eight groups of four hexadecimal digits (base 16 digits represented by the numbers 0-9 and the letters A-F). Each group is separated by a colon (:). For example, FC00:0000:130F:0000:0000:09C0:876A:130B is a complete and valid IPv6 address.
For convenience, IPv6 addresses can be written in a compressed format. Taking the IPv6 address FC00:0000:130F:0000:0000:09C0:876A:130B as an example:
- Any leading zeroes in a group can be omitted. The example address now becomes FC00:0:130F:0:0:9C0:876A:130B.
- A double colon (::) can be used when two or more consecutive groups contain all zeros. The example address now becomes FC00:0:130F::9C0:876A:130B.

An IPv6 address can contain only one double colon (::). Otherwise, a computer cannot determine the number of zeros in a group when restoring the compressed address to the original 128-bit address.