What does unallocated mean?
It could mean one of two things; it is a block of numbers that has not been assigned to a provider by the number administrator, or it has been assigned to a provider but the provider has not assigned it to a user.
It could mean one of two things; it is a block of numbers that has not been assigned to a provider by the number administrator, or it has been assigned to a provider but the provider has not assigned it to a user.