Can someone create a new 4OVER4 account using a phone number that was previously associated with a deleted account?

Yes. A phone number is only reserved while the account tied to it is active. Once that account is deleted, the number is freed up and can be used to create a brand new account.

• An active account keeps its phone number reserved.
• Deleting the account releases the number for reuse.
• The freed number can then be used on a new, separate account.
• The new account starts fresh and is not linked to the deleted one.