Short Answer 
After deleting your Telegram account, you must wait 14 days before creating a new one with the same phone number to prevent unwanted reactivations. Once the waiting period is over, you can register a new account, ensuring the platform’s security and integrity.
Step 1: Understand the Waiting Period
After deleting your Telegram account, you can’t immediately create a new one. You need to wait for a specific time frame, which is particularly designed to protect user data and reduce system abuse.
Step 2: The Duration You Must Wait
The required waiting period is set at 14 days. During this time, you will be unable to register a new account using the same phone number. This rule ensures that any unwanted reactivation of accounts is prevented.
Step 3: Confirmation of Account Deletion
Once you have waited the full 14 days, you will then be allowed to create a new Telegram account with your previous phone number. This process helps maintain the integrity and security of the platform while managing user registrations effectively.