Follow these simple steps to remove a phone number from your Twilio account:

1. Log in to your Twilio Console.
   
   
2. Go to the Phone Numbers section from the main menu.
   
   
3. Click on Manage, then select Active Numbers.
   
   
4. Select the number you want to delete from the list.
   
   
5. In the number details, go to the Properties tab.
   
   
6. Click on ‘Release Phone Number’ to remove it from your account.