Sign in to your Verizon account on the My Verizon app or website
Go to the line you want to change
Select Manage device or Manage line
Choose Change mobile number or Change phone number
Follow the prompts to select a new number
Review and confirm any fees or requirements
Complete the change and save the confirmation
If you cannot change it online, contact Verizon Customer Service at 1-800-922-0204
Visit a Verizon store for in-person help if needed