To move your existing number to Three just tell your old network provider you're leaving and ask them for a PAC (port authorisation code). Then you'll just need to fill in the online form at our Welcome to Three section. You can find the form by clicking the + next to Bringing your number to Three, then clicking on Pay Monthly or Pay As You Go. To fill in the form you'll also need:

• Your existing mobile number and your new Three number
• Your email address
• The name of your old network provider

If you fill in your form and send it through before 5pm Monday-Friday (excluding bank holidays), your number should be moved during the next working day. If you submit your form outside of these times, we’ll process your request as soon as we can on the next working day, and let you know by text and email when your number will be moved.

Register your account.

If you're on Pay As You Go on Three and are bringing your number over from your old network provider, you'll need to make sure that you've already registered your My3 account. You need to do this so we can move your number and send you details of when your number will be moved. Once you're registered we'll send you a text with your password. When you have your password log in to your My3 account and go to 'My Details' to register your personal details. We can't move your number without these details.

Getting a PAC from other networks.

You can find more details about how to get a PAC from other networks here.

Other things you need to know.

A few other things you need to know about moving your number to Three:

• You must have a Three account before we can move your existing number.
• If your PAC has expired, you'll need to call your old network provider to get a new one.
• Your account with your old network provider still needs to be active on the day of the move.
• If you have a contract and you’re still within the minimum term of your contract with your old network provider, you may still have to pay for the rest of your contract with them.
• If you were on Pay As You Go with your old network provider, any existing credit with them will be not transferred over with your number.
• If you want to cancel or change the date of the move, you must tell us before 5pm on the working day before the day of the move. You may experience some disruption to your service on the day of the move.

Pay As You Go - Move your number to Three and we’ll give you £10 credit as a thank you*.

We'll let you know when it’s added to your account. It'll be about 31 days from when you moved your number to Three, as long as you've topped up your account during this time.

* Only one £10 credit per number moved and only two £10 credits permitted per household.