How to transfer your number from Three Mobile to Vodafone?

1) Check you’re eligible to switch from Three

In the event that you’re out of contract, you’re free to switch whenever you like for no charge.

To find out your contract end date, you can:

Open up the Three app on your phone. Then click the ‘Plan’ icon at the bottom and scroll to the foot of the page, where you’ll find the date you’re free to leave.

Don’t have Three’s mobile app? No problem. You can also check your contract end date by logging into your Three account on Three’s site.

Prefer to call? You can get in touch with Three's customer support team on 333 from your Three phone. Or on 0333 338 1001 from any other phone (standard network charges apply).

And if you’re interested in switching but want a bit more information first, text INFO to 85075.

2) Contact Three to cancel your contract and get your PAC code

Okay. Now we’re really moving. With your new phone or SIM card winging its way to you, the next thing you need to do is contact Three and tell them you’d like to leave. At this point, you’ll be given a contract end date.

You can contact Three's customer support team by calling 333 from a Three phone. Or on 0333 338 1001 from any other phone.

Or, thanks to Text to Switch, you can just text PAC to 65075. You don't even need to make a phone call.

While you’re on the phone to Three, you also need to ask for a PAC Code. This is a short, alphanumeric code that you’ll need to transfer your phone number to the network you’re joining.

Three is bound by law to provide you with your code within two hours of your request. Once you’ve got the code, it’s a very good idea to make a note of it.

Your PAC code expires after 30 days. So if you haven’t used it within this timeframe, you’ll have to contact Three to get another one.

3) Early upgrades

Three does not offer a mid-contract early upgrade scheme that’s comparable to O2 Refresh or Tesco Mobile’s Anytime Upgrade.

However, customers on Three’s phone and contract plans are offered an upgrade with 30 days remaining on their contract.

4) Find and buy a phone from Vodafone

So you’re out of contract and ready to switch. That’s great. Your next step is to choose a deal from Vodafone and sign up for it.

Once you’ve passed Vodafone’s credit checks, you’ll receive your phone or SIM in the post.

5) Contact Vodafone and give them your PAC code

Okay, we’re well on our way now. Next, you’ll have to ring Vodafone and tell them your PAC Code.

To get in touch, call Vodafone’s customer support team on 03333 040 191 (standard network rates apply).

6) Insert your new Vodafone SIM card

If you got a new phone, it's time to take your pin-key and unlock the handset's SIM tray. Then insert your Vodafone SIM.

If you opted for a SIM-only deal, you can just put the Vodafone SIM card in your existing phone.

The number transfer won’t take place instantly, but while it’s underway you’ll be given a temporary number to use.

7) Wait for your number to be transferred to Vodafone

Experience tells us that your number transfer should be complete the next working day.

But this depends on the network you’re joining and there are some circumstances under which it may take a bit longer. For instance, if you make your call on a working day or a weekend.