How to transfer your number from Three Mobile to Tesco Mobile?

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 deal from Tesco Mobile

Assuming you’re ready to switch, it’s time to select a deal from Tesco Mobile and sign up for it through Uswitch.

Tesco Mobile will, of course, conduct credit checks. But assuming you pass, you’ll then receive your phone in the post.

5) Contact Tesco Mobile to give them your PAC Code

Now you’ll need to contact Tesco Mobile and give them your PAC Code.

You can get in touch with Tesco Mobile’s customer support team on 0345 301 4455 (standard network rates apply).

Opening hours are 8am-9pm Monday-Friday. 8am-8pm Saturdays and 10am-6pm Sundays.

6) Insert your Tesco Mobile SIM

Okay, now it’s time to insert your Tesco Mobile SIM in your new phone, or in your existing phone if you bought a SIM-only deal.

You’ll find that the number won’t have transferred straightaway. But while the transfer’s underway, you’ll be given a temporary number. So you’ll still be able to use your phone.

7) Wait for your number to be transferred to Tesco Mobile

All being well and if a weekend doesn't get in the way, your number should be transferred the next working day. After which point, you’re good to go.