Whether you're joining Tesco Mobile or leaving for a different network, it's a straightforward process to keep your old phone number.

Tesco PAC CodeIf you're leaving Tesco and joining another network or if you're leaving another network in order to join Tesco, it's easy to keep your old phone number. All you need to do is to request a PAC Code: it's totally free and the entire process of transferring your phone number should normally take no longer than one working day.

For detailed instructions, please choose the option that best applies to you:

Leaving Tesco For Another Network

Tesco Mobile

If you're leaving Tesco Mobile and joining another network, you can take your phone number with you.

Start by asking Tesco to issue you with a PAC Code. You can get a PAC Code from Tesco Mobile by calling 4455 on your Tesco Mobile handset. Alternatively, dial 0345 301 4455 from any other phone.

You can request a PAC Code over the phone at any time during Tesco Mobile's opening hours:

Monday - Friday8.00am - 9.00pm
Saturday8.00am - 8.00pm
Sunday10.00am - 6.00pm

It's always free to get a PAC Code from Tesco Mobile (it's your legal entitlement). After getting your Tesco PAC Code, you'll need to provide it to your new network operator. For detailed instructions, please select your new network operator from the dropdown menu below:

PAC Code Finder: How to use your Tesco PAC Code

Your new network provider:

Joining Tesco From Another Network

Tesco Mobile

If you're joining Tesco Mobile from another network, you should ask your old network to provide you with a PAC Code. The PAC Code will allow you to transfer your number to Tesco Mobile.

After getting the PAC Code, you should order your new handset or SIM card directly from Tesco's website. For more information, please select the type of tariff you're wanting to move to:

For a full list of the latest Tesco deals, please see this page on Tesco Mobile's website.

Get the Latest Deals from Tesco Mobile →

Once Your New Phone Arrives...

Once your new phone or SIM card arrives from Tesco Mobile, turn it on and make sure everything's working properly. If you need to return or change the new handset/SIM card, please do this before you transfer your phone number.

Once you're happy to continue with the transfer, your PAC Code should be entered on Tesco Mobile's online form. Alternatively, you can give the PAC Code to Tesco Mobile by calling 4455 on your Tesco Mobile handset. You can also call 0345 301 4455 from any other phone.

Providing your PAC Code to Tesco Mobile
The PAC Code should be submitted through a form on Tesco Mobile's website.

Once you've provided your PAC code to Tesco Mobile, your phone number transfer will normally be scheduled for the next working day (Monday to Friday only, excluding English bank holidays).

Upgrading Your Plan On Tesco

Tesco Mobile
Tesco Mobile

If you're simply upgrading to a newer handset or tariff, it's not necessary to use a Tesco Mobile PAC Code. You can simply upgrade via Tesco Mobile's website. For more information, please select the type of tariff you're planning to move to:

More Information

For more information, please see the Tesco Mobile website. You can also read our full guide on using a PAC Code: there's frequently asked questions amongst other tips for transferring your phone number.

For discussion, please see the comments on this page. They show other people's experiences either when using a Tesco PAC Code or when transferring their phone number from another network to Tesco Mobile.

Your Comments 1,239 so far

We would love to hear your comments: either about using a Tesco Mobile PAC Code or transferring your phone number from another network to Tesco Mobile. The comments below are all from people who've done the same thing in the past. You can contribute by adding your own comments here.

To see all 1239 comments about transferring a phone number, please see the main PAC Codes article.

  • Both of us switched from Tesco mobile pay as you go to a Sky monthly Sim.
    Got the pac’s no problem
    Got the new Sims same no problem
    BUT
    Phones now say they need to be unlocked
    Would have been nice to know beforehand
    Telco mobile help page says ring them- on what
    Or take 24 hours for an email reply
    Absolute disgrace for what should be a simple service
    Any thoughts???

    Jim Pierce transferred a phone number from Tesco Mobile to Sky Mobile.

    • Hi Jim,
      I’m really sorry to hear that Sky Mobile didn’t make it clear you would need to unlock your existing handset before using a SIM card from their network. Unfortunately, this is an unavoidable process that applies to anyone wanting to use their phone on a different network, and you’ll need to liaise with your old network to get your handset unlocked.
      Ken

  • I am absolutely disgusted with asda mobile, i called for a pac code a couple of days ago, and only because they could not sort a problem theycreated, i only phoned tesco mobile today gave them the pac code, they disconnected me about 6 which was before tesco had time to connect me over properly after i gave them the pac code i was given. My son rang me on the housephone just now, because they have already given my number to someone else before tesco have finished transferring. What the hell are they doing. Can you offer any advice please, this is going to create so much inconvenience.

    Sue transferred a phone number from ASDA Mobile to Tesco Mobile.

    • Hi Sue,
      I’m so sorry to hear about the problems you’ve encountered moving a phone number from ASDA Mobile to Tesco Mobile. Typically, it’s the responsibility of your new mobile network if something goes wrong during a phone number transfer. However, as I understand from your message, it was slightly different in your case that ASDA Mobile cut off your phone before the transferred occurred? If so, this isn’t the typical behaviour and as such, I wouldn’t really be able to give you any detailed suggestions. The chances are you’ll need to contact ASDA Mobile Customer Support to get this issue resolved: you can reach them on 0800 079 2732.
      Ken

  • I have recently transferred from Tesco to Talktalk mobile (last Monday) and for 2days I could make phone calls but not receive them. Dialing my number from my landline gave varying results from “You have dialed an incorrect number” to 2 ring tones then disconnected tone then “this number is not receiving calls at the moment”.
    Due to 2days of frustration I demanded the PAC code back and Transferred back to Tesco but the problem remained even with Tesco.
    Now a further 2 days without incoming calls (except from a friend with a Tesco SIM) I am again totaly frustrated.
    I have complained bitterly to tesco but still waiting. can you make any suggestions
    Regard
    Harry

    Harry Orchard transferred a phone number from Tesco Mobile to TalkTalk Mobile.

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