iD Mobile PAC Code: Keep Your Phone Number When Changing Networks

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

iD PAC CodeIf you're leaving iD and joining another network or if you're leaving another network in order to join iD, 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 iD For Another Network

iD Mobile

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

Start by asking iD to issue you with a PAC Code. You can get a PAC Code from iD Mobile by calling 7777 on your iD Mobile handset. Alternatively, dial 0333 003 7777 from any other phone.

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

Monday - Friday8.00am - 8.00pm
Saturday8.00am - 8.00pm
Sunday8.00am - 8.00pm

It's always free to get a PAC Code from iD Mobile (it's your legal entitlement). After getting your iD 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 iD PAC Code

Your new network provider:

Joining iD From Another Network

iD Mobile

If you're joining iD 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 iD Mobile.

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

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

Get the Latest Deals from iD Mobile »

Once Your New Phone Arrives...

Once your new phone or SIM card arrives from iD 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 iD Mobile's online form. Alternatively, you can give the PAC Code to iD Mobile by calling 7777 on your iD Mobile handset. You can also call 0333 003 7777 from any other phone.

Providing your PAC Code to iD Mobile

The PAC Code should be submitted through a form on iD Mobile's website.

If your PAC Code is provided before 6.00pm, your phone number transfer will normally be scheduled for the next working day (Monday to Friday only, excluding English bank holidays). For PAC Codes submitted after the 6.00pm cut-off, you'll need to wait one extra working day for your number to be transferred.

Upgrading Your Plan On iD

iD Mobile
iD Mobile

If you're simply upgrading to a newer handset or tariff, it's not necessary to use an iD Mobile PAC Code. You can simply upgrade via iD 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 iD 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 an iD PAC Code or when transferring their phone number from another network to iD Mobile.

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About Ken

Ken Lo

My passion is helping people to get the most out of their mobile phone. I've been blogging at Ken's Tech Tips since 2005.

Aside from writing about mobile technology, my interests are in software development, digital marketing and physics. Outside of the blog, I work with numerous technology companies helping them to explain their product and helping them to market it to consumers. Please get in touch for more information.

Your Comments

We would love to hear your comments: either about using an iD Mobile PAC Code or transferring your phone number from another network to iD 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 1168 comments about transferring a phone number, please see the main PAC Codes article.

  1. Faith said:

    I was on Pay + Go with LycaMobile but I went to Carphone Warehouse on Thursday and saw iD contract was cheap, and I choose iD. But I want to keep the same number from my lyca to iD. And the woman that worked there say that it would be easier to change my number online or on the app. So I waited for lyca to send me a message of the PAC code in the evening but it didn’t send. However, on Friday morning when I woke up, I saw the PAC code message has been delivered, so I made an account on the iD app and changed my number and Hopi that the number will change within that day. But they didn’t. I contacted the iD department on twitter hoping that they will help me and they said that number will change on Monday because they don’t work on the weekend. I was a bit angry hoping that I can go out and use my contract whenever I need it with my number. And today is Monday, the number hasn’t changed, so what do I do? (Ps. I’ve contacted iD on twitter but they are not answering my questions, wondering if you could help me)

    From Faith

    Faith transferred a phone number from Lycamobile to iD Mobile.

    1. Ken replied:

      Hi Faith,
      Thanks for your comment. There’s more information here on the expected timeframes for a phone number transfer. In short: if you make your request before the cut-off on Friday, your phone number will transfer some time on Monday. Today, I’d keep both of the SIM cards with you (it’s likely you’ll lose coverage at some point on Lycamobile, after which your iD Mobile SIM card will take over that phone number).
      Hope this helps!

  2. Steve said:

    Hi, I want to leave Vodaphone & had asked them for a pac code, they sent me an email with a 20 digit code. As I have never dealt with this situation before I assumed this was the code, I joined ID & set up my app I D account. I went into my ID account & set about transferring my original number over to ID.
    When I tried to input the code ID said there was a problem. I have now googled the problem & found out a pac code is only 9 digits ! What was the 20 digit number Vodaphone sent me & can I still get my original number transferred to my new phone ?
    I’m grateful for any advice.

    Steve transferred a phone number from Vodafone to iD Mobile.

    1. Ken replied:

      Hi Steve,
      Thanks for your comment. That’s a very good question: I actually have no idea what the 20-digit number is (most frequently, the PAC Code is confused for a PUK code but that would only be 8 digits long rather than 20 digits long). My guess is it’s probably an account number or something along those lines, but you’ll need to check directly with the team at Vodafone.
      To get your phone number transferred to iD Mobile, you’ll need to contact Vodafone customer support once again to request a new PAC Code. This should be nine-digits long with three letters followed by six numbers (e.g. VOD 123 456).
      Hope this helps,

      1. Steve replied:

        Hi, never got to the bottom of this. I have had to cancel my contract with Vodafone & buy a new phone that was unlocked to any network. Vodaphone were a nightmare to deal with , never ever deal with them again !.

  3. Lisa said:

    Hi Ken
    Hope you can help me. I took out 2 contracts with Carphone Warehouse last weekend upgrading to a new phone with ID. When I was charging the mobiles I noticed that my boyfriend’s mobile had already been used. There were emails on from last July and data had already been used. I went back to CW had told the man who had sorted the contracts what he’d done and the reply I got was he didn’t realise it was a shop phone he’d given me and said I had to get in touch with ID to sort the data out. He gave me a new mobile but with the same sim card. They weren’t helpful at all. I rang ID the next day and told the lady what had happened and she said they should have given me a brand new phone and sim card. She was very apologetic and said if I go back to CW and tell them to ring ID they will change my contact to a better deal at the same price. During the week I got the pac code and transferred the old numbers onto the new mobiles. I went into CW today and told them I’d spoken to someone at ID and they told me they had to ring ID to get the deal changed over. While I was waiting they cancelled both contracts before they rang ID and took the phones off me. I asked if they were going to ring them and I think it was the manager , rang the number but gave me the phone as they don’t speak to ID about upgrades! So I had to sort new contracts out but because our old numbers had already been transferred we had to have new numbers! If they hadn’t cancelled the contracts beforehand and explained what had to be done to keep the numbers we wouldn’t have lost them. I’ve made a complaint against the CW store with ID and CW. The regional manager should be getting in touch with me next week. Do you know if there is any way of keeping the numbers without changing networks and cancelling the contracts again? If I have to do that we have to send the mobiles back to ID and will be without a phone again. I have never come across customer service as bad as this before. Hope you can help. Thank you.

    Lisa transferred a phone number within iD Mobile.

    1. Ken replied:

      Hi Lisa,
      Sorry to hear about the problems you experienced on iD Mobile. Unfortunately, I’m not able to help with the complaint as I don’t know all of the details of the situation. However, with regards to keeping the phone number, this is something you’ll need to ask iD Mobile to do for you. Sorry: I know this probably isn’t very helpful, but the only other alternative would be asking for a PAC Code and moving your phone number over to another network.

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