In this section, we’ll help you to change mobile network providers. We’ll also show you how to upgrade to the latest handset. Keep your old phone number & transfer your old data.

Have you decided to change either your mobile network or mobile handset? Whether it’s one or the other, this section of our website aims to help you out. For anyone changing network, we’ll show you how to keep an old phone number and also how you can unlock a smartphone for use on different networks. For those changing handset, we’ll show you how to get a new SIM card and also how to transfer your data to a brand new device.

Please select an article to begin reading more:

PAC Codes: Transfer Your Mobile Number To A New Network

How to transfer your mobile phone number from one network to another: a step-by-step guide to using a PAC Code.

Unlocked Smartphones: Network Policies & Where To Buy

Everything you need to know about mobile unlocking. Find out which networks lock, how to unlock your handset and where to buy a new unlocked smartphone.

How to replace your SIM Card with a Micro SIM or Nano SIM

Newer handsets typically require a Micro SIM or Nano SIM. Therefore, if you're changing handsets, you may also need to change the size of your SIM card at the same time.

Cancelling Your Mobile Contract Early: Exit Fees & Alternatives

If you'd like to cancel a mobile contract early, you'll normally need to pay an early termination fee. Find out the early exit fee on each UK network.

How To Use Up Your Remaining Pay As You Go Credit

Find out how to use up your remaining Pay As You Go credit when moving to another network.

How To Transfer Your Data To A New Smartphone

Are you upgrading to a newer smartphone? Find out how to transfer your old data including phone numbers, text messages, photos and apps.

Your Comments 13 so far

We'd love to hear your thoughts and any questions you may have. So far, we've received 13 comments from readers. You can add your own comment here.

  • I wondered if you could help me I purchased an iPhone 6s directly from apple.co.uk last year I’m wondering if I can use a Sim card I purchase in Japan when I go there next year.
    I know the phone is unlocked but I don’t know if it internationaly unlocked can you help? thank you

    • Hi Mark,
      Yes – the great news is your iPhone is also unlocked for use internationally. You can use it abroad in other countries with a different SIM card without issue.
      Ken

      • Thank you this has really helped this will save me a fortune when I have to just open Google maps
        Because data costs are insane for visiting Japan.. 🙂

  • Hi Ken
    Thank you for your very informative & interesting site.
    I have recently had to leave Tesco Mobile as the service this year has deteriorated a lot (no signal for 3 months of the year!) and have switched to Asda pay as you go as their tariff is really good, but was disappointed to find out I cannot send short code texts. I now find that a lot of networks don’t allow you to do this. Can you recommend a reasonably priced network that does allow you to send 5 digit texts?

    • Hi Jenny,
      Thanks for your comment. Unfortunately, I couldn’t give you any specific advice about five-digit short codes (I’m not sure whether there’s a list of which mobile networks support this functionality?). I suppose my first suggestion is to see if you can find an alternative number (e.g. is there a regular landline or mobile number you could text instead?). If not, it might be the case you’ll need to go with one of the major networks who’ll probably be more likely to support this functionality.
      Ken

  • Hi ken
    thanks for all the info on mobile phones its one of the best I have seen on line I have just joined ee mobile on pay as you go. do I have to use the mobile within 6months or I will loose my number and money on the account
    thanks for your help
    john sanger

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