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    Phones

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    • Peace of mind with O2 Insure
    • Tech news and inspiration

    Saving you money

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    • Sell with O2 Recycle
    • Auto-save plans
    • Multisave discounts
    • Virgin Media and O2 benefits

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    • Pick your O2 Extras
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    Stay connected

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SIMs and numbers

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SIMs and numbers

Learn about activating your SIM and downloading your eSIM to your phone

Activating and using your SIM

Get up and running in no time

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eSIM

Everything you need to know

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IMEI explained

About your device’s unique IMEI number

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Unblock your phone

Here’s what you need to know

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