Worth knowing: this page isn't run by O2 or its parent company. For anything account-specific, you'd need to go through O2's own channels.
O2 has held onto something most rivals dropped after Brexit — completely free EU roaming on its standard plans. In 2026 it went further still, switching on the UK's first satellite layer for mobile signal.
Plans on offer
A fairly standard spread of tiers.
- SIM only on either 30-day rolling or 12-month terms
- O2 Refresh keeps the handset cost separate from the airtime line
- PAYG needs no credit check and no fixed term
Signal and speed
Independent labs, not O2's own marketing.
- 5G+ expanding through a sizeable 2026 investment round
- New satellite feature lifts effective landmass coverage from 89% to 95%
- A postcode checker exists if you want to confirm signal before switching
Going abroad
The standout feature among the seven.
- Free EU roaming on every standard plan — no add-on needed
- 49+ destinations included, with a fair-use data ceiling each month
- O2 Plus and Ultimate stretch the list further worldwide
Moving on or in
Same Ofcom rules as everywhere else.
- PAC to 65075 keeps your number when you leave
- STAC to 75075 closes the account without porting
- INFO to 85075 tells you what's left on your current deal
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