One SIM. The UK at home, 100+ countries abroad.
Unlimited 5G data, calls and texts at home. Land in any of 100+ included countries and your phone just works - same allowance, same speeds, no daily passes, no surprise charges.
Coverage isn't a map - it's a guarantee.
Wherever any major UK licensed network has signal, you have signal. Your SIM hops between them in real time, picking the strongest available - so the union of every operator's coverage map is yours.
Check coverage at your postcode.
We'll tell you whether the multi-network signal guarantee applies at your address - in plain English, not a marketing map.
UK · genuinely unlimited 5G
Full 5G coverage on the Boundless network across UK cities, with native fall-back to 4G in rural areas. No throttling once you pass a hidden allowance.
EU · roams as if you were home
Same allowance, same speeds, no daily passes. The phone in Lisbon behaves like the phone in Leeds.
Beyond the EU · 100+ countries included
Roaming included as standard across 100+ countries on every continent - including most popular travel destinations.
A small list of restricted territories applies
A handful of countries are excluded from inclusive roaming due to sanctions, regulatory restrictions, or the lack of a viable roaming partner. The full and current list will be published on this page at launch and is referenced in the contract you sign. If a destination matters to you, ask us before you sign up.
Ask about a countryFull coverage map
The interactive UK + roaming coverage map is launching with the public rollout. In the meantime, ask us directly and we'll confirm coverage for any postcode or destination.