Independent guidance: This page is not operated by Three Mobile or its parent company. For official account matters, contact Three directly through their own channels.
799/1,000
Independent Score
Three UK launched in 2003 as the UK's first 100% 3G network, and following its 2025 merger with Vodafone, operates as part of VodafoneThree. Three's standout feature is Go Roam, its tiered worldwide roaming allowance.
Plans
SIM only, pay monthly, and PAYG options.
- SIM only tiers: Lite, Value, Complete — differ mainly by roaming included
- Pay monthly bundles a handset over 24 months
- New plans from April 2026 carry a speed cap (100 Mbps Pay Monthly, 25 Mbps PAYG)
Coverage & 5G
Independent test results, not marketing claims.
- Some of the fastest peak 5G speeds recorded in UK testing
- Overall 2026 independent score: 799/1,000 (3rd among major networks)
- Coverage checker tool available to confirm signal at your postcode
Roaming (Go Roam)
The widest worldwide roaming of any major UK network.
- Europe tier: 49 destinations
- Around the World tier: 71 destinations
- Extended tier: 163 destinations, with a 12GB/3,000-min fair-use cap
Switching
Standard Ofcom-protected process.
- Text PAC to 65075 to keep your number when leaving
- Text STAC to 75075 to leave without porting
- Text INFO to 85075 to check your contract first
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