Read the prediction
Use Three’s coverage checker and distinguish indoor from outdoor coverage. Network integration with Vodafone does not guarantee identical coverage for every service or device immediately.
Inspect the symptom
Record whether calls, texts or data fail and where it happens. Check service status before changing phone settings.
Handset support
Verify software and voice over 4G compatibility. A phone may show data service while calls fail if the device or configuration is unsupported.
Send useful evidence
Provide Three support with a short log of times, locations and tests. Coverage questions and billing restrictions can produce similar-looking symptoms but need different account checks.
Before you act
Confirm current details directly with the official provider. Our information is independent, general and free of a guidance fee. We do not sell or arrange services.
The official reading list