Inside this article 3 sections
01 / Everyday use
Reading a prediction
A coverage map models expected service under assumptions. Population coverage measures reach to people rather than every square mile. A remote road and a city centre can therefore contribute very differently to a national claim.
Inspect indoor and outdoor views separately if available. Building materials, position, device bands and local conditions affect the result. A map is evidence to investigate, not a guarantee.
02 / Everyday use
Run a practical check
At the important location, disable Wi-Fi and select the intended data SIM. Try a call in both directions, an ordinary text and the kind of internet task you need. Repeat during busy hours. Do not operate a phone while driving.
Keep notes on date, time, location and task. Avoid publishing private addresses. A repeated failure deserves attention; one isolated failure could coincide with a temporary outage or application problem.
03 / Everyday use
Make a local judgement
Good bars with slow data can reflect capacity rather than missing radio coverage. Strong outdoor service and weak indoor service can reflect the building. A failure on only one phone may point to device compatibility.
Decide whether the shortcomings are tolerable. A service that works in nine locations may still be wrong if the tenth is the place you work every day. We do not publish our own nationwide network measurements.