German phrase
Wie ist die Netzabdeckung in ~?
Meaning
What's the network coverage like in ___
When to use it
It asks about mobile coverage. It is a natural way to check reception while traveling or in town.
Example dialogue
Wie ist die Netzabdeckung in Berlin?
What's the network coverage like in Berlin?
In der Innenstadt ist sie meist gut, in den Außenbezirken oft schwächer.
It is usually good in the city center, but often weaker in the outer districts.