If you live in tall building in the area, then your phone reception usually is service or non-service, especially within coverage area under 3F. You have to add a strong -wave kit(range extender kit) at the inside and top.

If a bus or a car is driving to high mountains, to high attitudes, or to remote villages, then you will find that your phone showed no any services. 

If you work on the ship/cruise, then your phone are absolutely no service. Then satellite phone calls are really expensive.

The Starlink is developing a low latency, broadband internet system to meet the needs of consumers across the globe. Within each coverage area.

These problems are solved, and the price is reasonable. That's why people say Elon Musk is a genius.

I downloaded an app-Radio Garden available via satellite system probably.