Why would it be anything else?

It’s clearly too low a number to be °K. And since the only two valid units of measurement for temperature are Kelvin and Celsius, it must be °C.

It can be that. But it is also a medium for public forums.

There’s a good chance you are mistaken. It was not specified which type of mile they are referencing.

The only sensible mile to use would be the Scandinavian mile (10.000m). = 6000km range.

Another possibility is the nautical mile (1852m). = 1.111,2km range.

And there are plenty of other “miles” to choose from.