I listen to aviation ATC via radio.
In their communications, if the flight crew uses Chinese, ATC also uses Chinese. Special numbers are read as "dong," "yao," "liang," and "gui."
If the control panel uses English, then the special numbers 3 and 9 are read as "tree" and "niner", respectively.
I would like to know how the numbers in a ham radio call sign are read.
For example, I'm in Zone 2, so it should be two, either "two" or "2"?
Thank you.