According to https://developer.apple.com/forums/thread/9171, iOS does not allow apps to read phone number from the device.
However, in the https://developer.apple.com/app-store/review/guidelines/ there is no mention about app rejection because of auto-reading phone numbers.
I want to know if auto-reading phone numbers is still not allowed / not accepted in iOS?
To be clear, I am not talking about Contacts; I am referring to the device phone number