Does the Main Company Number require a phone number license?

Hi everyone,

I hope the subject says it all - I would like to know if "Main Company Number" consumes 1 phone number license or may be it doesn't because it's the "Main Company Number" and not a user assigned phone number so possibly we get a free bee? 

To illustrate which license exactly that is - see screenshot; we don't have that many phone number licenses hence my question whether we need to consider one specifically for "Main Company Number"

Thank you for your guidance!