Does this have the same connotation in German of being a telephone number that is no longer use, as it does in English?
Colloquially, do Germans simply use 'Nummer' as 'Phone number'? Or is it 'Telefonnummer'? Just curious.
Just as in English, you can use "Nummer" if the context is clear.
Difference between alt and alte?
Its the same word, but "alte" is used before nouns that take the female gender. Or if you have a das or der before it. Like: "Der alte Hund", or "Das alte Haus".
Did anyone else hear it pronounced as "Das ist der alter Telefonnummer?" rather than with "die alte"?
On both male and female voices, I hear "die alte".