You can find your Business partner number on your contract or billing documents. The business partner number is a 7-digit number that begins with either the numbers ‘5’ or ‘6’. 

You can find your contract partner number on your contract or billing documents. The contract partner number is a 9-digit number. Your main contract partner number usually begins with the digits ‘14’ or ‘15’.

You will be informed about the handling of your personal data in our data protection information.