§ 18 TDDDG
Provision of End-User Data
(1)Every provider of a number-based interpersonal telecommunications service must, in compliance with the applicable data protection rules, provide end-user data under Section 17(1) to any undertaking upon application for the purpose of providing publicly accessible directory enquiry services, services for notification of an individual communication request of another user, and end-user directories.
(2)A charge may be levied for the provision of the data. The charge is generally subject to an ex post review for abuse by the Federal Network Agency in accordance with the provisions of the Telecommunications Act on the review of charges for abuse. A charge may only be subject to the charge approval obligation under the Telecommunications Act where the undertaking providing the end-user data has significant market power in the market for end-user data.
(3)The provision of data under paragraph 1 must take place without delay after an application under paragraph 1 and in a non-discriminatory manner.
(4)The data provided under paragraph 1 must be complete and prepared in terms of content and technical format, in accordance with the state of the art, in such a way that they can be incorporated without difficulty into a user-friendly end-user directory or a corresponding directory enquiry database.