Federal Network Agency for Electricity, Gas, Telecommunication, Post and Railway

Bonn office (headquarters):
Tulpenfeld 4, 53113 Bonn,
Postal address: Postfach 80 01, 53105 Bonn,
Federal Republic of Germany
Telephone: +49 228 14-0 (switchboard)
Fax: +49 228 14-8872
E-Mail: Poststelle 
Getting to the Federal Network Agency - Bonn office

Mainz office:
Canisiusstraße 21, 55122 Mainz
Postal address: Postfach 80 01, 55003 Mainz,
Federal Republic of Germany
Telephone: +49 6131 18-0
Fax: +49 6131 18-5600
How to get to the Federal Network Agency - Mainz office

Berlin office:
Fehrbelliner Platz 3, 10707 Berlin
Federal Republic of Germany
Telephone: +49 30 22480-0
Fax: +49 30 22480-180

Saarbrücken office:
Talstraße 34-42, 66119 Saarbrücken,
Federal Republic of Germany
Telephone: +49 681 9330-0
Fax: +49 681 9330-700