German landline phone numbers vary in length: area code + local number can total between 5 and 11 digits (cell phone numbers comprise 10 or 11 digits and do not use area codes)
some suburban areas of cities marked with # use different area codes
click here
- for a more detailed list of German area codes
Phone books:
Das Telefonbuch
- German Phone Book, includes both residential and commercial listings, in German
