The key to success!
One of the 72 telephone books published by TDC Forlag is Telefonnøglen for Århus, the Århus telephone directory. With a circulation of 175,000 copies a year, there is no doubt that this is the directory which is used in Århus and the surrounding area. The citizens of Århus turn to their telephone directory 14,000 times a day looking for the telephone numbers or addresses of suppliers or private individuals. In the yellow pages section alone, people look up numbers and addresses nineteen times per page per day.

95th birthday
In 1907, the advertising agency Buchtrups Reklamebureau published Telefonnøglen for the first time. Thus, the directory will be celebrating its 95th birthday in 2002. The reason why the directory has "only" been published 91 times is due to paper rationing during the Second World War.

A four-page telephone directory
Telefonnøglen has not only grown older with time – it has also become quite a lot thicker. The first edition amounted to just four pages, while the latest directory has well over 1,000 pages.

Telefonnøglen for Århus