The traffic access code (TAC) is part of the national and international telephone number
. In the case of the national telephone number, the traffic selection digit is a zero
thatmust be dialed before the area code. For example, when dialing into the Munich local network, the subscriber
must dial a zero before the local network code (89): 089. The same applies to all other dialing into local networksnumbers have two zeros (00) as the international traffic code (VAZ), which must be dialed before the country code. In the case of Austria, whose country code is 43, the subscriber must dial 0043 when dialing into the Austrian telecommunications network.