How to dial a phone number in Brno Czech Republic?
From outside Czech Republic, a caller would dial their international call prefix (typically 00 in Europe and 011 in North America), followed by 420 (the country code for
Czech Republic), then 54 the 2-3 digit area code of the place you're calling (Brno) minus the trunk code '0', and finally the local number minus the trunk code '0'. All local telephone numbers dialled within Czech Republic must use the leading '0' and the area phone code, even when calling locally.