area code

British Word:

dialling code

dialling code noun it is a series of numbers which must be dialled before another number can be dialled. országhívó és körzetszám, körzeti hívószám.

American Word:

area code

area code noun usually 3-digit number that identifies each telephone service area in the country (as in the US and Canada) körzetszám, körzeti hívószám.