Area code needed for Aberdeen local landline phone calls
Phone users in Aberdeen now have to dial the full 11-digit telephone number to make a local call on a landline.
Ofcom has introduced the change because the city is one of several across the UK which is running out of numbers.
Residents in Aberdeen, Bradford, Brighton, Middlesbrough and Milton Keynes now have to include an area code for all landline calls.
The move should create an extra 200,000 numbers per area, according to Ofcom.
The 01224 area code will be required for calls in Aberdeen itself and areas to the west including towns such as Westhill.
Ofcom said that would be less disruptive than adding an extra digit to existing telephone numbers.
Anyone forgetting to dial the extra numbers will hear a recorded message.
A similar change was piloted in the Bournemouth area in 2012 and 94% residents were not concerned, it said.
The change will not affect the price of a local call.