To call in Algeria, the following format is used: 0 THE-AREA-CODE xx xx xx Calls within an area code 'The area code is a 2 digits number ex: 21,41,46' 021 xx xx xx Calls to Algiers from other area codes +213 yy xx xx xx Calls from outside Algeria 'yy is the area code' To call a mobile phone in Algeria ; use this format: +213 Y xx xx xx xx calls from outside Algeria Y is the Operator code ; 5 for ooredoo ,6 for Mobilis , 7 for Djezzy 0 Y xx xx xx xx To call any mobile phone number from Algeria