Bulgaria · BGR
Sliven dialing code
Sliven · Sliven
Dialing code
+359 44
From abroad
+359 44 123-4567
Dial +359, then the city code 44, then the phone number without the leading zero.
Within the country
044 123-4567
Dial 044 followed by the phone number.
How to call Sliven?
To call Sliven in Bulgaria from abroad, dial the international code +359, followed by the city code 44, then the local number without the leading zero.