Only calls within the city are local, even though the entire province shares the same area code. When dialing inside of the city no area code is required unless you are using a cell phone.
For using a cell phone to dial a landline you would dial as such: 0513 + number.
For using a cell phones to dial another cell phone: 0 + area code + number
Note: SIM Cards
Airports and hotels sell tourists SIM card with or without Internet service for a nominal price and it works for 60 days.