Area Codes Finland The Area Codes of Finland: Å C H K L M N O T U V The 10 most frequently searched cities / regions or area codes: City/Town or Region Area code 1. Åland Islands 018 (+35818) 2. Central Finland (Keski-Suomi / Mellersta Finland) 014 (+35814) 3. Häme (Tavastland) 03 (+3583) 4. Helsinki (Helsingfors) 09 (+3589) 5. Kuopio 017 (+35817) 6. Kymi (Kymmene) 05 (+3585) 7. Lapland (Lappi / Lappland) 016 (+35816) 8. Mikkeli 015 (+35815) 9. North Karelia (Pohjois-Karjala / Norra Karelen) 013 (+35813) 10. Oulu (Uleåborg) 08 (+3588)