Area Code 27 – Turku/Pori
The phone area code for Turku/Pori is 27 (international format +35827). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 27
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Turku/Pori
Geographic Coverage and Administrative Jurisdiction
The Finnish area code +358 27 is a geographic National Destination Code (NDC) assigned to the Turku and Pori region, located on the southwestern coast of Finland. This area encompasses the city of Turku (Åbo in Swedish), the historical capital and major port city, as well as Pori (Björneborg), and the surrounding municipalities. The code covers the administrative regions of Southwest Finland (Varsinais-Suomi) and Satakunta, including cities such as Raisio, Kaarina, Naantali, and Rauma. Geographically, this is one of Finland's most significant regions outside the Helsinki metropolitan area, with Turku serving as a key economic and cultural hub.
Dialing Formats and Number Structure
Within Finland, calls to numbers in the 027 area code are dialed using the trunk prefix 0 followed by the area code and the subscriber number: 02 7XX XXXX (the area code is 02, and the 7 is the first digit of the subscriber number, but in international format, the entire sequence is represented as +358 27). For example, a local number might be 02 7123 456. When dialing from abroad, you drop the leading 0 and use the country code: +358 27 123 456. Subscriber numbers in this area typically consist of 5 to 7 digits, resulting in a total national significant number (NSN) length of 8 to 9 digits, excluding the trunk prefix.
Overlay and Numbering Plan Considerations
Finland's numbering plan is regulated by Traficom. The 02 area code is a geographic code, and no overlay codes have been introduced for the Turku/Pori region; the 02 code remains the sole geographic code for this area. However, number portability allows subscribers to retain their numbers when changing operators, but geographic numbers are generally tied to the original geographic location. For callers, it is important to note that the leading 0 is only used for domestic calls; international callers must use the +358 country code.
Caller Instructions
For local callers within Finland: dial 02 followed by the subscriber number (e.g., 02 7123 456). For international callers: dial your country's international access code (e.g., 00 from most European countries, 011 from the US/Canada), then 358, then 27, and then the subscriber number (without the leading 0). For example, from the US, you would dial 011 358 27 123 456. Always verify the number length, as some numbers may have fewer digits.