Area Code 82 – Oulu
The phone area code for Oulu is 82 (international format +35882). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 82
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Oulu
Geographic Coverage and Administrative Jurisdiction
The Finnish area code 82 is a geographic National Destination Code (NDC) assigned to the city of Oulu and its surrounding region in Northern Finland. Oulu serves as the administrative capital of the North Ostrobothnia region and is one of Finland's most significant technology and education hubs. The code covers the city center, suburban districts, and nearby municipalities that form part of the Oulu urban area. As a geographic code, it is tied to a specific PSTN exchange area, although modern telecommunications infrastructure allows for some flexibility in routing.
Dialing Formats and Caller Instructions
When calling a landline in Oulu from within Finland, subscribers must dial the trunk prefix 0, followed by the area code 82 and the subscriber's 5- to 7-digit local number. For example, a local number such as 1234567 would be dialed as 082 1234567 from anywhere in Finland. From abroad, callers must use the international access prefix (typically 00 or +), followed by Finland's country code 358, then the area code without the leading zero: +358 82 1234567. It is important to note that the area code is an integral part of the national significant number and must always be included when dialing from a mobile phone or another fixed line outside the local exchange area.
Numbering Plan and Overlay Considerations
Finland's numbering plan follows ITU-T E.164 recommendations. The area code 82 is part of the geographic numbering scheme, and no overlay codes have been introduced in Oulu; the region continues to use the single area code. Subscriber numbers within the 82 code can vary in length, and the total length of the national significant number (NDC + subscriber number) is typically 8 to 9 digits. This variation is managed by the Finnish Transport and Communications Agency (Traficom), which oversees number allocation to ensure efficient use of the numbering space.
Technical Routing and Modern Usage
While originally designed for traditional PSTN services, the 82 code is now used by various operators offering fixed-line services, including VoIP-based solutions. Calls to these numbers are routed over the public switched telephone network, and number portability allows subscribers to retain their geographic number when changing service providers, even if they move to a different technology platform. However, the geographic association remains for billing and emergency services purposes. For international callers, it is essential to replace the trunk prefix with the +358 country code to ensure proper routing. As with all Finnish geographic codes, calls to 82 numbers are typically charged at standard domestic rates when dialed from within Finland, while international rates apply from abroad.