Area Code 55 – Kymi
The phone area code for Kymi is 55 (international format +35855). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 55
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Kymi
Geographic Coverage and Administrative Jurisdiction
The Finnish national destination code 55 is a geographic area code assigned to the Kymi region, historically known as the Kymenlaakso province in southeastern Finland. This area code covers the city of Kotka and its surrounding municipalities, including Hamina, Pyhtää, and Virolahti, along the Gulf of Finland coast. The region is part of the Kymenlaakso administrative district, which is known for its maritime industry and paper mills. The code is administered by the Finnish Transport and Communications Agency (Traficom) under the national numbering plan.
Dialing Formats and Caller Instructions
For local callers within Finland, the area code is dialed with a leading 0 before the subscriber number. For example, to call a landline in Kotka, you would dial 055 XXXXXXX (where XXXXXXX is the 7-digit local subscriber number). For international callers, the Finnish country code +358 is used, and the leading zero is dropped. Thus, the same number would be dialed as +358 55 XXXXXXX from abroad.
It is important to note that the area code 55 is not an overlay; it is the sole geographic code for the region. Subscriber numbers within this code are typically 7 digits long, but the total length of a national significant number (NSN) is 8 to 9 digits, including the area code. The exact format may vary depending on the specific service provider, but the standard format is 055-XXXXXXX for domestic calls and +358 55 XXXXXXX for international calls.
Numbering and Routing Considerations
Geographic codes in Finland are used for fixed-line services, but they can also be used for VoIP services that are tied to a physical address. However, number portability allows subscribers to retain their geographic number when moving to a different operator, even if the service is provided over a non-geographic network. This means that a number with the 55 prefix might not always be physically located in the Kymi region, but it is still associated with that geographic area for regulatory and emergency services purposes.
For businesses and residents in the Kymi region, having a local number with the 55 prefix can enhance local presence and trust. Callers from other parts of Finland will incur standard national call charges, while international callers will be charged according to their operator's international rates. As with all Finnish numbers, the maximum call duration and billing are determined by the caller's service provider.