Area Code 45 – Mobile Network
The phone area code for Mobile Network is 45 (international format +35845). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 45
Select a central office code to view local carrier data and detailed information
Overview of Finland's +358 45 Mobile Prefix
The +358 45 prefix is a non-geographic mobile network code assigned within Finland's national numbering plan, as administered by Traficom (the Finnish Transport and Communications Agency). Unlike geographic area codes, which correspond to specific cities or regions, the 45 prefix is allocated to mobile network operators (MNOs) and mobile virtual network operators (MVNOs) serving the Finnish market. This means that numbers beginning with +358 45 are not tied to a physical location and can be used anywhere in Finland or abroad, depending on the subscriber's roaming agreements.
Finnish mobile numbers, including those under the 45 prefix, typically consist of a national significant number (NSN) of 10 or 11 digits, including the leading '0' when dialed domestically. The international format for a Finnish mobile number is +358 45 XXXXXXX, where '45' is the mobile prefix and the subsequent digits form the subscriber number. For example, a full international dialing sequence would be +358 45 1234567.
Dialing Instructions
- Domestic calls (within Finland): Dial the trunk prefix '0' followed by the mobile prefix and subscriber number: 045 1234567.
- International calls to Finland: Dial your country's exit code (e.g., 00 from most European countries, 011 from North America), then Finland's country code (+358), followed by the mobile prefix without the leading '0': +358 45 1234567.
- International calls from Finland: Dial the international exit code (00), then the destination country code, area code (if any), and subscriber number.
Number Portability and Routing
Finland implemented full mobile number portability (MNP), allowing subscribers to retain their +358 45 numbers when switching operators. Consequently, the prefix does not always indicate the current network operator; it only reflects the original allocation. When routing calls, the network queries a central database to determine the current carrier, ensuring seamless connectivity.
Usage and Availability
The 45 prefix is widely used for both personal and business mobile services, including voice, SMS, and mobile data. It is also used for machine-to-machine (M2M) communications and IoT devices. Because it is non-geographic, it is suitable for nationwide operations and virtual offices. When contacting Finnish mobile numbers from abroad, callers should be aware that charges may apply depending on their own operator's international rates. For SMS and MMS, the same international format (+358 45...) is used.
In summary, +358 45 is a versatile mobile prefix that forms an integral part of Finland's telecommunications landscape, offering reliable connectivity for millions of users.