Area Code 2417 – Oslo
The phone area code for Oslo is 2417 (international format +472417). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 2417
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Oslo
Geographic Coverage and Administrative Jurisdiction
The +47 2417 prefix is a geographic number range allocated within the Oslo numbering area of Norway. Oslo, the capital and most populous city, serves as the administrative and economic hub of the country. This specific prefix is part of the 2xxx series, which is designated for fixed-line services in the greater Oslo region. Numbers bearing this prefix are typically assigned to businesses and residents within the city's boundaries, though some may be used by organizations headquartered in Oslo but operating nationally.
Dialing Formats and Number Structure
In the Norwegian national numbering plan, geographic numbers are eight digits long, with the first two digits representing the area code. For Oslo, the area code is '2', and the subscriber number is seven digits. Therefore, a +47 2417 number is followed by four additional digits, making the complete national significant number eight digits (e.g., 2417 XXXX). When dialing locally within Norway, callers must always include the area code, as Norwegian numbers are not dialed without it. The international format is +47 2417 XXXX.
Caller Instructions
For callers within Norway: Dial 2417 XXXX. No trunk prefix (like '0') is required before the area code, as Norway uses a closed numbering plan. For international callers: Dial your country's exit code (e.g., 00 from most European countries, 011 from the US/Canada), followed by Norway's country code 47, and then the eight-digit number: 2417 XXXX. For example, a caller from the UK would dial 00 47 2417 XXXX.
Overlay and Numbering Considerations
Oslo does not have an overlay code; the entire city uses the '2' area code. However, due to the high demand for numbers, the Norwegian Communications Authority (Nkom) has implemented number portability, allowing subscribers to retain their numbers when switching providers. This means that a number with the 2417 prefix may not necessarily be physically located in Oslo if it has been ported to a provider outside the region, but the number is still considered a geographic Oslo number for routing purposes.
Usage and Services
Numbers with the 2417 prefix are typically used for fixed-line voice services, including PSTN and VoIP. They are commonly found in corporate switchboards, government offices, and residential landlines. As with all geographic numbers, they are subject to standard call charges, which vary depending on the caller's operator and subscription plan. Calls to these numbers from mobile phones are charged at standard national rates.