Area Code 244 – Oslo
The phone area code for Oslo is 244 (international format +47244). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 244
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Oslo
Overview of Area Code +47 244
Area code 244 is a geographic National Destination Code (NDC) within the Norwegian telephone numbering plan, assigned to the capital city of Oslo and its immediate surrounding areas. When dialed internationally, the full number appears as +47 244 XX XXX (or +47244XXXXX in a compact format). This code is part of the Oslo metropolitan numbering block, which historically used two-digit codes (02) before the introduction of the current eight-digit subscriber numbering in 1992. Today, all Norwegian numbers, including those under 244, are eight digits long when dialed locally (excluding the leading trunk prefix).
Geographic Coverage and Administrative Jurisdiction
The 244 prefix serves the central and eastern districts of Oslo, including the city center, major business hubs, and residential neighborhoods. It is administered by the Norwegian Communications Authority (Nkom) and allocated to fixed-line operators such as Telenor, Telia, and Lyse Tele. As a geographic code, it is tied to a physical location, meaning that calls to 244 numbers are routed to the PSTN exchange serving that specific area. Businesses and residents within this region typically receive numbers beginning with 244 when they subscribe to fixed-line services.
Dialing Formats and Caller Instructions
- Local calls within Norway: Dial the eight-digit subscriber number directly, e.g., 244 XX XXX. No trunk prefix (0) is required for domestic calls.
- International calls from abroad: Dial the international access prefix (00 or +), then the country code 47, followed by the eight-digit number. For example, from the UK: 00 47 244 XX XXX; from the US: 011 47 244 XX XXX.
- Calls from mobile phones: Same as local calls; simply enter the eight-digit number.
Overlay and Numbering Considerations
Oslo does not have overlay area codes; instead, the entire city uses the single country code +47 without any additional NDC for geographic numbers. This means that the 244 prefix is one of many eight-digit blocks within the +47 numbering plan. Because Norway uses a closed numbering plan, there is no distinction between local and national dialing—all domestic calls require the full eight-digit number. This simplifies dialing but also means that number portability is available, allowing subscribers to retain their 244 number when switching operators, although the geographic association remains with the original exchange.
Practical Examples
To illustrate, a typical customer service line in Oslo might be +47 244 55 789. A caller from Germany would dial 00 47 244 55 789. A local caller would simply dial 244 55 789. Always verify the complete number, as the 244 prefix is only part of the eight-digit sequence.