Area Code 2382 – Oslo
The phone area code for Oslo is 2382 (international format +472382). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 2382
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Oslo
Overview of Area Code 2382
Area code 2382 is a geographic prefix within the Norwegian national numbering plan, specifically allocated to the capital city, Oslo. In accordance with ITU-T E.164 recommendations, the full international number format for subscribers in this area is +47 2382 XX XXX, where the country code for Norway is +47. The prefix is a component of the National Destination Code (NDC) for Oslo, which is integrated into the subscriber number rather than being a separate trunk prefix.
Coverage and Administrative Jurisdiction
This code serves the central and surrounding districts of Oslo, the administrative capital of Norway. Oslo is the economic and governmental hub of the country, hosting the Storting (parliament), the Royal Palace, and numerous corporate headquarters. The geographic area covered by 2382 includes mixed residential and commercial zones, with a high density of businesses, government institutions, and cultural venues. Subscribers within this code are typically connected via the public switched telephone network (PSTN) or fixed-line VoIP services that are geolocated to the Oslo region.
Dialing Formats and Caller Instructions
For local callers within Norway, the number is dialed as an 8-digit sequence: 23 82 XX XX. No trunk prefix (such as '0') is required, as Norway uses a closed numbering plan where the NDC is always included in the national number. For international callers, the full format is +47 2382 XX XXX (or 0047 2382 XX XXX from countries using the international prefix 00). When calling from a mobile phone, it is advisable to use the international format with the plus sign to ensure proper routing.
Overlay and Numbering Considerations
Oslo has multiple area codes, including 21, 22, 23, 24, and others, which serve as overlays for the same geographic region. This means that a single physical location may be assigned numbers from different codes. Consequently, local calls within Oslo may require 8-digit dialing even for numbers with different area codes, as the NDC is part of the subscriber number. There are no separate local dialing prefixes, and the Norwegian Communications Authority (Nkom) regulates the allocation of these codes to ensure sufficient numbering capacity.
Practical Usage and Examples
Businesses and residents in Oslo use numbers like +47 2382 45 678 for their fixed-line services. When calling from abroad, one would dial the international access code (e.g., 00 from most European countries), followed by 47, then the 8-digit number. For example, from the United States, you would dial 011 47 2382 45 678. It is important to note that numbers in this range are not mobile or toll-free; they are subject to standard fixed-line tariffs, which may vary depending on the caller's operator and subscription plan.