Area Code 63 – Akershus
The phone area code for Akershus is 63 (international format +4763). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 63
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Akershus
Geographic Coverage and Administrative Jurisdiction
The Norwegian country code +47 is paired with the geographic area code 63 to route calls to the southern portion of Akershus county, a region that historically encompassed the municipalities of Bærum, Asker, and parts of Røyken (now merged into Asker). This area lies immediately west and southwest of Oslo, forming part of the Greater Oslo metropolitan region. The code 63 is allocated under the Norwegian Communications Authority (Nkom) numbering plan as a geographic destination code, meaning that the tariff and routing are based on the physical location of the called line.
Primary Cities and Local Dialing Format
Key towns served by the +47 63 prefix include Sandvika (the administrative center of Bærum), Asker, and the surrounding suburban districts. These areas are characterized by a mix of residential neighborhoods, commercial hubs, and technology parks. Within Norway, calls to numbers beginning with 63 are dialed using the national format: 63 XX XX XX (8 digits in total after the trunk prefix). The leading '0' is not used in Norwegian domestic dialing; instead, callers simply dial the 8-digit subscriber number. For example, a local call to a business in Sandvika would be placed as 63 80 00 00.
International Dialing Instructions
For callers outside Norway, the international format is +47 63 XX XX XX. The plus sign represents the international access prefix (00 in most countries), followed by the Norwegian country code 47, then the area code 63 without any leading zero, and finally the 8-digit subscriber number. For instance, a caller from the United States would dial 011 47 63 XX XX XX, while a caller from the United Kingdom would dial 00 47 63 XX XX XX. It is important to note that Norway uses a single country code for both fixed and mobile services, and there are no trunk prefixes or area code changes when dialing domestically.
Overlay and Numbering Considerations
As of the current Nkom numbering plan, there is no overlay code for the 63 area. The geographic area codes in Norway are generally not overlaid, and the 63 code remains exclusive to the southern Akershus region. However, number portability allows subscribers to retain their 63 numbers even if they relocate to other parts of Norway, which can occasionally lead to a non-geographic association. Callers should be aware that the called party may be physically located elsewhere, but the tariff remains based on the original geographic assignment unless otherwise specified by the carrier.
Practical Guidance for Callers
When placing a call to a 63 number from a mobile phone within Norway, no additional prefix is required; simply dial the 8-digit number. For international callers, always include the +47 country code and drop any leading zero that might appear in local directories. For example, if a local listing shows 63 12 34 56, the international format is +47 63 12 34 56. This ensures proper routing through the international gateway.