Area Code 643 – Hallen-Oviken
The phone area code for Hallen-Oviken is 643 (international format +46643). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 643
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Hallen-Oviken
Overview of Area Code 0643
Area code 0643 is a geographic National Destination Code (NDC) within the Swedish national numbering plan, assigned to the region encompassing Hallen and Oviken in Jämtland County (Jämtlands län). This area is situated in the central part of Sweden, near the Norwegian border, and includes localities such as Hallen, Oviken, and surrounding villages. The code is part of the larger 06xx series used for geographic numbering in the northern and central parts of the country.
Geographic Coverage and Administrative Jurisdiction
The 0643 area falls under the administrative jurisdiction of the Jämtland County Administrative Board and is served by the municipality of Berg (Bergs kommun). The region is characterized by its scenic landscapes, including lakes and forests, and has a low population density. Key settlements within this code include Hallen, a village located on the shores of Lake Storsjön, and Oviken, a smaller community nearby. The area is primarily residential and agricultural, with local businesses and services catering to the community.
Dialing Formats and Usage
When calling a landline number within the 0643 area, the national dialing format is 0643-XXXXX, where the local subscriber number consists of five digits. For international callers, the format is +46 643-XXXXX (or +46 643 XXXXX). Note that the leading '0' in the area code is dropped when dialing from abroad. For example, a local number might be 0643-12345, which would be dialed as +46 643 12345 from outside Sweden.
Within Sweden, callers from other regions must dial the full national number including the trunk prefix '0'. For instance, a caller from Stockholm would dial 0643-12345. Local calls within the same area code can often be made using just the five-digit subscriber number, but this depends on the operator's dialing plan; it is always safe to use the full national format.
Overlay and Numbering Considerations
As of the latest ITU-T E.164 guidelines and Swedish Post and Telecom Authority (PTS) regulations, there are no overlay codes for 0643. The area code is exclusively geographic, and number portability is available for fixed-line services, allowing subscribers to retain their numbers when changing operators within the same geographic area. However, geographic numbers cannot be ported to non-geographic services or to other geographic areas without changing the area code.
Caller Instructions
For local callers within the 0643 area, dialing the five-digit subscriber number may suffice for local calls, but using the full national format is recommended. For international callers, always use the international prefix (e.g., 00 from most European countries, or +) followed by 46, then the area code without the leading zero, and the subscriber number. Ensure you have the correct number of digits; the total length of a Swedish geographic number is 8 to 9 digits (including the area code without the leading zero).