Area Code 224 – Sala-Heby

Geographic Coverage and Administrative Jurisdiction

The Swedish area code +46 224 is a geographic National Destination Code (NDC) allocated to the Sala-Heby region, located in the historical province of Västmanland in central Sweden. The code serves the municipalities of Sala and Heby, which are part of Västmanland County and Uppsala County respectively. Sala, the largest town in the area, is known for its historic silver mine, while Heby is a smaller municipality with a mix of rural and suburban communities. The code covers a predominantly rural area with several smaller localities, including Ransta, Västerfärnebo, and Möklinta.

Dialing Formats and Number Structure

Within Sweden, calls to numbers in the Sala-Heby region are made using the format 0224-XXXXX, where the leading '0' is the trunk prefix. The subscriber number length is typically five digits, resulting in a total national significant number (NSN) length of 8 digits (excluding the leading '0'). When dialing from abroad, the international format is +46 224 XXXXX, omitting the trunk prefix '0'. For example, a local number might be 0224-12345 domestically, which becomes +46 224 12345 internationally.

Overlay Considerations and Numbering Plan

Sweden's numbering plan is administered by the Swedish Post and Telecom Authority (PTS). The 0224 area code is a dedicated geographic code with no overlays currently in place, meaning that local calls within the Sala-Heby area do not require an area code when dialing between local subscribers. However, for calls from other parts of Sweden, callers must dial the full national format including the trunk prefix and area code. As with all Swedish geographic codes, the introduction of VoIP and mobile substitution has not altered the fundamental structure of this code, but the number of fixed-line subscriptions has declined in favor of mobile and IP-based services.

Caller Instructions

• Local callers (within Sala-Heby): Dial only the five-digit subscriber number, e.g., 12345.
• National callers (from other Swedish regions): Dial 0224 followed by the subscriber number, e.g., 0224-12345.
• International callers: Dial the international access prefix (e.g., 00 from most countries) followed by 46 (Sweden's country code), then 224 and the subscriber number, e.g., 00 46 224 12345. Note that the leading '0' of the national trunk prefix is omitted.

Regulatory and Technical Notes

Geographic codes in Sweden are not portable outside their designated area, and numbers under 0224 are typically assigned to fixed-line services, though some VoIP providers may offer numbers with this code for business or residential use. The code is part of the E.164 international numbering plan, ensuring global interoperability. For businesses operating in Sala-Heby, having a local geographic number can enhance local presence and trust, while for international callers, understanding the correct dialing format is essential to reach customers or partners in this region.