Area Code 220 – Hallstahammar-Surahammar
The phone area code for Hallstahammar-Surahammar is 220 (international format +46220). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 220
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Hallstahammar-Surahammar
Overview of Area Code 220 (Sweden)
Area code 220 is a geographic destination code within the Swedish national numbering plan, allocated under the country calling code +46. It serves the municipalities of Hallstahammar and Surahammar, located in Västmanland County in the central part of Sweden. These towns are part of the Mälardalen region, an area known for its industrial heritage and proximity to larger cities such as Västerås (approximately 30 km east) and Stockholm (about 150 km east). The code covers a well-defined administrative area, and subscribers within this region are assigned numbers beginning with the trunk prefix 0 followed by 220 when dialed domestically.
Dialing Formats
For callers within Sweden, the national format requires dialing 0220 followed by the local subscriber number, which typically consists of 5 to 7 digits. The complete national number length is 8 to 9 digits (excluding the leading trunk prefix). For example, a local number might be dialed as 0220-123 45.
For international callers, the Swedish country code +46 replaces the leading zero. Thus, the same number would be dialed as +46 220 123 45. It is important to omit the trunk prefix '0' when dialing from abroad. The international format is standardized under ITU-T E.164, ensuring global interoperability.
Geographic Coverage and Administration
The 220 area code is assigned to the Hallstahammar and Surahammar municipalities. Hallstahammar, the larger of the two, is known for its engineering and manufacturing industries, while Surahammar is a smaller town with a strong steel and engineering tradition. The code is administered by the Swedish Post and Telecom Authority (PTS), which oversees the national numbering plan. As a geographic code, it is tied to a specific physical location, and calls are routed over the public switched telephone network (PSTN) to the appropriate local exchange.
Caller Instructions
Local callers within the same area code can often dial just the subscriber number without the area code, depending on the specific local dialing rules. However, for clarity and to avoid misdialing, it is recommended to always use the full national format. Callers from other parts of Sweden must dial 0220 before the local number. International callers should use +46 220 followed by the subscriber number. No overlay codes are currently in effect for this region, meaning that the 220 code is the sole geographic code for the area.
Numbering and Future Considerations
As with all geographic numbers in Sweden, number portability allows subscribers to retain their numbers when changing operators, but the geographic significance of the code remains. The PTS periodically reviews numbering resources to ensure efficient use. For businesses and residents in Hallstahammar and Surahammar, having a local geographic number reinforces their presence in the community and facilitates local trust.