Area Code 454 – Karlshamn-Olofström
The phone area code for Karlshamn-Olofström is 454 (international format +46454). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 454
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Karlshamn-Olofström
Geographic Coverage and Administrative Jurisdiction
The Swedish area code 0454 is a geographic National Destination Code (NDC) assigned to the southeastern region of Blekinge County. When dialed internationally, the code is represented as +46 454. This numbering area primarily serves the municipalities of Karlshamn and Olofström, along with their surrounding localities. Karlshamn, a coastal town on the Baltic Sea, is the administrative and commercial hub of the region, while Olofström, located inland, is known for its manufacturing industry. The code also covers smaller communities such as Mörrum, Svängsta, and Kyrkhult, which fall within the same local exchange area.
Dialing Formats and Caller Instructions
For callers within Sweden, the area code is dialed with a leading zero: 0454 followed by the local subscriber number. Local numbers in this region typically consist of 5 to 7 digits, making the full national number 8 to 10 digits (including the leading zero). For example, a local number in Karlshamn might appear as 0454-XXX XX.
For international callers, the format is +46 454 XXX XX (or 0046 454 XXX XX from countries using the international prefix 00). The leading zero is omitted when dialing from abroad. For instance, to call a Karlshamn number from the United States, you would dial 011 46 454 XXX XX.
When dialing within the same area code, it is possible to omit the area code and dial only the local subscriber number, depending on the operator's settings. However, for clarity and to avoid misdialing, it is recommended to always use the full national number, especially when calling from mobile phones.
Overlay and Numbering Plan Considerations
As of the current Swedish numbering plan, there is no overlay code for the 0454 area. The region retains its distinct geographic code, and number portability allows subscribers to retain their numbers when switching operators, but the geographic significance remains. The Swedish Post and Telecom Authority (PTS) administers the numbering plan, ensuring that geographic codes like 0454 are used exclusively for fixed-line services within the designated area.
For callers outside Sweden, it is important to note that the plus sign (+) represents the international access code, which varies by country. Always replace the plus sign with the appropriate international prefix when dialing from a landline.