Area Code 455 – Karlskrona
The phone area code for Karlskrona is 455 (international format +46455). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 455
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Karlskrona
Geographic Overview and Administrative Jurisdiction
The Swedish area code 455 is a geographic National Destination Code (NDC) assigned to the Karlskrona region, located in Blekinge County on the southeastern coast of Sweden. This code serves the municipality of Karlskrona, including the city itself and its surrounding localities such as Rödeby, Jämjö, and Nättraby. As a geographic code, 455 is tied to the PSTN (Public Switched Telephone Network) infrastructure of the area, and calls to these numbers are routed based on the physical location of the line.
Dialing Formats and Caller Instructions
For callers within Sweden, the national trunk prefix 0 is used before the area code. Therefore, to call a Karlskrona landline from elsewhere in Sweden, you would dial: 0455-XX XX XX. The local subscriber number is typically 6 to 7 digits long, resulting in a complete national significant number (NSN) of 9 digits (including the leading 0). For international callers, the Swedish country code +46 replaces the trunk prefix, and the area code is used without the leading zero. Thus, from abroad, you would dial: +46 455 XX XX XX. When dialing locally within the Karlskrona area, it is often possible to omit the area code and simply dial the subscriber number, depending on the specific telephone exchange and operator settings.
Overlay Considerations and Numbering Plan
Currently, there is no overlay code for the 455 area. The Swedish Post and Telecom Authority (PTS) has not introduced an additional area code for this region, meaning that 455 remains the sole geographic code for Karlskrona. This simplifies dialing procedures and avoids the need for 10-digit dialing within the local area. However, as Sweden transitions to IP-based telephony, some operators may allow the use of the full national number even for local calls, ensuring compatibility with VoIP services.
Services and Usage
Numbers under 455 are primarily used for fixed-line telephone services, including residential and business lines. They are also used for ISDN and DSL services that are tied to physical locations. In recent years, some VoIP providers have been able to assign numbers with geographic codes like 455 to customers outside the area, but the number remains associated with the Karlskrona region for emergency services and caller identification purposes. This means that even if a business uses a 455 number from a remote location, the number retains its geographic identity, which can be important for local trust and marketing.
Practical Examples
To illustrate, a typical Karlskrona landline number might be 0455-123 456 in national format. From the United States, you would dial 011 46 455 123 456. From a mobile phone in Sweden, you can simply dial 0455-123 456 or, if the number is saved in your contacts with the international format, +46 455 123 456. Always ensure you have the correct number of digits after the area code, as subscriber numbers in Sweden can vary in length.