Area Code 520 – Trollhättan
The phone area code for Trollhättan is 520 (international format +46520). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 520
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Trollhättan
Geographic Overview
The Swedish area code 520 is a geographic National Destination Code (NDC) assigned to the municipality of Trollhättan, located in Västra Götaland County on the west coast of Sweden. This region is part of the historical province of Västergötland and is known for its industrial heritage, particularly the former Saab Automobile plant. The code covers Trollhättan city and its immediate surroundings, including smaller localities such as Sjuntorp and Velanda. The administrative jurisdiction falls under Trollhättan Municipality, which is the largest urban area in the Fyrbodal region.
Dialing Formats
When calling a Trollhättan landline from within Sweden, the national trunk prefix 0 is used before the area code, followed by the subscriber number. The complete national format is:
- 0520-XX XX XX (from within Sweden)
For international callers, the Swedish country code +46 replaces the leading zero. The international format is:
- +46 520 XX XX XX (from abroad)
For example, a local number in Trollhättan might be 0520-12 34 56 when dialed domestically, or +46 520 12 34 56 when dialed from another country. Note that the area code is an essential part of the number; it cannot be omitted even for local calls within Trollhättan, as Sweden uses closed dialing plans for geographic numbers.
Overlay and Numbering Considerations
As of the latest ITU-T E.164 national numbering plan updates, there is no overlay code for the 520 area. The code is exclusively used for geographic landline services, and all subscriber numbers within this area have a length of 6 to 7 digits after the area code, depending on the specific exchange. The total number length for a complete international number is 8 to 9 digits after the country code, which is standard for Swedish geographic numbers.
Caller Instructions
For local callers within Sweden: simply dial 0520 followed by the subscriber number. For callers from other Swedish regions, the same format applies, as the trunk prefix 0 is always required for domestic long-distance calls. For international callers, always use the plus sign (+) or the international access prefix of your country, followed by 46 (Sweden's country code), then 520 and the subscriber number, omitting the leading zero.
It is important to note that while many Swedish businesses and residents have migrated to VoIP or mobile services, numbers under the 520 code remain tied to the geographic location of Trollhättan. This means that the call routing is based on the physical location of the line, and emergency services (112) will be dispatched to the registered address associated with the number.