Area Code 594 – Zuidhorn
The phone area code for Zuidhorn is 594 (international format +31594). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 594
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Zuidhorn
Geographic Overview
The +31 594 dialing prefix is a geographic National Destination Code (NDC) assigned to the Zuidhorn telephone exchange area in the Netherlands. Zuidhorn is a town in the province of Groningen, located in the northeastern part of the country. The code serves the municipality of Westerkwartier, which was formed in 2019 through the merger of the former municipalities of Zuidhorn, Leek, Marum, and Grootegast. As a result, the +31 594 area code covers not only Zuidhorn itself but also surrounding villages such as Grijpskerk, Niekerk, Oldehove, and Briltil.
Calling Formats
When dialing a number within the Zuidhorn area, the local format is 0594-XXXXXXX (where X represents the subscriber number). The subscriber number typically consists of 6 or 7 digits, making the total national significant number (NSN) length 9 or 10 digits when including the leading '0'. For international callers, the country code for the Netherlands is +31, and the leading '0' of the NDC is dropped. Thus, the international dialing format becomes +31 594 XXXXXXX.
Dialing Instructions
- Local calls (within the 594 area): Dial the 7-digit subscriber number directly, omitting the area code. For example, to call a local number, dial 1234567.
- National calls (from other Dutch area codes): Dial 0594 followed by the subscriber number. Example: 0594 1234567.
- International calls (from abroad): Dial your country's international access code (e.g., 00 from most European countries, 011 from the US/Canada), then 31, then 594, and the subscriber number. Example: +31 594 1234567.
Overlay and Numbering Plan Considerations
As of 2024, the 594 area code is not subject to an overlay plan; it remains the sole geographic code for the region. However, number portability allows subscribers to retain their 594 numbers when switching to a different fixed-line operator or even to a VoIP provider, which means that a number with this prefix may not always be physically located in the Zuidhorn area. Conversely, new fixed-line connections in the region are typically assigned numbers from this code, subject to availability.
Regulatory and Technical Notes
The Dutch regulatory authority, the Authority for Consumers and Markets (ACM), oversees the allocation of numbering resources. The 594 code is part of the closed numbering plan of the Netherlands, where the full national number must be dialed for all calls, including local ones, when using mobile or VoIP services. For fixed-line calls, local dialing without the area code is still permitted within the same exchange area. The code is exclusively used for fixed-line services, and no mobile network operators are assigned numbers under this prefix.