Area Code 255 – IJmuiden
The phone area code for IJmuiden is 255 (international format +31255). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 255
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of IJmuiden
Geographic Overview
The +31 255 area code is a geographic National Destination Code (NDC) assigned to the coastal town of IJmuiden and its immediate surroundings in the province of North Holland, Netherlands. IJmuiden is an important seaport and industrial hub located at the mouth of the North Sea Canal, serving as the seaward gateway to Amsterdam. The code covers the town itself, the nearby villages of Velsen-Noord, Velsen-Zuid, and parts of the surrounding dune and polder landscape. As a geographic code, it is tied to a fixed PSTN exchange area, and calls to this code are routed based on the physical location of the line.
Dialing Formats
For callers within the Netherlands, the national trunk prefix 0 is used before the area code, followed by the subscriber number. The complete national format is 0 255 XX XX XX (where X represents the local subscriber digits). For example, a local IJmuiden number might be 0 255 12 34 56.
For international callers, the country code +31 is used, and the leading zero of the national prefix is dropped. The international format becomes +31 255 XX XX XX. Thus, the same number would be dialed as +31 255 12 34 56 from abroad. When dialing from a mobile phone within the Netherlands, the national format is typically used, but the international format is also accepted.
Local and Regional Significance
IJmuiden is known for its large fishing fleet, the IJmuiden sea lock complex (the largest in the world), and steel production at the Tata Steel plant. The area code serves both residential and business lines, including maritime-related enterprises, logistics companies, and local government offices. Because it is a geographic code, numbers are not portable to other regions, but they can be ported between fixed-line operators within the same exchange area.
Overlays and Numbering
Currently, there is no overlay code for the IJmuiden area; the 255 code is the sole geographic code for this region. Subscriber numbers are typically seven digits long, but the total length of a national significant number (NSN) is nine digits (including the area code). The Netherlands' numbering plan is regulated by the Authority for Consumers & Markets (ACM), and all geographic codes are assigned according to ITU-T E.164 recommendations.
Caller Instructions
If you are calling from outside the Netherlands, always replace the leading zero with +31. For example, to call a number in IJmuiden from the United States, you would dial 011 31 255 12 34 56. From within the Netherlands, simply dial 0255 12 34 56. Be aware that calls to geographic numbers are typically charged at standard landline rates, depending on your telecom provider.