Area Code 75 – Zaandam
The phone area code for Zaandam is 75 (international format +3175). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 75
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Zaandam
Overview of Area Code +31 75
Area code +31 75 is a geographic National Destination Code (NDC) assigned to the Zaanstad region in the Netherlands, with Zaandam as its principal city. This code covers the Zaan district, including towns such as Krommenie, Wormerveer, and Assendelft. The region is part of the province of North Holland, situated just northwest of Amsterdam.
Dialing Formats
When calling a landline in this area from within the Netherlands, you must use the full national number, which includes the leading 0 (trunk prefix) followed by the area code and the subscriber number. For example, a local number might be dialed as 075-1234567. Internationally, callers should omit the leading zero and dial +31 75 1234567 or 0031 75 1234567 from most countries. The total number length after the country code is 9 digits (including the area code without the leading zero).
Geographic Coverage and Administration
The +31 75 area code is administered under the Dutch national numbering plan, which follows ITU-T E.164 recommendations. It is a geographic code, meaning that the tariff and routing are based on the physical location of the subscriber's exchange. The region is served by fixed-line operators such as KPN, Vodafone, and various alternative carriers. The area code is not overlaid with another code, so local calls within the Zaan region can be made using the 7-digit subscriber number alone if you are within the same local calling area, but for clarity and due to number portability, it is recommended to always dial the full national number.
Caller Instructions
For local callers within the Netherlands: dial 075 followed by the 7-digit subscriber number. For callers from outside the Netherlands: dial your international access code (e.g., 00 from most European countries, 011 from the US/Canada), then 31, then 75, and then the 7-digit subscriber number. Remember not to include the leading 0 when dialing from abroad.
Number Portability and Modern Usage
As with all Dutch geographic numbers, subscribers may port their numbers to other operators or even to VoIP providers, but the number remains associated with the geographic area for administrative purposes. This means that a call to a +31 75 number may be routed to a VoIP server anywhere, but the caller is still charged as a national call to a geographic number. Businesses in Zaandam often use these numbers to maintain a local presence, and many have adopted VoIP technology to manage their communications.