A Detailed Guide to Netherlands Phone Number Format

A Netherlands phone number varies depending on whether the call is made locally within the Netherlands or from abroad.

When dialing within the Netherlands, landline numbers include a trunk prefix, area code, and subscriber number, while mobile numbers start with the mobile prefix followed by the subscriber number.

When calling a Dutch number from outside the Netherlands, the structure includes the International Access Code (IAC) of the caller's country, the Netherlands country code, area code or mobile prefix, and the subscriber number.

1. IAC: IAC or exit code is the code used to initiate an international call from a specific country. For instance, when you call the Netherlands from the United States, you have to dial the IAC of the US (011) before the Netherlands country code. On mobile phones, you can replace the exit code with the “+” sign.
2. Country Code or International Subscriber Dialing (ISD) code: Each country has a unique country code for international dialing. The Netherlands’ country code is 31.
3. Trunk Code: The trunk code is the digit that is dialed before the area code when making a telephone call within the country. The trunk code of the Netherlands is ‘0’. However, when making international calls, omit the trunking code.

4. Area code: Landline numbers in the Netherlands have a two or three-digit area code, depending on the region. Area codes of some of the regions of the Netherlands are as follows:

   Region	Area Code
   Amsterdam (North Holland)	20
   Rotterdam (South Holland)	10
   The Hague (Den Haag)	70
   Utrecht	30
   Eindhoven	40
   Groningen	50
   Maastricht	43
   Leiden	71
   Haarlem	23
   Tilburg	13

5. Mobile Prefix: Mobile phone numbers in the Netherlands always start with 06 when dialed locally. When calling internationally, the leading 0 is dropped.
6. Subscriber Number: This is the unique set of digits assigned to each phone line. For Dutch landlines, the subscriber number is usually 7 digits, while mobile numbers are 8 digits long.

When calling within the Netherlands, including Holland, landline numbers start with a trunk prefix “0” followed by a two or three-digit area code and a 6 or 7-digit subscriber number. For mobile calls, dial the “06” prefix followed by an 8-digit subscriber number, while toll-free numbers begin with “0800” followed by a subscriber number.

In the Netherlands, landline phone numbers used for local calls start with a trunk prefix “0” followed by a two or three-digit area code that indicates the city or region. After the area code, there is a subscriber number, usually consisting of 6 or 7 digits. Together, this makes a total of 10 digits for most Dutch landline numbers.

Mobile phone numbers in the Netherlands always start with the prefix “06” when dialed locally. This prefix identifies the line as a mobile service. After the prefix, the subscriber number contains 8 digits, giving mobile numbers a fixed length of 10 digits.

Toll-free numbers in the Netherlands use the 0800 prefix and are not charged to the caller. They are 11 digits in total, with 7 digits following the prefix. These numbers are commonly assigned to customer service lines, businesses, and public services.

To call a Dutch landline internationally, dial your country’s exit code followed by the Netherlands country code, then the area code and subscriber number. Additionally, to call a Netherlands mobile number from abroad, dial the international exit code, the NL country code, then the mobile prefix and subscriber number.

For calling a Dutch landline number internationally, dial the international access code of the country you are calling from, then enter the Netherlands’ country code, area code and subscriber number.

To call a Netherlands mobile number from abroad, dial the international exit code of the country you are calling from, then enter the Netherlands’ country code, followed by the mobile prefix and subscriber number.

Common mistakes when dialing a Netherlands number include forgetting to use the trunk code (0) for domestic landline calls or mistakenly including it when calling from abroad. Additionally, mixing up area codes with mobile prefixes or using incorrect international dialing codes like the IAC or country code often leads to connection issues.

1. Leaving out the trunk code for domestic calls: Landline numbers in the Netherlands require a trunk code (0) when calling from another region. Forgetting it may result in a failed connection.
2. Including the trunk code for international calls: When calling the Netherlands from abroad, the trunk code should be dropped. Using it incorrectly can prevent your call from going through.
3. Mixing up area codes and mobile prefixes: Using a landline area code for a mobile number, or vice versa, can cause dialing errors. Always check whether the number is a mobile or a landline.
4. Incorrect international dialing: Using the wrong International Access Code (IAC) or country code can block the call. Make sure you know your country’s exit code and the Netherlands’ country code.

Before making a call to the Netherlands, identify whether the number is a landline, mobile, or toll-free to use the correct dialing format, and be mindful of the local time zone to avoid calling at inconvenient hours. Also, ensure a stable connection to prevent call issues, and be aware that international calls may have higher charges to avoid unexpected costs.

1. Identify the type of number: Determine whether the number is a landline, mobile, or toll-free. This ensures you use the correct dialing format.
2. Check the time zone: The Netherlands is in Central European Time (CET). Calling at odd hours may disturb the recipient or result in missed calls.
3. Use the correct dialing format: Domestic calls use the trunk code, while international calls require your IAC and the Netherlands country code. Using the wrong format may lead to failed connections.
4. Network Connection: Ensure you have a stable phone or internet connection before making the call, especially for international calls. Poor connectivity can result in dropped calls, poor voice quality, or delays.
5. Consider call costs: International and mobile calls may incur higher charges. Be aware of the rates to avoid unexpected expenses.

Knowing the correct Netherlands phone number format is crucial for connecting with people locally and internationally. Even when using the correct dialing format, connection problems or high international charges can still occur.