The Netherlands Phone Number Format
Country code +31 · ISO NL
How to format, dial, and validate The Netherlands phone numbers, with live examples.
Country Code
+31
National Prefix
0
International Prefix
00
Mobile Portability
Yes
Try it now
Pre-filled with a valid fixed line number for The Netherlands. Edit it and click "Try It" to see the parsed result.
Number Types & Example Formats
Each The Netherlands phone-number type supported by libphonenumber, with a real example formatted three ways.
| Type | Length | National | International | E.164 |
|---|---|---|---|---|
| Fixed Line | 9 digits | 010 123 4567 | +31 10 123 4567 | +31101234567 |
| Mobile | 9 or 11 digits | 06 12345678 | +31 6 12345678 | +31612345678 |
| Pager | 9 digits | 066 2345678 | +31 66 2345678 | +31662345678 |
| Premium Rate | 7–10 digits | 0906 1234 | +31 906 1234 | +319061234 |
| Toll Free | 7–10 digits | 0800 1234 | +31 800 1234 | +318001234 |
| UAN | 5, 6, or 9 digits | 14 020 | +31 14020 | +3114020 |
| VoIP | 9 digits | 085 123 4567 | +31 85 123 4567 | +31851234567 |
How to Dial The Netherlands Numbers
From abroad
Dial +31 followed by the national number, dropping any leading 0.
Within The Netherlands
Dial 0 before the local number to make a domestic call.
Dialing out of The Netherlands
Dial 00 followed by the destination country code and number.
Area Codes
Browse The Netherlands area codes with cities, timezones, and example numbers for each.
Validate a The Netherlands Number with the API
Send the number to the free libphonenumber API to get the parsed country, type, formatting, and validity.
curl https://libphonenumberapi.com/api/phone-numbers/+31101234567Frequently Asked Questions
What is the country code for The Netherlands?
└ The international country code for The Netherlands is +31. Use this prefix when dialing The Netherlands numbers from another country.
How long is a The Netherlands phone number?
└ The Netherlands phone numbers are typically 9 digits, not including the +31 country code.
How do I dial a The Netherlands phone number from abroad?
└ From abroad, dial +31 followed by the national number, dropping any leading 0. Within The Netherlands, dial 0 before the local number.
How do I validate a The Netherlands phone number programmatically?
└ Send a GET request to https://libphonenumberapi.com/api/phone-numbers/<number>. The free libphonenumber API returns the parsed country, format, type, and validity for any number — no API key required.