Voice
How to Call the Netherlands
The Netherlands country code is +31. Learn how to call the Netherlands from any country with exit codes, dialing formats, area codes, and cost tips.
The Netherlands country code is +31. Use +31 as the international dialing prefix for calls to the European Netherlands from any country, then dial the Dutch area code without the leading 0 and the local number. The ISO codes are NL and NLD.
NETHERLANDS COUNTRY CODE
+31
Dial before any Dutch number from outside the Netherlands
What is the country code for the Netherlands?
| Quick reference | Detail | When to use |
|---|---|---|
| Country Code | +31 | Dial before a Dutch number |
| ISO Code | NL / NLD | Country identifiers |
| International Prefix | +31 | Use for calls into the Netherlands |
| Trunk Prefix | 0 | Use only for domestic dialing |
| Number Length | 9 digits after +31 | Area or mobile code plus subscriber number |
| Emergency | 112 | Police, fire, and ambulance |
Good to know: Dutch Caribbean territories use different country codes, including Aruba +297, Curacao and Bonaire +599, and Sint Maarten +1-721. This guide covers the European Netherlands only.
For Dutch numbers, the 0 at the start of a domestic area code is the trunk prefix. Keep it for calls inside the Netherlands. Remove it when calling from another country.
How to call the Netherlands
Use this universal format: exit code, then +31, then area code with the trunk 0 removed, then local number.
- Dial your exit code, or press + on a mobile phone.
- Dial 31 for the Netherlands.
- Dial the area code without the leading 0.
- Dial the local subscriber number.
International call flow:
1. Exit code
→
2. +31
→
3. Area code without 0
→
4. Local number
Exit code by country
US and Canada
011
UK and most of Europe
00
Australia
0011
Mobile, any country
+
Drop the Dutch trunk 0 when dialing internationally. Amsterdam 020 becomes 20, and Rotterdam 010 becomes 10.
Dialing format and examples
The +CC format works on any mobile phone. Use +31 20 1234567 for an Amsterdam landline and +31 6 12345678 for a mobile number.
| Origin | Format | Example |
|---|---|---|
| US/Canada | 011 31 area code local number | 011 31 20 1234567 |
| UK | 00 31 area code local number | 00 31 20 1234567 |
| Australia | 0011 31 area code local number | 0011 31 20 1234567 |
| Mobile, any country | +31 area code local number | +31 20 1234567 |
For other European dialing guides, see How to call England, How to call Germany, and How to call France.
What a Netherlands number looks like
A Dutch phone number in international format has three parts. The trunk 0 is removed before +31.
Landline
+31 | 20 | 1234567
Mobile
+31 | 6 | 12345678
Number format and length
After +31, Dutch numbers contain 9 digits. Landlines use a 2-3 digit area code and a 6-7 digit subscriber number. Mobile numbers use 6 followed by 8 digits.
| Number type | Pattern | Example |
|---|---|---|
| Amsterdam landline | +31 20 XXX XXXX | +31 20 123 4567 |
| Rotterdam landline | +31 10 XXX XXXX | +31 10 123 4567 |
| Dutch mobile | +31 6 XXXX XXXX | +31 6 1234 5678 |
Format a Netherlands number for WhatsApp
For WhatsApp, save the Dutch number in international format with +31 and no trunk 0. A Dutch mobile written as 06 1234 5678 becomes +31 6 1234 5678. You can also save it without spaces as +31612345678.
If your team needs a Dutch number for customer calls or local presence, see Telnyx Phone Numbers for numbers in 140+ countries with instant activation.
Good to know: WhatsApp needs the full international format. Drop the leading 0 before you add +31.
Netherlands area codes, toll-free, and emergency numbers
Dutch area codes include the trunk 0 when dialed inside the Netherlands. From another country, remove that 0 and place +31 before the area code.
| City or region | Domestic code | International code |
|---|---|---|
| Amsterdam | 020 | +31 20 |
| Rotterdam | 010 | +31 10 |
| The Hague | 070 | +31 70 |
| Utrecht | 030 | +31 30 |
| Eindhoven | 040 | +31 40 |
| Groningen | 050 | +31 50 |
| Number type | Dialed in NL | Notes |
|---|---|---|
| Emergency | 112 | Police, fire, ambulance |
| Toll-free | 0800 | Free from Dutch lines, not always reachable from abroad |
| Premium rate | 0900 | Can cost more than standard calls |
| Business numbers | 085 | Non-geographic business lines |
Keep in mind: 112 works inside the Netherlands only. If you are outside the Netherlands, call the emergency number for your current location. 0800 and 0900 numbers may not accept calls from outside the Netherlands.
Cost and best time to call the Netherlands
Call cost and timing depend on your carrier, your country, and whether you call a landline, mobile, toll-free, or premium-rate number.
How much does it cost to call the Netherlands
For business calling, Telnyx SIP Trunking gives per-minute pricing for calls to Dutch landline and mobile destinations with usage-based pricing and a 99.999% uptime SLA. Your total cost can change based on call volume, destination type, and fees from your current provider.
| Calling method | Cost pattern | Best for |
|---|---|---|
| Mobile carrier | Plan rate or international fee | Personal calls |
| International add-on | Recurring fee plus lower per-minute rates | Repeat callers |
| VoIP or SIP | Per-minute pricing by destination type | Teams and high-volume calling |
Good to know: Ask your provider whether Dutch mobile calls are priced differently from landline calls. They often are.
Time zones and best time to call
The Netherlands follows Central European Time, UTC+1, and Central European Summer Time, UTC+2, during daylight saving. For business calls, aim for 9:00 a.m. to 5:00 p.m. in the Netherlands.
| Calling from | Offset from NL | Best call window |
|---|---|---|
| United Kingdom | NL is 1 hour ahead | 8:00 a.m. to 4:00 p.m. UK time |
| US Eastern | NL is 6 hours ahead | 9:00 a.m. to 11:00 a.m. ET |
| US Pacific | NL is 9 hours ahead | 6:00 a.m. to 8:00 a.m. PT |
Good to know: Time differences can shift for short periods because daylight saving dates do not match in every country.
Is calling the Netherlands free
Calling the Netherlands is not automatically free. It may be free if your mobile or landline plan includes Netherlands calling, if both parties use an app over data, or if a company gives you a reachable toll-free number.
WhatsApp and similar apps do not charge per minute for app-to-app calls, but your internet or roaming plan may charge for data. Business callers can use SIP Trunking with usage-based pricing for the lowest per-minute rates.
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