31 Country Code: Netherlands (+31)
+31 is the country code for Netherlands. If you searched "31 country code", "country code 31", "0031 country code", or "+31 country code" — they all refer to Netherlands. The code is also called the 31 dialing code, 31 phone code, or 31 ISD code, and is assigned by the International Telecommunication Union (ITU) under the E.164 standard.
Dutch landlines use 2 or 3-digit area codes — the four largest cities have 2-digit codes (020 Amsterdam, 010 Rotterdam, 070 The Hague, 030 Utrecht). All Dutch mobile numbers start with 06 domestically, becoming +31 6 XXXXXXXX from abroad. Local landline numbers are 7 digits; mobile numbers are 9 digits (6 + 8 digits).
Call from your browser — no app, no subscription
$0.06/min to Netherlands|No install required. Use it in under 2 minutes.
Netherlands Phone Number Format
International Format Example
Domestic vs International
Drop 0 and prepend +31.
Major City Area Codes in Netherlands
Area codes for the largest cities in Netherlands. When dialing from abroad, prepend +31 and drop the leading 0.
| City / Region | Area Code | Domestic Form | From Abroad |
|---|---|---|---|
| Amsterdam | 20 | 020 | +31 20 |
| Rotterdam | 10 | 010 | +31 10 |
| The Hague | 70 | 070 | +31 70 |
| Utrecht | 30 | 030 | +31 30 |
| Eindhoven | 40 | 040 | +31 40 |
| Groningen | 50 | 050 | +31 50 |
Mobile Networks in Netherlands
- 6 (mobiles dial 06 domestically, +31 6 internationally)
- KPN
- Odido (ex T-Mobile)
- VodafoneZiggo
Netherlands Telephone System Facts
Calling Netherlands from Your Browser
To place a call to Netherlands, dial +31 followed by the local number in the Kinvo browser dialer. Pay-as-you-go, no app required.
Call Netherlands from Your Browser
Call any Netherlands number (+31) directly from Chrome, Firefox, Safari, or Edge. No install required. Use it in under 2 minutes.
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Frequently Asked Questions: Netherlands Country Code
Which country is country code 31?
Country code 31 belongs to Netherlands. The full international dialing code is +31, also written as 0031 when dialing from countries that use 00 as an international access code, or +31 when dialing from a mobile phone.
What is the country code for Netherlands?
+31 is the international dialing code for Netherlands, assigned by the ITU under E.164. The ISO 3166-1 alpha-2 code is NL.
What are the main area codes in Netherlands?
The largest cities in Netherlands use these area codes: Amsterdam (20), Rotterdam (10), The Hague (70), Utrecht (30). When calling from abroad, prepend +31.
Who are the main mobile carriers in Netherlands?
The major mobile operators in Netherlands are KPN, Odido (ex T-Mobile), VodafoneZiggo. Kinvo routes calls to every Netherlands mobile carrier at the same per-minute rate — no hidden surcharges for premium networks.
Do I drop the 0 when calling Netherlands from abroad?
Yes. Netherlands uses 0 as its domestic trunk prefix. When dialing from another country, remove it and replace with +31. The trunk prefix is only needed for long-distance calls within Netherlands.
What is the emergency number in Netherlands?
The emergency services number in Netherlands is 112. Emergency numbers cannot be dialed via Kinvo or any VoIP service — use a mobile network or landline for life-threatening emergencies.
Can I call Netherlands from my browser?
Yes. Kinvo connects calls to Netherlands via WebRTC directly from Chrome, Firefox, Safari, or Edge. No app download. Sign up, add credits from $5, and dial +31 followed by the local number.