The +31 prefix belongs to Netherlands. If you got a call or text from a number starting with +31 (calling code 31), it came from Netherlands.
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Code
+31
ISO
NL
Region
Europe
Time zone
Europe/Amsterdam
The +31 code identifies Netherlands on the international telephone network. Country code 31 is assigned to Netherlands under the ITU-T E.164 numbering plan, so any phone number that begins with +31 — written +31 or 0031 — is a Netherlands number.
Every Netherlands number in international format follows this shape — colour-coded so you can see where the country code ends and the local number begins.
When dialing Netherlands from abroad, the only fixed part is +31 — that's the country code. The rest depends on whether you're calling a mobile or landline number inside Netherlands.
+XX X XXXXXXXX
Example: +31 6 12345678
+31 XX XXXX XXX
Include the area code if applicable. Omit any leading 0.
Enter the country code +31 when dialing Netherlands from abroad.
Add the local phone number (in most countries, drop the leading zero).
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Example numbers for Netherlands:
Dialing codes immediately above and below +31 in the ITU plan — handy if you mistyped a digit or are dialing across a region.
Everything you need to know about TwinPhone.
The +31 code belongs to Netherlands. Any phone number that starts with +31 — or with 0031 — is a Netherlands number.
The 0031 prefix is Netherlands. The 00 is the international exit code dialed from Europe and many other regions; it is followed by +31, the Netherlands country code.
Dialing code 31 (dialed as +31 or 0031) belongs to Netherlands. Any phone number that starts with +31 is a Netherlands number.
Country code 31 is the ITU-T E.164 calling code for Netherlands. To call Netherlands from abroad, dial +31 followed by the national number.
The country code (international dialing code) for Netherlands is +31. To call Netherlands from abroad, dial +31 followed by the national number (in most countries, without its leading zero).
+31 is Netherlands's international country calling code under the ITU E.164 plan — often searched as the "31 area code". Any phone number starting with +31 is a Netherlands number.
From TwinPhone, just type +31 and the number — we connect it. From a landline, dial your exit code, then +31, then the number (in most countries, without the leading 0).
Netherlands's current local time is shown live on this page. Check it before calling so you reach people during waking hours.
Yes! Virtual numbers in Netherlands start at $1.60/month. Use it as your caller ID so people see a local number, or receive incoming calls directly in your browser.
Calling Netherlands with TwinPhone starts from $0.02/min, billed by the minute (rounded up to the next full minute). It is pay-as-you-go from your browser — no connection fee and no monthly fee. The exact per-minute price for +31 landlines and mobiles is shown live on this page.
Yes. TwinPhone works entirely in your web browser — Chrome, Edge, Safari, or Brave on desktop or mobile. There is no app to install and no SIM card: open the site, add credit, dial +31 and the Netherlands number, and the call connects.
A +31 number is not automatically a scam — +31 is simply the country code 31 assigned to Netherlands under ITU-T E.164, so the call or text came from Netherlands. If you do not know anyone there, treat an unexpected +31 call with the same caution as any unknown number: do not call back blindly and do not share personal details. Costs to call Netherlands are shown above.
Dial +31 with TwinPhone — no SIM, no app, right from your browser.
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