Dutch business phone number
A landline in Amsterdam or Rotterdam: KvK extract and local address required.
Local and mobile, document by document
Required documents, local and mobile
Dutch local number
+31 · For businesses only
Required address
Local address, within the area code’s zone
The company’s address must be in the city or region covered by the area code of the chosen number. A PO box is not accepted.
To provide
- Commercial register extract (KvK)DocumentThe Kamer van Koophandel extract proves the company exists.
- Proof of address within the area code’s zoneDocumentAny of: the KvK extract if it shows this address, an energy, water or telecom bill, a tax notice, a rent receipt or a property deed. A PO box is not accepted.
- Dutch VAT numberTo enterThe company’s BTW number. No document to attach.
Dutch mobile number
+31 · For businesses only
The Dutch mobile numbers available are 097 numbers, reserved for automated machine-to-machine communication: they cannot be used to make calls. Choose a landline number.
Indicative list updated on 15 October 2026. Requirements are set by each country’s authorities and may change; the exact list is confirmed when you order the number.
Getting a Dutch virtual phone number for your business
The Netherlands is one of the most open B2B markets in Europe, and one of the most comfortable with English on the phone. A 020 or 010 number places you in Amsterdam or Rotterdam in your prospects’ eyes.
For a landline number, the rule is strict: the company’s address must be within the area covered by the chosen area code. A 020 number requires an address in the Amsterdam area, proven by the Chamber of Commerce (KvK) extract or by a bill.
Mobile is not an option for calling: the Dutch mobile numbers available are 097 numbers, which the Dutch authority reserves for automated machine-to-machine communication, with no voice calls.
Country code and number format
- Local (landline)
- +31 +31, then 9 digits, starting with the city code without the 0: 20 Amsterdam, 10 Rotterdam, 70 The Hague, 30 Utrecht, 40 Eindhoven. Example: +31 20 123 4567.
- Mobile Not available
- +31 +31 6, then 8 digits (06 nationally).
What you need to know
The KvK extract
The Kamer van Koophandel keeps the Dutch commercial register. Its extract (uittreksel) proves the company exists and, if it shows the address, also serves as proof of address.
Mobile numbers reserved for machines
The Netherlands Authority for Consumers and Markets (ACM) assigns mobile numbers of this type from the 097 blocks, reserved for automated applications. They allow neither person-to-person calls nor voice telephony.
Choosing your city
Your address determines which area code you can have. If your Dutch office is in Utrecht, your number will start with 030, not 020.
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