This guide outlines the supported number types, required documents, hosting rules, and porting timelines for Dutch numbers.

Initial Overview

1. Supported Number Types

Number Type	Example Prefixes
Geographic (Local) Numbers	+31 1, +31 2, +31 3, +31 4, +31 5, +31 7
Non-Geographic (National)	+31 85
Toll-Free Numbers	+31800

⚠️ Mobile numbers (+31 6) are not portable to VoIP operators.

2. Submit Your Request

You can request number porting using the International Porting Form.

Looking to port numbers from other countries? See Global Porting Coverage.

3. Download LOA Template

You’ll need to submit a signed Letter of Authorization (LOA)- LOA template is included as a .zip file at the end of this guide

(Other document requirements listed below.)

4. Timelines & Pricing

Number Type	Estimated Duration	Pricing
Local	17 business days	€30.00 per request, €5.00 per number
National	17 business days	€30.00 per request, €7.00 per number
Toll-Free	30 business days	€0.00 per request, €130.00 per number

⚠️ Timelines may vary if submitted details do not match your current provider’s records.

Required Documents for Number Porting

LOA template (.zip) is attached at the bottom of this guide.

✅ Local and National Numbers

Signed Letter of Authorization (LOA)
Latest Invoice (showing the number(s) and confirming account ownership)
Address Requirements
- Local Numbers: A valid address in the Netherlands within the same area code as the number being ported is required
- National Numbers: No address documentation is required

✅ Toll-Free Numbers (+31800)

Option 1: You are the registered end user with ACM

If your company is the direct owner of the number, registered with the Netherlands Authority for Consumers and Markets (ACM), you will need to provide:

Signed Letter of Authorization (LOA)
KvK (Chamber of Commerce) number to verify company registration

Option 2: Number is hosted under a VoIP reseller

Transfer of Rights from current provider to your company or CloudTalk’s carrier
Ownership transfer template (provided by CloudTalk Porting Team after request submission)

Porting Process Overview

Submit Your Porting Request
Send your request to the CloudTalk Porting Team to begin the process.
Initial Review
Cloudtalk team'll verify number portability and confirm the next steps.
Documentation Collection
Complete and sign the LOA (Letter of Authorization), and provide a recent invoice from your current telecom provider.
Submission to Carrier
CloudTalk submits your request to our partner carrier, who then forwards it to your current provider.
Approval or Rejection
- If approved, Cloudtalk team will confirm the porting date (typically 2–4 business days in advance).
- If rejected, Cloudtalk team will share the reason and guide you on how to correct and resubmit the request.

Common Rejection Reasons

Issue	How to Fix
Incorrect or mismatched information	Double-check that the name and address match your current provider’s records
Outdated invoice	Ensure the invoice is recent (within 30 days) and lists the number(s) to port
LOA not signed or signed by the wrong person	The LOA must be signed by an authorized person on the account