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
Request porting directly in the CloudTalk Dashboard: open Numbers > Port existing number and follow the guided steps. All supported number types for this country use the same flow, and you can track your request anytime under Numbers > Porting requests.
Looking to port numbers from other countries? See Global Porting Coverage.
3. Letter of Authorization
Where an LOA is required, the correct template for this country downloads inside the Documents step of your porting request: download it, sign it, and upload it right there. You no longer need a separate template from 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
The correct LOA template downloads inside the Documents step of your porting request.
✅ 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
Submit your request in the CloudTalk Dashboard under Numbers > Port existing number.
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 |
On Porting Day
Your number will switch to CloudTalk on the scheduled date.
Your old provider will deactivate the number.
CloudTalk billing will start on the same day.
We recommend contacting your old provider to confirm billing has stopped.
Need Help?
For more guidance, check out:
Questions about a request you've already submitted? Open it under Numbers > Porting requests and click Open conversation. Our Porting Team is here to support you every step of the way.