This guide outlines the supported number types, required documents, hosting rules, and porting timelines for Luxembourg numbers.
Initial Overview
1. Supported Number Types
Number Type | Example Prefixes |
Local | +3522, +3524… |
National | +352... |
Toll-Free | +800, +352800... |
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
You’ll need to submit a signed Letter of Authorization (LOA). If a template is available for this country, it downloads inside the Documents step of your porting request; otherwise we’ll email you the correct template after you submit. Sign it and upload it with your request.
(Other document requirements listed below.)
4. Timelines & Pricing
Number Type | Estimated Duration | Price |
Local | 9 business days | €30.00 per request, €5.00 per number |
National | 9 business days | €30.00 per request, €5.00 per number |
Toll-Free | 9 business days | €30.00 per request, €20.00 per number |
⚠️ Timelines may vary if submitted details do not match your current provider’s records.
Required Documents for Number Porting
✅ Local Numbers
Latest Invoice from the current service provider
Signed LOA (Letter of Authorization)
VAT / TAX Identification Number
A local contact phone number
For Hosting (Regulatory Address Compliance):
Full name and surname of the representative
Company registration certificate
Address located in Luxembourg
✅ National Numbers
Latest Invoice from the current service provider
LOA
VAT / TAX ID
Local contact phone number (for Luxembourg NRA use)
Hosting Address Must Include:
Name, surname
Company name
Address in Luxembourg
✅ Toll-Free Numbers
Latest Invoice from the current service provider
LOA
VAT / TAX ID
Local contact phone number
For Hosting:
Name, surname
Company name
Address can be worldwide
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 Avoid It |
Mismatched information | Ensure invoice, LOA, and VAT ID match exactly |
Outdated documents | Submit documents issued within the last 30 days |
Missing regulatory contact | Include a valid Luxembourg-based contact number |
Incomplete VAT info | Include accurate, registered VAT/TAX ID |
Unregistered company address | Must include full registered business address in LU |
On Porting Day
The number will be activated in CloudTalk
Your previous provider will release and deactivate the number
You’ll begin receiving inbound calls through CloudTalk
CloudTalk billing begins the same day
Need Help?
For further assistance, please refer to:
Porting Pricing and Coverage - all countries where we offer porting
Country Specific Porting Guides - for our most requested countries
Questions about a request you've already submitted? Open it under Numbers > Porting requests and click Open conversation. You can also reach our Porting team by email. We're always happy to help!