This guide outlines the supported number types, required documentation, and key steps to ensure a smooth porting process for your German numbers.
Have numbers from other countries too? See CloudTalk's Global Porting coverage here
Supported Number Types
⚠️ Mobile numbers (+49 15xx, 16x, 17x) are not portable.However, we can configure a Virtual Caller ID using your existing mobile number.
Required Documents for Number Porting
✅ Geographic (local) and National (non-geographic) numbers
Completed and signed by an authorized representative.
For businesses, a company stamp is mandatory.
The address on the LOA must match the address registered with your current provider.
Latest Invoice from your Current Provider:
Issued within the last 30 days.
Must clearly show your company name and the number(s) to be ported.
Proof of Business Registration in the locality of the number
For GmbH (Ltds): Handelsregisterauszug (Commercial Register Extract)
For sole proprietors, civil partnerships, tradespeople: A signed and stamped Gewa 1/2 form from the local authority, along with a color copy of the individual’s passport or national ID (front and back).
✅ Toll-free numbers
For German-based companies
Allocation Letter (Zuteilungsbescheid)
Official document from the Bundesnetzagentur confirming the original assignment of the toll-free number to your company.
Handelsregisterauszug (Commercial Register Extract)
VAT Number
required to verify your company’s tax identification
Latest Invoice from your Current Provider
Issued within the last 30 days.
Must clearly show your company name and the number(s) to be ported.
For non-German-based companies
Business registration in your main country of operation
ID of a legal company representative
a person listed as Geschäftsführer or Prokura on the business registration.
Alternatively, if another person is to be authorized, a letter of delegation must be provided by the company director or HR, along with the delegate’s ID.
Latest Invoice from your Current Provider
Issued within the last 30 days.
Must clearly show your company name and the number(s) to be ported.
What is a Handelsregisterauszug?
The Handelsregisterauszug, or Commercial Register Extract, is an official document issued by the German commercial register (Handelsregister) that contains key details about a registered company. It’s often required during number porting as proof of the company's legal existence and registered address.
How to Obtain a Handelsregisterauszug?
There are two main ways to get it:
Online from the Official Portal
Visit www.handelsregister.de
Search using your company name or registration number
Choose either "Current Extract" or "Chronological Extract" and download the PDF
Request from Your Company’s Legal or Admin Department
If you're not the person handling legal registrations, your company’s legal or finance team likely already has a copy
It should be no older than 3 months to be accepted for porting
💡 When submitting the Handelsregisterauszug to the CloudTalk team, ensure it includes: company name, registered address, legal form (e.g., GmbH, AG), authorized representatives, registration number, and registration date.
Number Porting Process & Details
Number Type | Estimated Duration | Pricing |
Local | ~2 weeks | €30.00 per request, €6.00 per number |
National | ~7 weeks | €30.00 per request, €20.00 per number |
Toll-Free | ~2 weeks | €30.00 per request, €6.00 per number |
⚠️ Porting timelines may be delayed if submitted information does not match your current provider's records.
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 & How to Avoid Them
Issue | How to Fix It |
LOA submitted without a company stamp | Resubmit the LOA with your official company stamp. |
Address on the LOA not matching provider’s records | Confirm the correct registered address with your current provider and update the LOA. |
Missing/mismatched Allocation Letter (0800) | Provide a valid Allocation Letter from the telecom authority (e.g., Bundesnetzagentur). |
Number is part of a block that can’t be ported individually | Check with your provider if the number range can be split or ported as a whole. |
Number is currently deactivated or suspended | Request your provider to reactivate the number before submitting the porting request. |
Invoice is older than 30 days | Provide a more recent invoice from your current telecom provider |
What Happens on Porting Day
The number is activated in your CloudTalk account
Your former provider deactivates the number
CloudTalk billing begins the same day
We recommend notifying your previous provider to prevent duplicate charges
Need Help? For more guidance, check out:
Or reach out to our Porting Team - we're here to support you every step of the way.