Porting your German phone number to CloudTalk is a smooth process when the necessary documents are provided accurately. This guide covers what number types are supported, the documentation required, and how to prepare for a successful port.
Supported Number Types
Mobile numbers are not portable at this time (+49 15xx-xxxxxxx, 16x-xxxxxxx, 17x-xxxxxxx). If you already have a mobile number you would like to use for outbound calls on CloudTalk, we can create a Virtual Caller ID of your existing number
Required Documents for Number Porting
To initiate the porting process, please provide:
Geographic (local) and National (non-geographic) numbers
Signed Letter of Authorization (LOA) - CloudTalk Carriers Team will send you an English LOA guide during the port submission if you are confused how to fill this out
Must be completed and signed by an authorized representative.
For businesses, a company stamp is mandatory.
The address on the LOA should match the address registered with your current provider.
Latest Invoice from your Current Provider:
A billing statement from your current provider, dated within the last 30 days, displaying your company name and the number(s) to be ported.
Proof of Business Registation in the locality of the number
For GmbH (Ltds): Handelsregisterauszug (Commercial Register Extract)
For sole proprietors, civil partnerships, tradespeople: Gewa 1/2 signed and stamped by the local authority + Passport or National ID of the individual (front and back in color)
Toll-free numbers
For German-based companies
Signed Letter of Authorization (LOA):
Allocation Letter (Zuteilungsbescheid):
Required for toll-free numbers.
This document shows the original allocation of the number to your company by the telecom authority, Bundesnetzagentur (BNetzA)
Handelsregisterauszug (Commercial Register Extract)
VAT Number:
Especially relevant for toll-free number porting to confirm your business's tax identification.
Latest Invoice from your Current Provider:
A billing statement from your current provider, dated within the last 30 days, displaying 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 - someone who is listed on the business registration as Geschäftsführer or Prokora
alternately, you can elect a different registration but the company director or HR must proved a letter of delegation of authority to the ID-holder
Latest Invoice from your Current Provider:
A billing statement from your current provider, dated within the last 30 days, displaying your company name and the number(s) to be ported.
Summary of Requirements by Number Type
Number Type | Documents Required for Porting | Additional Compliance Documents | Notes |
Local | - LOA (with company stamp) | Handelsregisterauszug (Commercial Register Extract) or other business registration type | Local address in Handelsregister or Gewa must match the number's registered location |
Toll-Free | - LOA (with company stamp) | Handelsregister extract | Allocation Letter must show the same company name and match VAT registration |
What is a Handelsregisterauszug (Commercial Register Extract)?
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.
What Information Does It Contain?
The extract typically includes:
Company name
Registered address
Legal form (e.g., GmbH, AG)
Managing directors or authorized representatives
Registration number
Date of registration
How to Obtain a Handelsregisterauszug
There are two main ways to get it:
Online from the Official Portal
Go to the German Register Portal: https://www.handelsregister.de
Search by company name or registration number
You can select Actual Printout or Chronologic Print out to download PDF version
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
Estimated Porting Timelines
All number types: Approximately 2 weeks after full documentation is submitted.
Delays may occur if information doesn’t match provider records.
Common Rejection Reasons & How to Avoid Them
Issue | What It Means | How to Fix It |
Missing company stamp | The LOA wasn’t stamped | Resubmit the LOA with your official stamp |
Mismatched address | The site address in the LOA doesn’t match the current provider's records | Check with your provider to confirm the registered address |
Missing/mismatched Allocation Letter (0800) | The toll-free number doesn’t match your business | Provide an updated Allocation Letter from the original telecom authority |
Incomplete Range | The number is part of a range which cannot be split or ported individually | Ask your current provider if it is possible to split the range into individual numbers so you can port your number out |
Inactive number | The number has been deactivated or suspended | Ask your provider to reactivate it before the port request |
Outdated invoice | Invoice is older than 30 days | Provide a recent one from your current carrier |
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.