This guide outlines the supported number types, required documents, hosting rules, and porting timelines for Austrian numbers.
Initial Overview
- Supported Number Types
⚠️ Mobile numbers (+43 6) are not portable to VoIP operators. 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 or help you buy a new Austrian mobile.
- 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.
- 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.)
- Timelines & Pricing
Required Documents For Number Porting
The correct LOA templates download inside the Documents step of your porting request.✅ Local Numbers
- Signed LOA
- Recent invoice (from current provider)
- Business registration with a local address (e.g. Handelsregister, Gewa)
- Authorized representative’s ID (passport, gov. ID, or bank confirmation)
✅ National Numbers
- Signed LOA
- Latest invoice from the current service provider
✅ Toll-Free Numbers
- Signed LOA (if a template is not available to download in the Documents step, we will email you the correct template after you submit; you can submit your request without attaching it)
- Latest invoice from the current service provider
Porting Process Overview
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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
On Porting Day
- Your number will be activated in CloudTalk
- Your previous provider will release and deactivate it
- You’ll start receiving inbound calls in CloudTalk
- CloudTalk billing begins the same day
Need Help? For further assistance, please refer to:
- CloudTalk Porting Process Overview
- CloudTalk Recommendations for a Smooth Port
- Porting Pricing and Coverage - all countries where we offer porting
- Country Specific Porting Guides - for our most requested countries