This guide outlines the supported number types, required documents, hosting rules, and porting timelines for Hong Kong numbers.
Initial Overview
1. Supported Number Types
Local (Geographic)
Toll-free
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 | Pricing |
Local | 22 business days | €30.00 per request, €60.00 per number |
Toll-Free | 32 business days | €0.00 per request, €45.00 per number |
⚠️ Timelines may vary if submitted details do not match your current provider’s records.
Required Documents for Number Porting
✅ Local Numbers
Signed LOA (the template downloads in the Documents step of your porting request, or we email it after you submit; not needed upfront)
Recent invoice (shows number(s) and account ownership)
HK Business Registration certificate
Hunting Line declaration (must identify the main number and all associated lines; entire number block must be ported)
✅ Toll-Free Numbers
Signed LOA
Latest Invoice
Hunting Line Declaration (as above; applies to both local and toll-free)
Note: Porting is not possible for only a portion of a number range
Proof of Address Requirement (applies to all numbers):
Must be third-party issued and match the name on the LOA/invoice
Accepted:
Utility bill (within 6 months)
Bank statement (within 6 months)
Government-issued document (within the past year)
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 |
Missing or incomplete LOA | Ensure the LOA is fully filled out, digitally signed by an authorized person, and includes the correct main number (Hunting Line). |
Invoice does not match provider records | Use a recent invoice (within 30 days) that clearly shows the number(s) being ported and the correct business name. |
Business registration not provided or invalid | Include a valid Hong Kong Business Registration Certificate with the correct entity name matching the LOA. |
No Hunting Line declared | Clearly identify the main number and associated lines in your documents—this is mandatory for Hong Kong ports. |
Partial port request for a number range | Entire blocks must be ported together. Do not attempt to port only a subset of a range; the request will be rejected. |
Outdated or missing proof of address | Make sure your supporting document is recent (within 6 months) and issued by a third party. Accepted formats: utility bill, bank statement, or official government document. |
LOA or invoice name mismatch | The name on all submitted documents must match exactly. Differences in formatting or abbreviations may cause delays or rejection. |
On Porting Day
Your number is activated in your CloudTalk account
Your former provider deactivates the number
CloudTalk billing begins the same day
Need Help?
For further assistance, please refer to:
Questions about a request you've already submitted? Open it under Numbers > Porting requests and click Open conversation.