This guide outlines the supported number types, required documents, hosting rules, and porting timelines for Hong Kong numbers.

Initial Overview

1. Supported Number Types

You can request number porting using the International Porting Form.

Looking to port numbers from other countries? See Global Porting Coverage.

You’ll need to submit a signed Letter of Authorization - The LOA template will be provided over email after submitting your request.

(Other document requirements listed below.)

⚠️ Timelines may vary if submitted details do not match your current provider’s records.

Signed LOA (sent via email after submitting the request; 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 (no range splitting)

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)

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.

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.