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

Initial Overview

1. Supported Number Types

Number Type	Example Prefixes
Geographic (Local) Numbers	+441, +442
Mobile Numbers	+447
Non-Geographic (National)	+443
Non-Geographic (Toll-Free)	+44800, +44808

2. Submit Your Request

You can request number porting using the International Porting Form.

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

3. Download LOA Template

You’ll need to submit a Signed Letter of Authorization (LOA).

(Other document requirements listed below.)

4. Timelines & Pricing

Number Type	Estimated Duration	Pricing
Local	~15–20 business days	€30.00 per request, €7.00 per number
National	~15–20 business days	€30.00 per request, €7.00 per number
Toll-Free	~15–20 business days	€30.00 per request, €8.00 per number
Mobile	~5–7 business days	€30.00 per request, €7.00 per number

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

Required Documents for Number Porting

LOA templates are attached as a .zip file at the bottom of this guide.

✅ Geographic (Local) Numbers

Signed Letter of Authorization (LOA)
Recent billing document (issued within the last 3 months, showing number and account holder)
UK site address matching the number’s registered location

✅ Mobile Numbers

Signed LOA
PAC Code (Porting Authorization Code)
- Format: 3 letters + 6 digits (e.g. ABC123456)
- Issued by your current mobile provider
- Valid for 30 days
Recent billing document (issued within the last 3 months, showing number and account holder)

✅ National & Toll-Free Numbers (Non-Geographic)

Signed LOA (must include Billing Account Number)
Recent billing document (issued within the last 3 months, showing number and account holder)

Regulatory Compliance (KYC)

UK number porting is subject to identity verification under UK telecom regulations. CloudTalk (via our partner carrier) may request additional documents depending on:

Whether your company is UK-based or international
The type of number being ported (mobile, geographic, non-geographic, etc.)

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

Issue	Description	How to Fix
Mismatched Account Information	Details on the LOA don't match what's on file with the losing provider (often the postal code).	Double-check the LOA fields against your provider’s account info.
Incorrect or Incomplete LOA	Required fields are missing or the signature is typed.	Fill all fields and apply a valid digital or handwritten signature.
Invalid PAC or STAC	The code for mobile numbers is incorrect or expired.	Request a valid PAC/STAC from your current provider before submission.
Outdated Billing Document	Invoice is older than 3 months.	Submit a recent invoice issued within the past 90 days.