🇬🇧 UK Number Porting Guide

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Initial Overview

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1. Supported Number Types

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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.

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3. 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.)

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4. Timelines & Pricing

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Required Documents for Number Porting

The correct LOA template downloads inside the Documents step of your porting request.

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✅ 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

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✅ Mobile Numbers

• PAC Code (Porting Authorization Code)
  • 9-digit Format: 3 letters + 6 digits (e.g. ABC123456) - Issued by your current mobile provider
  • Expiration date of PAC Code with current Provider - Valid for 30 days by default
    • From major carriers like Vodafone or O2 there will be one unique PAC code per number
    • If you are moving from another VoIP platform there may be only one PAC code for a whole batch of numbers
  • You’ll enter your PAC code in the Verification step of your porting request.
• Recent billing document (issued within the last 3 months, showing number and account holder)

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✅ 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)

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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.)

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Porting Process Overview

1. Submit Your Porting Request
   Submit your request in the CloudTalk Dashboard under Numbers > Port existing number.
2. Initial Review
   Cloudtalk team’ll verify number portability and confirm the next steps.
3. Documentation Collection
   Complete and sign the LOA (Letter of Authorization), and provide a recent invoice from your current telecom provider.
4. Submission to Carrier
   CloudTalk submits your request to our partner carrier, who then forwards it to your current provider.
5. 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.

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Common Rejection Reasons

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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

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SMS Functionality Note

• SMS for mobile numbers is activated along with voice
• Geographic, national, and toll-free numbers are not SMS capable

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Need Help? For further assistance, please refer to:

• CloudTalk Porting Process Overview
• CloudTalk Recommendations for a Smooth Port

Questions about a request you’ve already submitted? Open it under Numbers > Porting requests and click Open conversation.