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

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Initial Overview

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  1. Supported Number Types

For Local numbers, our primary carrier supports limited locality range below. If your number is from a different locality we may need to port it to a different carrier. Submit your porting request in the Dashboard and our team will confirm whether your number is portable during the initial review.
  • +52-55 (Mexico city)
  • +52-664 (Tijuana)
  • +52-222 (Puebla)
  • +52-33 (Guadalajara)
  • +52-477 (León)
  • +52-656 (Juárez)
  • +52-81 (Monterrey)
  • *you can find MX Local Numbers prefixes with corresponding localities here

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  1. 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.

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  1. 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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  1. Timelines & Pricing

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

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Required Documents for Number Porting

The correct templates and English guides for your number type download inside the Documents step of your porting request.

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✅ Local (Geographic) Numbers

  • Signed LOA
  • Porting Annex
  • Signed Porting Power of Attorney
  • Most Recent Invoice or Proof of Ownership
  • Business registration in Mexico
  • National ID Card or Passport of the authorized person

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Other Compliance Requirements

  • Business Registration in Mexico - * The Constancia de Situación Fiscal (Tax Status Certificate), available through the SAT portal
    • *Additional Proof of Address in the Same City as the Number - Required if the business registration does not include the full address or is in a different city
    • Acceptable documents include:
      • Government-issued documents
      • Recent official government correspondence
      • Utility bill (electricity, water, telecom, etc.)
You can find a list of Mexican local number prefixes and their corresponding cities here.
If your business is not based in Mexico, please contact our Porting team, as we may be able to port your number to a back-up operator

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✅ Toll-free Numbers

  • Latest Invoice of the Current Service Provider
  • LOA - the template downloads in the Documents step of your porting request
  • Copy of legal representative’s photo ID
  • Copy of power of attorney

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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

  • Your number is activated in CloudTalk
  • Your previous 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. You can also reach our Porting team by email. We’re always happy to help!