> ## Documentation Index
> Fetch the complete documentation index at: https://help.cloudtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# 🇨🇿 Czech Republic Number Porting Guide

> A guide for porting your Czech numbers to CloudTalk

> [!NOTE]
>
> This guide outlines the supported number types, required documents, hosting rules, and porting timelines for Czech numbers.

## Initial Overview

### Supported Number Types

| Number Type | Format Example |
| - | - |
| Geographic (Local) | e.g., +420 2xx, +420 5xx |
| National | e.g., +420 8xx |
| Toll-Free | e.g., +420800xxx xxx |

> [!NOTE]
>
> ⚠️ Mobile numbers (+420 6 or 7xxx ) are not portable to VoIP operators.

### 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**.

> [!WARNING]
>
> Looking to port numbers from other countries? See **[Global Porting Coverage](https://help.cloudtalk.io/en/articles/5440566-porting-pricing-and-coverage.md)**.

### 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.)

### Timelines & Pricing

| Number Type | Estimated Duration | Price |
| - | - | - |
| Local | \~8 business days | **€30.00** per request, **€25.00** per number |
| National | \~8 business days | **€30.00** per request, **€25.00** per number |
| Toll-Free | \~8 business days | **€30.00** per request, **€25.00** per number |

> [!WARNING]
>
> ⚠️ Timelines may vary if submitted details do not match your current provider’s records.

***

## Required Documents For Number Porting

* Signed LOA

* OKU Code (mandatory; request directly from your current provider before submitting the porting request)

* Recent invoice (from your current provider)

#### What is the OKU Code?

**OKU** (in Czech: *Ověřovací Kód Účastníka*) is a **unique porting authorization code** used in the Czech Republic to confirm the end user's consent for number transfer.

* It is assigned by the current (losing) provider to the number holder

* Functions similarly to a PAC or PIN code in other countries

* It confirms ownership and authorization for the number to be ported

You must **request the OKU code from your current provider** before submitting the porting request to CloudTalk.

*You’ll enter your OKU code in the Verification step of your porting request.*

***

## 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.

***

## Common Rejection Reasons

| **Issue** | **Explanation** | **How to Fix** |
| - | - | - |
| **Missing OKU Code** | Porting request cannot be validated without it | Request your OKU from your current provider before submitting |
| **Mismatched Provider Info** | Incorrect formatting of number or details | Double-check the number’s type (local/national) and format |
| **Number Inactive** | Number is suspended or deactivated | Contact your provider to reactivate the number first |

***

## 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

***

**Need Help?**

For further assistance, please refer to:

* [CloudTalk Porting Process Overview](https://help.cloudtalk.io/en/articles/2145454-porting-requests-and-process.md)

* [CloudTalk Recommendations for a Smooth Port](https://help.cloudtalk.io/en/articles/6084486-recommendations-for-a-smooth-port.md)

* [Porting Pricing and Coverage](https://help.cloudtalk.io/en/articles/5440566-porting-pricing-and-coverage.md) - all countries where we offer porting

* [Country Specific Porting Guides](https://help.cloudtalk.io/en/articles/5440566-porting-pricing-and-coverage.md) - for our most requested countries

Questions about a request you've already submitted? Open it under **Numbers > Porting requests** and click **Open conversation**. You can also reach our [Porting](mailto:porting@cloudtalk.io) team by email. We're always happy to help!


## Related topics

- [🇮🇪 Ireland Number Porting Guide](https://help.cloudtalk.io/en/articles/11431321-ireland-number-porting-guide.md)
- [🇦🇺 Australia Number Porting Guide](https://help.cloudtalk.io/en/articles/11069749-australia-number-porting-guide.md)
- [🇨🇦 Canada Number Porting Guide](https://help.cloudtalk.io/en/articles/11045800-canada-number-porting-guide.md)


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