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Czechia (+420)

Your handy guide to sending in Czechia

Updated over a week ago

You can send One-Way and Two-Way SMS in Czechia.

However, you can't send MMS messages.


Available Sender IDs

You can choose from a few Sender ID options when sending to Czechia.

Registration and fees may apply.

Not sure which one to choose?

See our Sender ID guide or contact support — we're happy to help.

Alpha tags

Alpha tags allow you to use your brand name as your Sender ID instead of a number. Recipients cannot reply to messages sent using an alpha tag.

To register an alpha tag, please contact support.

Alpha tag registration usually takes 10 business days.

Registration requirements

When registering an alpha tag, you will need to provide:

  1. Alpha Tag

  2. Business website

  3. Company Name

  4. Intended Use (Alerts, marketing, transactional, OTP)

  5. A copy of the Trading License

  6. Must fill out form/s that will be sent by our global sending specialist

Dedicated numbers

Send from a trusted, local number. Your messages will always come from a consistent Sender ID, which is perfect for establishing trust and recognition.

To purchase a dedicated number, please contact support.

Dedicated number registration usually takes 2-3 weeks.

Registration requirements

When purchasing a dedicated number, you will need to provide:

  • Company name

  • Contact details (email and phone)

  • Service description

  • Expected volumes (inbound and outbound)


Rules and best practices

The sending of messages for commercial purposes is prohibited if any of the following apply:

  • The message is not clearly identified as a commercial communication

  • The sender’s identity (brand) is concealed or hidden

  • The message is sent without a valid opt-out address or method that allows the recipient to unsubscribe directly and effectively

These rules apply to all A2P SMS traffic, but are especially enforced for 2-way (Dedicated Number) messaging, where the sender name may not be clearly visible.

For promotional traffic, clients should begin the message with “OS:”, short for “obchodní sdělení”, which means "commercial communication" in Czech.


Content guidelines

Before you start sending, carefully review our sending guidelines to understand the types of messages you can't send. Additionally, you must adhere to the specific local regulations outlined below:

  • No gambling and betting messages

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