SUPPORT.TWILIO.COM END OF LIFE NOTICE: This site,, is scheduled to go End of Life on February 27, 2024. All Twilio Support content has been migrated to, where you can continue to find helpful Support articles, API docs, and Twilio blog content, and escalate your issues to our Support team. We encourage you to update your bookmarks and begin using the new site today for all your Twilio Support needs.

Documents Required and Instructions to Register Your Alphanumeric Sender ID in Cuba

Before we begin

Due to regulatory requirements, there is sometimes a need for documents to be signed by customers to ensure that registrations are done on behalf of customers that have the right to use the Sender ID. This serves to ensure that traffic is coming from legitimate sources and minimizes any potential misuse.

This article outlines the documentation requirements for a pre-registration in Cuba.


Things to note

  • All Sender IDs may only contain uppercase or lowercase letters. Operators in Cuba do not support combinations of letters and numbers, or Numeric Sender IDs. 
  • Promotional Senders are not supported for Cuba as of November 2021.



To register your Alphanumeric Sender ID, the Cuba network operator Cubacel require that you provide the following document: 

  • Cuba Requirement Form

Upload the forms to the Twilio Alphanumeric Sender ID Registration Form.

Required fields include:

  • Name of the APP: (Sender ID Requested)
  • Company: (Company Name)
  • Country of Origin: (Country where the company is located)
  • Sample SMS:
  • Description: (Description of the service)
  • Intention of application usage in Cuba:
  • Type of Traffic: Transactional
  • Commercial Brand: (Example: Legal name Google LLC. but the commercial brand Nest (Nest is one of the product of Google))
  • Website: (Company URL)
  • CEO Name:
  • Identification of CEO (ID, passport number, driver's licence):
  • Nationality of CEO:
  • CEO email address:

Note that local provider is very strict with description part and CEO details. Please try to be as detailed as possible in the "Description" section.

CEO Details are also being checked and if provider is not able to find confirmation of the details on CEO, it can be rejected.


Have more questions? Submit a request
Powered by Zendesk