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Required regulatory documentation for alphanumerics ID purchase

Regulatory requirements for Alphanumeric Sender IDs (ASIDs) vary by country. In the countries listed below, you must complete registration and submit supporting documentation before using an ASID for messaging. If you use an unregistered ASID in these countries, messages may be blocked or fail to deliver.

Review each country’s requirements to identify any mandatory ASID registrations. After you prepare the required materials, email to start the ASID registration process. If you have questions, contact the same email address.

For more information about provisioning ASID and enabling it use post completing registration, see .