@Jesper Rune Larsen Thanks for asking question!
Sending SMS to any recipient requires getting a phone number. Choosing the right number type is critical to the success of your messaging campaign.
Azure Communication Services enables you to send SMS using various sender types - toll-free number (1-8XX), short codes (12345), and alphanumeric sender ID (CONTOSO).
For Denmark- Dynamic Alphanumeric Sender ID is supported - Enable dynamic alphanumeric sender ID