New Regulations on Business Communications: What You Need to Know from 7 June 2025

Starting 7 June 2025, a new regulation under Order TDF/149/2025 will come into effect in Spain, introducing stricter rules on how companies can make phone calls and send SMS messages to customers. These measures are designed to prevent identity fraud, improve traceability, and build greater trust in business communications.

Here’s a clear breakdown of what is changing and how it may affect you as a customer.

Why has this regulation been introduced?

The increasing number of fraudulent phone calls and text messages, often involving identity theft and fake caller IDs, has prompted the government to take action. This regulation aims to:

• Ensure companies use only authorised and identifiable numbers

• Block suspicious or misleading communications

• Provide customers with clearer and safer interactions with businesses

What changes take effect from 7 June 2025?

1. Stricter rules on voice calls

• No mobile numbers for business calls

  From 7 June, businesses will no longer be allowed to use mobile numbers (starting with 6 or 7) for:

  • Customer service calls

  • Unsolicited marketing or commercial calls

   

• Only assigned, authorised numbers can be used

  All outgoing business calls must use a number that has been officially assigned, attributed or granted to the company. Any calls from:

  • An unassigned number

  • An empty caller ID (CLI)

  • A number with an invalid or non-compliant format

    will be automatically blocked by telecom providers.

   

• Use of 800 and 900 numbers is encouraged

  From 7 June, companies should use 800 or 900 numbers for customer service and marketing purposes. These numbers are nationally recognised, properly regulated, and provide reassurance to customers receiving the call.

• Landline numbers must also be assigned and verifiable

  If a business uses a landline number (e.g., starting with 8 or 9), it must be a number that has been correctly attributed to the company. Calls made using landline numbers that are not properly assigned or do not comply with the national numbering plan will also be blocked.

2. New requirements for SMS messaging

• Only messages from authorised numbers are allowed

  Any business sending SMS campaigns must do so from a sender number that has been:

  • Officially attributed or assigned to the company

  • Properly formatted and traceable

   

  SMS messages sent from an unassigned number, an empty sender field, or any unauthorised source will be blocked.

• Sender alias validation to be introduced

  In the near future, a validation process for SMS sender aliases (names shown as the sender instead of a number) will be introduced. This will ensure that the name appearing in your message inbox accurately reflects the true identity of the sender. Further updates will be provided as this process is implemented.

How does this benefit you?

These measures are intended to protect you, as a customer, from fraudulent or misleading communications. The main benefits include:

• Improved safety: Reduced risk of scams and impersonation.

• Clearer communication: You’ll know who is contacting you and from where.

• Greater trust: Calls and messages from verified sources only.

What this means for our customers

At Direct Telecom, we are fully compliant with these changes. Starting 7 June 2025:

• We will no longer contact you using mobile numbers for customer service or commercial purposes.

• Any voice calls from us will come from authorised landline (922711003) or possibly a 800/900 number.

• SMS messages will only be sent from officially verified sender numbers.

We are committed to transparent and secure communication, and we’ll continue to keep you informed as further measures, such as sender alias validation, are rolled out.