Toll-free numbers in Spain play a crucial role in enhancing business communication by providing customers with a cost-free means to access support and services. These numbers, designated by the prefix “900,” are widely utilized across various industries to facilitate seamless and free communication with customers. In this comprehensive guide, we will delve into how toll-free numbers work in Spain, potential charges associated with these calls, and their accessibility for callers both within the country and from abroad.

How do toll-free numbers work in Spain?

Toll-free numbers in Spain, marked by the prefix “900,” are extensively used by businesses to offer free customer support and assistance. When a customer dials a toll-free number, the charges for the call are borne by the business that owns the number, ensuring that customers can connect without incurring any expenses.

Regulatory Authority: Comisión del Mercado de las Telecomunicaciones (CMT)

Are there any charges associated with calling toll-free numbers in Spain?

No, there are no charges associated with calling toll-free numbers with the prefix “900” in Spain. The business that owns the toll-free number is responsible for covering the costs of these incoming calls.

Are toll-free numbers universally free from all networks in Spain?

Yes, toll-free numbers with the prefix “900” are universally free from all landline and mobile phone networks in Spain. Customers can call these numbers from any network without incurring any charges.

How are toll-free calls billed for mobile users in Spain?

Toll-free calls from mobile phones are generally free for customers on monthly plans with inclusive minutes. However, if a customer has used up their inclusive minutes or is on a prepaid plan, the call may be subject to the standard call rates set by their mobile service provider.

Can toll-free numbers be accessed from abroad in Spain?

Toll-free numbers with the prefix “900” in Spain are primarily intended for domestic callers and may not be accessible from abroad. Calling a Spanish toll-free number from another country could result in an international call charge for the caller. Additionally, some toll-free numbers may not be reachable from certain foreign networks or regions. For international customers or businesses with a global clientele, it is advisable to provide alternative non-toll-free contact options for international callers. You can also utilise our in-app or click-to-call service if you wish to provide global toll-free calling to customers.

Real-World Example:

Let’s consider a scenario where a customer in Spain needs assistance with a product from a company’s customer service department. The company provides a toll-free helpline with a “900” number. The customer dials the toll-free number from their mobile phone, which is on a monthly plan with inclusive minutes. In this case, the customer will not incur any charges for the call, as it is covered within their monthly allowance. The business will be responsible for the call costs.

Practical Tips:

  • Check your mobile phone plan: Ensure you have inclusive minutes available before calling a toll-free number to avoid unexpected charges.
  • International callers: If you are calling from abroad, use alternative contact numbers provided by the business, as toll-free numbers may not be accessible internationally.
  • Non-toll-free options: Businesses should consider offering alternative non-toll-free contact numbers for customers who may prefer non-geographic or international calling options.


Toll-free numbers in Spain serve as a valuable communication tool for businesses to optimize customer support and accessibility. By understanding how toll-free numbers work and the associated charges, businesses can enhance their customer service strategies. Customers can rely on toll-free numbers to seek assistance and make inquiries without any financial burden.