Numbering, Addressing and Naming

This section includes information on the planning, allocation, allocation and use of public numbering, addressing and naming resources, as well as the applicable regulations and characteristics of the different numbering ranges of the National Telephone Numbering Plan.

Numbers, addresses and names constitute a limited public resource necessary for the identification of users and the provision of telecommunications services. The current legal framework guarantees access to these public resources by operators in conditions of transparency and non-discrimination, also ensuring a rational use of them and the defense of users’ rights.

The legal framework of numbering, addressing and naming is determined, in general, by Chapter VII of Title II of Law 11/2022, of June 28, General of Telecommunications, by Title IV of the Regulation on electronic communications markets, access to networks and numbering, approved by Royal Decree 2296/2004, of December 10, and by the National Plan of Telephone Numbering, as well as by the provisions dictated for its development and updating.

The National Telephone Numbering Plan establishes the structure and organization of the public numbering resources used for the provision of electronic communications services, defining the different numbering ranges and the services to which they can be used.

It also determines the general conditions for the use of these resources and the territorial organization of the geographical numbering.

The Plan is defined as a 9-digit closed numbering plan, which means that the full national number must be dialed for all calls, with no possibility of abbreviated local dialing.

The user guide on the National Numbering Plan presents in detail the information regarding the different ranges of numbering attributed, the characteristics of each service and the general conditions of use of public numbering resources.