Endesa has decided to add to its own verifier all the phone numbers with prefix 400 from which it carries out its commercial dealings, with the intention of combating third-party fraudsters who pose as the company in their calls.
Since October 17, the numbers that begin with 400 are used in Spain to identify calls of a commercial nature. This is a nine-digit national numbering system specifically reserved for the issuance of this type of communication.
However, the utility company clarifies that the 400 prefix itself does not make it possible to know which company is calling, nor does it ensure that the person on the other side of the phone actually represents the company they claim to be. Thanks to this initiative, customers will be able to access Endesa’s verifier (the web “Comprueba quién te ha llamado”) and confirm whether the received call actually belongs to the company.