Endesa 400 calls: check who is really calling

A sales call from a number beginning 400 does not prove Endesa is on the line. In Spain, the energy company has added every 400 number it uses for sales calls to its online checker, it said on 9 November 2026. The move aims to tackle fraud by people posing as Endesa.

Since 17 October, numbers beginning 400 have identified sales calls in Spain. They are nine-digit national numbers, but the opening digits do not reveal which company is calling or prove that the caller represents the company they name.

Customers can use Endesa’s ‘Comprueba quién te ha llamado’ website to check whether a call they received really came from the company.

Topics: Economy

Source: Europa Press / Mallorca.com