22 October 2025

Endesa launches a phone number search tool on its website to help customers identify fraudulent calls

  • The company reports a worrying increase in fraudulent practices by other energy retailers that are causing unauthorised contract cancellations.
  • The detected irregularities include impersonation, misleading promises, financial threats, and improper charges.
  • Endesa strengthens its commitment to transparency, ethical business practices, and the active protection of consumer rights.
  • The company has launched an informational campaign on social media, complemented by practical tips and alert messages on its corporate blog.
  • The company confirms its dedication to consumer protection, transparency, and fair competition in the energy market.

 

Endesa has detected a concerning increase in fraudulent practices in the market, which have led to customers being switched from their energy contracts without their consent. These practices —affecting both residential and small business customers— represent a serious violation of consumer rights and distort the proper functioning of the electricity market.

To help protect its customers, the company has launched a set of informative measures. The most recent is a new digital tool on its website that allows users to check whether a phone number from which they received a call is authorised by Endesa Energía. The goal is clear: to protect consumers from phone scams and abusive sales practices that involve company identity impersonation.

This search tool, available in the section ‘Check who called you’, is part of Endesa’s strategy to reinforce customer security and trust in a context of increasing fraudulent activity by fake energy consultancies and unauthorised retailers.

 

Impersonation, threats, and misleading tactics

Among the fraudulent practices detected are:

  • Impersonation: sales agents falsely claiming to represent Endesa or a related company, offering discounts or better financial alternatives regarding the retailer's contracts.
  • Misleading promises: telling customers they will ‘automatically return’ to Endesa after a trial period with another company.
  • Financial threats and coercion: calls from fake ‘legal departments’ pressuring customers to accept new contracts.
  • Improper charges and lack of transparency during the contracting process.

Strengthening awareness on social media: #StopPhishing campaign

The launch of the search tool has been accompanied by an informational campaign on social media through Endesa Clientes’ official account, with key messages such as:

  •  ‘#Phishing is everywhere —by SMS, email, and even WhatsApp. We will never ask for your credit card details.’
  • ‘Can you spot #phishing when you see it? Spelling errors, suspicious emails, and requests for banking information are all warning signs.’
  • ‘ATTENTION! We’ve detected impersonation attempts on Instagram and Facebook. Ignore any account that isn’t official.’

These posts are part of a broader effort to raise awareness of fraudulent practices. The initiative also includes radio spots, information on Endesa’s website, and content in the company’s new digital magazine ON, sent directly to customers. Endesa has also shared practical tips and resources on its corporate blog detailing the most common types of fraud and how to act against them. Additionally, the company has sent an informative email to all customers and included a reminder in their energy bills highlighting the new search tool.

 

Commitment to transparency

Endesa reiterates its firm commitment to transparency, ethical business practices, and the active defence of consumer rights. The company will continue working closely with public administrations, consumer associations, and the broader energy sector to eliminate these unfair practices. Its ultimate goal is to promote an energy model built on trust, free choice, and respect for customers.

 

About Endesa

Endesa is the leading electricity company in Spain and the second largest in Portugal. It is also the second largest gas operator in the Spanish market. Endesa operates an integrated business model spanning electricity generation, distribution, and supply. Furthermore, the company offers value-added services focused on the electrification of energy use for households, businesses, and public administrations. Endesa is committed to the United Nations’ SDGs and corporate social responsibility. In the latter area, it also operates through the Endesa Foundation. Our team comprises around 9,000 employees. Endesa is part of Enel.

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