Overview

• A major telecom outage began early on May 20, 2025, affecting fixed-line and internet services across several Spanish regions, including Andalusia, Galicia, the Basque Country, and the Valencian Community.
• Telefónica attributed the disruption to ongoing network maintenance and stated that efforts are underway to fully restore services as soon as possible.
• Emergency number 112 was temporarily unavailable in affected areas, prompting regional authorities to activate alternative contact numbers for critical services.
• Downdetector reported the outage started shortly after 2 a.m., with 72% of reports concerning fixed internet issues and 18% indicating a complete loss of signal.
• The incident follows an April 28 electricity blackout, highlighting vulnerabilities in Spain's critical infrastructure and sparking discussions on improving contingency planning.