Governance
Ofcom probes BT and Three after mobile network failures
Ofcom is investigating BT and Three after recent mobile outages, raising questions about network resilience and reliability.

Headline
Ofcom is investigating BT and Three after recent mobile outages, raising questions about network resilience and reliability.
Context
UK communications regulator Ofcom has launched formal investigations into BT and Three after recent mobile network outages disrupted services for customers. The incidents, which occurred on different dates, affected voice calls, data connectivity and access to emergency services in some areas. Ofcom said it is examining the circumstances surrounding the outages, including how the failures occurred, how quickly services were restored and whether customers were kept adequately informed. The regulator is also reviewing whether both operators complied with existing rules on network resilience and incident reporting.
Evidence
Pending intelligence enrichment.
Analysis
BT’s outage was linked to a technical fault that impacted parts of its mobile network, while Three experienced a separate disruption that left some users without reliable connectivity. Both companies have acknowledged the incidents and said they are cooperating with Ofcom’s inquiries. The investigations do not automatically imply wrongdoing, but they give Ofcom the power to request detailed technical information and assess whether enforcement action is warranted. If breaches are identified, the regulator can impose penalties or require operators to take corrective measures to prevent similar failures in the future. Also Read: UK turns to Google for public sector AI delivery Also Read: UK sets new rules for satellite direct-to-cell services Mobile networks are critical national infrastructure, underpinning everything from everyday communications to emergency response and digital commerce. Outages, even if short-lived, can have serious consequences for individuals and businesses, particularly as reliance on mobile connectivity continues to grow.
Key Points
- Ofcom has opened investigations into BT and Three following separate mobile network outages affecting customers.
- The regulator is assessing whether the operators met resilience and reporting obligations during the disruptions.
Actions
Pending intelligence enrichment.




