Outage in Telesign
Operator Alert - United Kingdom (GB) - Telefonica UK Limited (234/02;10;11) - 10/22/26
Resolved MajorIncident Report
Summary AI Generated
Telesign observed SMS delivery degradation affecting Telefonica UK Limited (O2) subscribers in the United Kingdom, beginning at 5:44 AM PST on October 22, 2026. The incident lasted approximately 1.6 hours, causing delays in SMS delivery to affected end users. The issue was fully resolved by 7:04 AM PST, with all services restored to normal operation.
Start Time: 05:44 AM PST - 10/22/26
End Time: Ongoing
We are currently observing a quality degradation towards Telefonica UK Limited (234/02;10;11) in United Kingdom (GB), which may cause delays in SMS delivery. We will inform you once the operator has come to a resolution.
SF 01258203
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Latest Updates ( sorted recent to last )
RESOLVED
2 days ago - at 10/22/2026 02:22PM
Start Time: 05:44 AM PST - 10/22/26
End Time: 07:04 AM PST - 10/22/26
Network issues previously reported for Telefonica UK Limited (234/02;10;11) in United Kingdom (GB) have been resolved. Telefonica UK Limited (234/02;10;11) end users should no longer experience delays receiving SMS messages as all services are back to functioning properly.
SF 01258203
INVESTIGATING
2 days ago - at 10/22/2026 12:52PM
Start Time: 05:44 AM PST - 10/22/26
End Time: Ongoing
We are currently observing a quality degradation towards Telefonica UK Limited (234/02;10;11) in United Kingdom (GB), which may cause delays in SMS delivery. We will inform you once the operator has come to a resolution.
SF 01258203
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