TeleSign incident
Operator Alert - Thailand (TH) - Advanced Info Service PLC (AIS GSM) (520/01;03) - 11/3/26
Resolved after 53 minutes, affecting APAC - All countries and Thailand, on November 3, 2026.
Start Time: 5:37 AM PST - 11/3/26 End Time: 6:17 AM PST - 11/3/26 Network issues previously reported for Advanced Info Service PLC (AIS GSM) (520/01;03) from Thailand (TH) have been resolved. Advanced Info Service PLC (AIS GSM) (520/01;03) end users should no longer experience delays receiving SMS messages as all services are back to functioning properly. SF 01265121
Affected components
Update timeline
- investigating Nov 03, 2026, 01:50 PM UTC
Start Time: 1:37 AM PST - 11/3/26 End Time: Ongoing We are currently observing a quality degradation towards Advanced Info Service PLC (AIS GSM) (520/01;03) in Thailand (TH), which may cause delays in SMS delivery. We will inform you once the operator has come to a resolution. SF 01265121
- resolved Nov 03, 2026, 02:43 PM UTC
Start Time: 5:37 AM PST - 11/3/26 End Time: 6:17 AM PST - 11/3/26 Network issues previously reported for Advanced Info Service PLC (AIS GSM) (520/01;03) from Thailand (TH) have been resolved. Advanced Info Service PLC (AIS GSM) (520/01;03) end users should no longer experience delays receiving SMS messages as all services are back to functioning properly. SF 01265121
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