TeleSign incident

Operator Alert - Thailand (TH) - Advanced Info Service PLC (AIS GSM) (520/01;03) - 10/11/26

Major Resolved View vendor source →

TeleSign experienced a major incident on October 11, 2026 affecting Thailand, lasting 1h 36m. The incident has been resolved; the full update timeline is below.

Started
Oct 11, 2026, 11:58 AM UTC
Resolved
Oct 11, 2026, 01:35 PM UTC
Duration
1h 36m
Detected by Pingoru
Oct 11, 2026, 11:58 AM UTC

Affected components

Thailand

Update timeline

  1. investigating Oct 11, 2026, 11:58 AM UTC

    Start Time: 4:27 AM PST - 10/11/26 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 01251333

  2. resolved Oct 11, 2026, 01:35 PM UTC

    Start Time: 4:27 AM PST - 10/11/26 End Time: 6:33 AM PST - 10/11/26 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) end users should no longer experience delays receiving SMS messages as all services are back to functioning properly. SF 01251333