TeleSign incident
Quality degradation - China (CN) - Multiple MNOs - 9/21/26
TeleSign experienced a minor incident on September 21, 2026 affecting China, lasting 2h 5m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Sep 21, 2026, 09:15 AM UTC
Date: 9/21/26 Start Time: 2:05 PM PDT End Time: Ongoing Summary: We currently experience quality degradation toward China (CN) Multiple MNOs. Customers that send SMS messages to Multiple MNOs users may notice a difficulties in message delivery. Our competent teams are working on solving this issue. We'd like to apologize for any inconvenience and appreciate your patience during this service window. If you have any questions, please contact us at [email protected].
- resolved Sep 21, 2026, 11:21 AM UTC
Start Time: 2:05 PM PDT - 9/21/26 End Time: 2:43 PM PDT - 9/21/26 Network issues previously reported for Multiple MNOs from China (CN) have been resolved. Multiple MNOs end users should no longer experience delays receiving SMS messages as all services are back to functioning properly. SF 01239390