TeleSign incident

Quality degradation - United States - T-Mobile

Minor Resolved View vendor source →

TeleSign experienced a minor incident on May 20, 2026 affecting United States, lasting 2h 53m. The incident has been resolved; the full update timeline is below.

Started
May 20, 2026, 05:15 PM UTC
Resolved
May 20, 2026, 08:08 PM UTC
Duration
2h 53m
Detected by Pingoru
May 20, 2026, 05:15 PM UTC

Affected components

United States

Update timeline

  1. investigating May 20, 2026, 05:15 PM UTC

    Issue: US Operators Quality degradation Date: 5/20/26 Start Time: 10:04 AM PST End Time: Ongoing Summary: We currently experience quality degradation toward United States - T-Mobile. SMS messages towards these operator(s) may face delays or difficulties in delivery. Telesign is engaged with carrier partners for updates on resolution. We'd like to apologize for any inconvenience and appreciate your patience during this service interruption. If you have any questions, please contact [email protected]. SF 01174380

  2. resolved May 20, 2026, 08:08 PM UTC

    Start Time: 10:04 AM PST - 5/20/26 End Time: 10:04 AM PST - 5/20/26 We received notification that the network issues previously reported by United States - T-Mobile from United States have been resolved. United States - T-Mobile end users should no longer experience delays receiving SMS messages as all services are back to functioning properly. SF 01174380