Telesign System: Operator Alert - Russia (RU) - Mobile TeleSystems (MTS) (250/01) 09/19/26

Telesign System · telesign.comImpact: minorResolved2026-09-19 09:18 UTC

Public — what happened

Summary

Start Time: 02:10 PDT - 09/19/26 End Time: Ongoing We are currently observing a quality degradation towards Mobile TeleSystems (MTS) (250/01) in Russia (RU), which may cause delays in SMS delivery. We will inform you once the operator has come to a resolution. SF 01238766

Timeline

Started — 2026-09-19 09:18 UTC
Last update — 2026-09-19 09:18 UTC
Resolved — 2026-09-19 13:21 UTC

Source of record: provider status page. Mirrored as reported; times in UTC.

With SquidGrid — where it starts on the route

Independent path health

The status page is the symptom. SquidGrid measures the paths that reach Telesign System against their own baselines — whether the routes carrying your traffic degraded, at which handoff, and who owns that stretch.

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