Outage in Telesign

Quality degradation - United States (US) - United States Cellular Corp (311/220;580)

Resolved Minor

July 17, 2025 - Started 9 months ago - Lasted about 5 hours
Official incident page

Incident Report

Issue: US Operator - United States (US) - United States Cellular Corp (311/220;580) Start Time: 10:00 PDT - 07/17/25 End Time: Ongoing Summary: We currently experience quality degradation toward United States (US) - United States Cellular Corp (311/220;580) SMS messages towards these operator 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 support@telesign.com. SF - 01027833

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Latest Updates ( sorted recent to last )

RESOLVED 9 months ago - at 07/17/2025 10:03AM

Issue: US Operator - United States (US) - United States Cellular Corp (311/220;580)

Start Time: 10:00 PM PDT - 07/17/25
End Time: 3:03 AM PDT - 07/17/25

We received notification that the network issues previously reported by United States Cellular Corp (311/220;580) from United States (US) have been resolved. United States Cellular Corp (311/220;580) end users should no longer experience delays receiving SMS messages as all services are back to functioning properly.

SF - 01027833

INVESTIGATING 9 months ago - at 07/17/2025 05:23AM

Issue: US Operator - United States (US) - United States Cellular Corp (311/220;580)

Start Time: 10:00 PDT - 07/17/25
End Time: Ongoing

Summary:

We currently experience quality degradation toward United States (US) - United States Cellular Corp (311/220;580)
SMS messages towards these operator 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 support@telesign.com.

SF - 01027833

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