Outage in Telesign

Operator Service Alert - Mexico (MX) - ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) - 12/21/25

Resolved Minor
December 21, 2025 - Started about 11 hours ago - Lasted about 2 hours
Official incident page

Incident Report

Issue: Mexico (MX) - ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) Quality degradation Start Time: 02:49 AM PST - 12/21/25 Summary: We received notification that ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) from Mexico (MX) is currently experiencing network issues, and this may cause a delay in the delivery of SMS messages. Telesign is engaged with the operators 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. 01105829

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Latest Updates ( sorted recent to last )
RESOLVED about 9 hours ago - at 12/21/2025 12:51PM

Start Time: 02:49 AM PST - 12/21/25
End Time: 04:50 AM PST - 12/21/25

We received notification that the network issues previously reported by ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) from Mexico (MX) have been resolved. ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) end users should no longer experience delays receiving SMS messages as all services are back to functioning properly.

SF 01105829

INVESTIGATING about 11 hours ago - at 12/21/2025 10:52AM

Issue: Mexico (MX) - ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080)

Quality degradation

Start Time: 02:49 AM PST - 12/21/25


Summary:

We received notification that ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) from Mexico (MX) is currently experiencing network issues, and this may cause a delay in the delivery of SMS messages.

Telesign is engaged with the operators 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.

01105829

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