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Outage in Telesign

Operator Alert - Mexico (MX) - ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) - 5/21/26

Resolved Minor
May 21, 2026 - Started 2 days ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

ATT Mexico (including Iusacell, Unefon, and Nextel networks) experienced network issues that caused delays in SMS message delivery for end users. The incident lasted 59 minutes from 5:05 PM to 5:59 PM PDT on May 21, 2026, and was resolved when the operator restored normal service functionality.

Start Time: 5:05 PM PDT - 5/21/26 End Time: Ongoing 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. We will inform you once the operator has come to a resolution. SF 01175280

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Latest Updates ( sorted recent to last )
RESOLVED 2 days ago - at 05/22/2026 01:05AM

Start Time: 5:05 PM PDT - 5/21/26
End Time: 5:59 PM PDT - 5/21/26

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 01175280

INVESTIGATING 2 days ago - at 05/22/2026 12:07AM

Start Time: 5:05 PM PDT - 5/21/26
End Time: Ongoing

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. We will inform you once the operator has come to a resolution.

SF 01175280

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