TeleSign incident
Operator Alert - Mexico (MX) - ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) - 5/21/26
Resolved after 57 minutes, affecting NA & LATAM - All countries and Mexico, on May 22, 2026.
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
Affected components
Update timeline
- investigating May 22, 2026, 12:07 AM UTC
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
- resolved May 22, 2026, 01:05 AM UTC
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
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