Outage in Telesign

Quality degradation - Mexico (MX) - ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) - 3/24/26

Resolved Minor

March 25, 2026 - Started about 7 hours ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

Telesign experienced quality degradation affecting SMS message delivery to ATT network users (including Iusacell, Unefon, and Nextel) in Mexico starting at 22:36 PST on 3/24/26. Customers sending SMS messages to these ATT network subscribers encountered difficulties with message delivery. The incident was identified and teams were working on resolution, though the status remained ongoing at the time of the last update.

Date: 3/24/26 Start Time: 22:36 PST End Time: Ongoing Summary: We currently experience quality degradation toward Mexico (MX) - ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080). Customers that send SMS messages to ATT (Iusacell&Unefon&Nextel) users may notice a difficulties in message delivery. Our competent teams are working on solving this issue. We'd like to apologize for any inconvenience and appreciate your patience during this service window. If you have any questions, please contact us at support@telesign.com. SF 01148556

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Latest Updates ( sorted recent to last )

RESOLVED about 6 hours ago - at 03/25/2026 08:27AM

Date: 3/24/26
Start Time: 22:36 PST
End Time: 00:30 AM PST

Summary:
Previously experienced quality degradation toward Mexico (MX) - ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080) is resolved.

We'd like to apologize for any inconvenience.

If you have any questions, please contact us at support@telesign.com.

IDENTIFIED about 7 hours ago - at 03/25/2026 07:25AM

Date: 3/24/26
Start Time: 22:36 PST
End Time: Ongoing

Summary:
We currently experience quality degradation toward Mexico (MX) - ATT (Iusacell&Unefon&Nextel) (334/01;010;04;040;05;050;09;090;07;070;080). Customers that send SMS messages to ATT (Iusacell&Unefon&Nextel) users may notice a difficulties in message delivery.

Our competent teams are working on solving this issue.

We'd like to apologize for any inconvenience and appreciate your patience during this service window.

If you have any questions, please contact us at support@telesign.com.

SF 01148556

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