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Outage in Twilio

SMS Delivery Delays from a Subset of Twilio Short Codes to Multiple Networks in United States

Resolved Minor
May 13, 2026 - Started 27 days ago - Lasted about 1 hour
Official incident page

Incident Report

Summary AI Generated

Twilio experienced SMS delivery delays from a subset of short codes to multiple mobile networks in the United States, initially affecting T-Mobile subscribers before expanding to other carriers. The issue impacted SMS short code services in North America for 1.3 hours. Twilio's team identified the root cause and restored normal SMS delivery operations.

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

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Latest Updates ( sorted recent to last )
RESOLVED 27 days ago - at 05/13/2026 02:40PM

The incident has been resolved and SMS delivery from a subset of Twilio Short Codes to affected networks in the United States is operating normally.

IDENTIFIED 27 days ago - at 05/13/2026 01:53PM

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to network subscribers on multiple networks in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

IDENTIFIED 27 days ago - at 05/13/2026 01:36PM

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

INVESTIGATING 27 days ago - at 05/13/2026 01:27PM

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to T-Mobile network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

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