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Outage in Twilio

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

Resolved Minor
March 13, 2026 - Started about 7 hours ago - Lasted about 3 hours
Official incident page

Incident Report

Summary AI Generated

Twilio experienced SMS delivery delays from a subset of short codes to major US mobile networks (Verizon, AT&T, T-Mobile) and Puerto Rico for 2.5 hours. The issue initially affected only Verizon subscribers but expanded to include other carriers before being resolved. Service was restored to normal operations after the team identified and fixed the underlying cause.

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Verizon 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 about 5 hours ago - at 03/13/2026 11:01PM

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

MONITORING about 6 hours ago - at 03/13/2026 09:36PM

We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Multiple Networks in the United States and Puerto Rico and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

MONITORING about 7 hours ago - at 03/13/2026 09:09PM

We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Verizon, AT&T, and T-Mobile network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

IDENTIFIED about 7 hours ago - at 03/13/2026 08:53PM

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Verizon, T-Mobile and AT&T 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.

IDENTIFIED about 7 hours ago - at 03/13/2026 08:41PM

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Verizon and 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 about 7 hours ago - at 03/13/2026 08:32PM

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Verizon 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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