Outage in Zipwhip

SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to Liberty Mobile Puerto Rico

Resolved Minor

May 07, 2026 - Started 3 days ago - Lasted about 4 hours
Official incident page

Incident Report

Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Liberty Mobile network subscribers in Puerto Rico. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. 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 3 days ago - at 05/07/2026 10:03PM

The incident has been resolved and SMS delivery receipts from a subset of Twilio Short Codes to Liberty Mobile network subscribers in Puerto Rico are operating normally.

MONITORING 3 days ago - at 05/07/2026 08:02PM

We have observed a recovery in SMS delivery receipts from a subset of Twilio Short Codes to Liberty Mobile network subscribers in Puerto Rico and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

IDENTIFIED 3 days ago - at 05/07/2026 07:31PM

Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Liberty Mobile network subscribers in Puerto Rico. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hours or as soon as more information becomes available.

IDENTIFIED 3 days ago - at 05/07/2026 06:28PM

Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to Liberty Mobile network subscribers in Puerto Rico. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.

INVESTIGATING 3 days ago - at 05/07/2026 06:12PM

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