Outage in Zipwhip

SMS Delivery Delays to Multiple Network in United States of America via Subset of Shortcodes

Resolved Minor

March 07, 2026 - Started about 1 month ago - Lasted about 11 hours
Official incident page

Incident Report

Twilio customers may be experiencing SMS delivery delays and SMS delivery receipt delays from a subset of Twilio Short Codes to ISP Telecom network subscribers in the United States. 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 about 1 month ago - at 03/07/2026 10:38PM

We are no longer experiencing SMS delivery delays when sending messages from a subset of Twilio Short Codes to multiple networks in the United States of America. This incident has been resolved.

MONITORING about 1 month ago - at 03/07/2026 08:41PM

We are observing recovery in SMS delivery delays when sending messages from a subset of Twilio Short Codes to multiple networks in the United States of America. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING about 1 month ago - at 03/07/2026 06:25PM

Twilio customers may continue to experience SMS delivery delays and SMS delivery receipt delays from a subset of Twilio Short Codes to multiple networks in the United States of America. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 8 hours or as soon as more information becomes available.

INVESTIGATING about 1 month ago - at 03/07/2026 02:27PM

Twilio customers may continue to experience SMS delivery delays and SMS delivery receipt delays from a subset of Twilio Short Codes to ISP Telecom network subscribers in the United States. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 4 hours or as soon as more information becomes available.

INVESTIGATING about 1 month ago - at 03/07/2026 12:29PM

Twilio customers may continue to experience SMS delivery delays and SMS delivery receipt delays from a subset of Twilio Short Codes to ISP Telecom network subscribers in the United States. Our team is actively investigating this 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.

INVESTIGATING about 1 month ago - at 03/07/2026 11:25AM

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