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Outage in Zipwhip

SMS Delivery Report Delays When Sending to Telstra Network in Australia

Resolved Minor
February 09, 2026 - Started about 2 months ago - Lasted about 5 hours
Official incident page

Incident Report

Our monitoring systems have detected a potential issue with SMS delivery report delays from Twilio to Telstra Network in Australia. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

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Latest Updates ( sorted recent to last )
RESOLVED about 2 months ago - at 02/10/2026 06:02AM

We are no longer experiencing SMS delivery delays when sending messages to sending messages to Telstra Network in Australia. This incident has been resolved.

MONITORING about 2 months ago - at 02/10/2026 04:02AM

We are observing recovery in SMS delivery delays when sending messages to Telstra Network in Australia. 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 2 months ago - at 02/10/2026 02:29AM

We are experiencing delays in receiving message delivery reports when sending to Telstra Network in Australia. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING about 2 months ago - at 02/10/2026 02:28AM

We are experiencing delays in receiving message delivery reports when sending to Telstra Network in Australia. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hour or as soon as more information becomes available.

INVESTIGATING about 2 months ago - at 02/10/2026 01:28AM

We are experiencing delays in receiving message delivery reports when sending to Telstra Network in Australia. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.

INVESTIGATING about 2 months ago - at 02/10/2026 01:23AM

Our monitoring systems have detected a potential issue with SMS delivery report delays from Twilio to Telstra Network in Australia. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

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