Twilio incident
SMS Delivery Delays and Failures from a Subset of Twilio Phone Numbers to Rakuten Japan
Resolved after 5 hours 2 minutes, affecting SMS, APAC, on May 29, 2026.
The incident has been resolved and SMS delivery from a subset of Twilio Phone Numbers to Rakuten network subscribers in Japan is operating normally.
Affected components
Update timeline
- investigating May 29, 2026, 02:49 AM UTC
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Phone Numbers to Rakuten network subscribers in Japan. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
- identified May 29, 2026, 02:59 AM UTC
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Phone Numbers to Rakuten network subscribers in Japan. 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 May 29, 2026, 04:00 AM UTC
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Phone Numbers to Rakuten network subscribers in Japan. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
- identified May 29, 2026, 06:00 AM UTC
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Phone Numbers to Rakuten network subscribers in Japan. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
- monitoring May 29, 2026, 06:01 AM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Phone Numbers to Rakuten network subscribers in Japan and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
- resolved May 29, 2026, 07:52 AM UTC
The incident has been resolved and SMS delivery from a subset of Twilio Phone Numbers to Rakuten network subscribers in Japan is operating normally.
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