SendGrid incident: Voice Call Failures from Network Subscribers to a Subset of Twilio Thailand Phone Numbers

Affected components

• Voice, APAC

1. resolvedOct 20, 2026, 12:14 UTC

   The incident has been resolved and voice calls from network subscribers to a subset of Twilio Thailand Phone Numbers are operating normally.

2. monitoringOct 20, 2026, 08:13 UTC

   We have observed a recovery in voice calls from network subscribers to a subset of Twilio Thailand Phone Numbers and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.

3. monitoringOct 20, 2026, 06:12 UTC

   We have observed a recovery in voice calls from network subscribers to a subset of Twilio Thailand Phone Numbers and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

4. identifiedOct 20, 2026, 05:12 UTC

   Twilio customers may be experiencing voice call failures from network subscribers to a subset of Twilio Thailand Phone Numbers. 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.

5. identifiedOct 20, 2026, 03:12 UTC

   Twilio customers may be experiencing voice call failures from network subscribers to a subset of Twilio Thailand Phone Numbers. 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.

6. identifiedOct 20, 2026, 02:06 UTC

   Twilio customers may be experiencing voice call failures from network subscribers to a subset of Twilio Thailand Phone Numbers. 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.

7. investigatingOct 20, 2026, 02:05 UTC

   Twilio customers may be experiencing voice call failures from network subscribers to a subset of Twilio Thailand Phone Numbers. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

What APIStatus.watch saw

• Oct 20, 2026, 12:30 UTCoperational → unknown
• Oct 20, 2026, 12:35 UTCunknown → operational

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• Twilio: Voice Call Post Dial Delay from a Subset of Twilio Phone Numbers to ThailandMinor · Oct 12, 2026, 11:53 UTC

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SendGrid reported 459 incidents in the last 90 days, 2 of them major or critical. A typical incident lasted 6h 1m. See SendGrid's uptime and incident history