SendGrid incident: SMS Delivery Failures from United Kingdom to a Subset of Twilio Long Codes

Affected components

• SMS, Europe

1. resolvedOct 22, 2026, 19:05 UTC

   The incident has been resolved and SMS delivery from network subscribers in the United Kingdom to a subset of Twilio Long Codes is operating normally.

2. monitoringOct 22, 2026, 17:04 UTC

   We have observed a recovery in SMS delivery from the United Kingdom to a subset of Twilio Long Codes and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

3. identifiedOct 22, 2026, 08:34 UTC

   Twilio customers may be experiencing SMS delivery delays and failures from network subscribers to a subset of Twilio United Kingdom Long Codes. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.

4. identifiedOct 22, 2026, 00:33 UTC

   Twilio customers may be experiencing SMS delivery failures from network subscribers in the United Kingdom to a subset of Twilio Long Codes. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.

5. identifiedOct 21, 2026, 20:33 UTC

   Twilio customers may be experiencing SMS delivery failures from network subscribers in the United Kingdom to a subset of Twilio Long Codes. 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.

6. identifiedOct 21, 2026, 18:32 UTC

   Twilio customers may be experiencing SMS delivery failures from network subscribers in the United Kingdom to a subset of Twilio Long Codes. 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.

7. identifiedOct 21, 2026, 17:32 UTC

   Twilio customers may be experiencing SMS delivery failures from network subscribers to Twilio United Kingdom Long Codes. 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.

8. identifiedOct 21, 2026, 16:32 UTC

   Twilio customers may be experiencing SMS delivery delays from network subscribers in the United Kingdom to a subset of Twilio Long Codes. 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.

9. investigatingOct 21, 2026, 16:10 UTC

   Twilio customers may be experiencing SMS delivery delays from network subscribers to a subset of Twilio United Kingdom Long Codes. 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 22, 2026, 13:31 UTCoperational → unknown
• Oct 22, 2026, 13:36 UTCunknown → operational

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