SendGrid incident: Silent Network Authentication (SNA) Failure Increase on Indosat in Indonesia

Affected components

• Verify Silent Network Auth

1. identifiedOct 29, 2026, 00:19 UTC

   Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on Indosat in Indonesia. API transactions may temporarily fail over to secondary methods like SMS OTP. 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.

2. identifiedOct 28, 2026, 23:19 UTC

   Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on Indosat in Indonesia. API transactions may temporarily fail over to secondary methods like SMS OTP. 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.

3. investigatingOct 28, 2026, 19:27 UTC

   Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on Indosat in Indonesia. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 8 hours or as soon as more information becomes available.

4. investigatingOct 28, 2026, 15:21 UTC

   Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on Indosat in Indonesia. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 4 hours or as soon as more information becomes available.

5. investigatingOct 28, 2026, 13:21 UTC

   Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on Indosat in Indonesia. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 2 hours or as soon as more information becomes available.

6. investigatingOct 28, 2026, 12:14 UTC

   Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on Indosat in Indonesia. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 1 hour or as soon as more information becomes available.

What APIStatus.watch saw

• Oct 28, 2026, 11:20 UTCoperational → unknown
• Oct 28, 2026, 11:25 UTCunknown → operational
• Oct 28, 2026, 13:45 UTCoperational → unknown
• Oct 28, 2026, 13:50 UTCunknown → operational
• Oct 28, 2026, 18:10 UTCoperational → unknown
• Oct 28, 2026, 18:15 UTCunknown → operational
• Oct 28, 2026, 20:50 UTCoperational → unknown
• Oct 28, 2026, 20:55 UTCunknown → operational
• Oct 29, 2026, 01:35 UTCoperational → unknown

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• Sanity: Studio & Dashboard timeouts for some customersMajor · Oct 28, 2026, 12:16 UTC
• Shippo: DPD UK Service DegradationMajor · Oct 28, 2026, 15:30 UTC
• Datadog: Metrics query are disruptedMajor · Oct 28, 2026, 16:10 UTC
• Cursor: Multiple services degradedMajor · Oct 28, 2026, 21:15 UTC
• Shippo: La Poste Service DegradationMajor · Oct 28, 2026, 23:00 UTC
• Akamai: Edge Delivery issues between Indonesia and SingaporeMinor · Oct 25, 2026, 13:44 UTC
• Linode: Connectivity Issue between ID-CGK (Jakarta) and SG-SIN-2 (Singapore 2)Minor · Oct 25, 2026, 13:54 UTC

How often does SendGrid have incidents?

SendGrid reported 504 incidents in the last 90 days, 2 of them major or critical. A typical incident lasted 6h 9m. See SendGrid's uptime and incident history