Silent Network Authentication (SNA) Failure Increase on Indosat in Indonesia
Silent Network Authentication (SNA) on Indosat in Indonesia does not work. This affects the Verify Silent Network Auth component and the CARRIER NETWORK - Verify Silent Network Auth component. SendGrid has identified the cause and is working to resolve the issue.
State
Identified
Started
4 d ago
2026-10-28 12:14 UTC
Ongoing for
4 days
Worst impact
Degraded
Timeline
1 updateIdentified
4 days 100%
Updates
Times in UTCAs posted by SendGrid
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 24 hours or as soon as more information becomes available.
Affected components
2SendGrid in the last 90 days
Full historyIncidents in 90 days
50
Days with an incident
37
Median duration
9 h 43 min
This incident
11× the median
Other SendGrid incidents
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The incident has been resolved and API transactions for Silent Network Authentication (SNA) on KPN in Netherlands and Lookup API transactions involving KPN in Netherlands are operating normally.
SendGrid·Silent Network Authentication (SNA) Missing Redirects on Smart in Philippines
The incident has been resolved and API transactions for Silent Network Authentication (SNA) on Smart in Philippines are operating normally.
SendGrid·Automated Alert: Minimal Customer Impact
We have fully investigated the issue affecting verifications to Ivory Coast, and it was determined that the impact was limited to a small set of customers, who have been contacted individually to address any concerns. All systems are operational.
SendGrid·SMS and MMS Delivery Delays from Twilio to Altice United States
The incident has been resolved and SMS and MMS delivery from Twilio to Altice network subscribers in the United States is operating normally.
SendGrid·SMS Delivery Receipt Delays from Twilio to Multiple Networks in Multiple Countries Across Africa and Asia
The incident has been resolved and SMS delivery receipts from Twilio to network subscribers on affected networks in multiple countries across Africa and Asia are operating normally.
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