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Twilio · Apps and SaaSOct 2, 2026, 06:56 UTC today

Silent Network Authentication (SNA) Failure Increase on AT&T in United States

MinorNot disclosedUpdated 3h ago
Oct 2, 06:56 UTCOct 2, 15:04 UTC
Duration
8h 9m
Impact
Minor
Root cause
Not disclosed
Twilio, 90 days
550 incidents
Affected
Verify Silent Network AuthCARRIER NETWORK - Verify Silent Network Auth
Status page

Final update

The incident has been resolved and API transactions for Silent Network Authentication (SNA) on AT&T in the United States are operating normally.

Timeline

  1. Resolved · Oct 2, 15:04 UTC
    The incident has been resolved and API transactions for Silent Network Authentication (SNA) on AT&T in the United States are operating normally.
  2. Monitoring · Oct 2, 12:40 UTC
    We have observed recovery in API transactions for Silent Network Authentication (SNA) on AT&T in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
  3. Monitoring · Oct 2, 10:40 UTC
    We have observed recovery in API transactions for Silent Network Authentication (SNA) on AT&T in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  4. Investigating · Oct 2, 10:02 UTC
    Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on AT&T in the United States. 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. Investigating · Oct 2, 08:01 UTC
    Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on AT&T in the United States. 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. Investigating · Oct 2, 06:56 UTC
    Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on AT&T in the United States. 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.

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