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

MinorStatus: resolvededitedStarted Resolved (3.3 h)5 updatesstspg.io (opens in new tab)

Affected components: CARRIER NETWORK - Verify Silent Network AuthVerify Silent Network Auth

Timeline of updates

  1. investigating

    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.

  2. identified

    Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) on AT&T in the United States. 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. monitoring

    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. monitoring

    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.

  5. resolved

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

Changes Rewindex caught on this incident

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Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).

Cite this

Status incident (vendor impact label: minor) posted by Twilio, started 2026-10-20 05:28 UTC, resolved after 3.3 h, 5 update(s); edited after publishing.

Title
Silent Network Authentication (SNA) Failure Increase on AT&T in United States
Vendor
Twilio
Date
URL
https://rewindex.com/company/twilio/incidents/sf1wgpv8z8hr

Twilio profileRecent Twilio incidentsAll outages on October 20, 2026Twilio in October 2026MarkdownJSON