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

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

Incident updateNormal progress (rule, 100%)Changed stspg.io (opens in new tab)
Summary

Summary pending. The diff below shows exactly what changed.

Incident page: the full timeline of updates

What changed

Struck in red is what Twilio removed; blue is what they added. Muted text is unchanged context.

ChangedStatus#1
Before: investigating
After: identified
AddedUpdateidentified#2
Before: not present
After: 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.

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History of this incident

Tuesday, October 20

3 incident changes

Cite this

Incident updated: Silent Network Authentication (SNA) Failure Increase on AT&T in United States on Twilio’s status page, changed 2026-10-20 05:43 UTC (change 1 of 3).

Title
Incident updated: Silent Network Authentication (SNA) Failure Increase on AT&T in United States
Vendor
Twilio
Date
URL
https://rewindex.com/change/r5f99a5f26ca2ad

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