Twilio: AT&T RCS Messages are Failing With 403 HTML Error
Timeline of updates
- resolved
This incident has been mitigated, for further updates relating to this please see incident: "SMS and RCS Delivery Failures on AT&T Network".
From Twilio’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
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This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
Impact, status and times are the vendor’s own, as last archived. View on status.twilio.com (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by Twilio, started 2025-12-11 09:45 UTC, resolved after 40 min, 1 update(s).
- Title
- AT&T RCS Messages are Failing With 403 HTML Error
- Vendor
- Twilio
- Date
- URL
- https://rewindex.com/company/twilio/incidents/g2jvh5l3m8q9
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