# Twilio: AT&T RCS Messages are Failing With 403 HTML Error

> Twilio status incident “AT&T RCS Messages are Failing With 403 HTML Error” on 2025-12-11: impact minor (vendor’s label), 40 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/g2jvh5l3m8q9
Last updated: 2025-12-11T10:25:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2025-12-11 09:45 UTC · Resolved: 2025-12-11 10:25 UTC · Duration: 40 min
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/g2jvh5l3m8q9](https://status.twilio.com/incidents/g2jvh5l3m8q9)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2025-12-11 10:25 UTC: This incident has been mitigated, for further updates relating to this please see incident: "SMS and RCS Delivery Failures on AT&T Network".

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## 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).

- Canonical URL: https://rewindex.com/company/twilio/incidents/g2jvh5l3m8q9
- Citation: Twilio, “AT&T RCS Messages are Failing With 403 HTML Error” (2025-12-11 09:45 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/g2jvh5l3m8q9 (CC BY 4.0).
- Markdown link: `[Twilio: AT&T RCS Messages are Failing With 403 HTML Error (2025-12-11)](https://rewindex.com/company/twilio/incidents/g2jvh5l3m8q9)`


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Canonical: https://rewindex.com/company/twilio/incidents/g2jvh5l3m8q9 · Markdown: https://rewindex.com/company/twilio/incidents/g2jvh5l3m8q9.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/g2jvh5l3m8q9 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T16:43:08.426Z