# Twilio: [Scheduled] US SMS Carrier Maintenance - AT&T US

> Twilio maintenance “[Scheduled] US SMS Carrier Maintenance - AT&T US” on 2021-12-16: impact maintenance (vendor’s label), 8.8 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/vp878ps36d5b
Last updated: 2021-12-16T14:00:00Z

- Impact (vendor’s label): maintenance (maintenance)
- Status: resolved
- Started: 2021-12-16 05:11 UTC · Resolved: 2021-12-16 14:00 UTC · Duration: 8.8 h
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/vp878ps36d5b](https://status.twilio.com/incidents/vp878ps36d5b)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2021-12-16 14:00 UTC: The scheduled maintenance has been completed.

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

## Cite this

Maintenance posted by Twilio, started 2021-12-16 05:11 UTC, resolved after 8.8 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/vp878ps36d5b
- Citation: Twilio, “[Scheduled] US SMS Carrier Maintenance - AT&T US” (2021-12-16 05:11 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/vp878ps36d5b (CC BY 4.0).
- Markdown link: `[Twilio: Scheduled US SMS Carrier Maintenance - AT&T US (2021-12-16)](https://rewindex.com/company/twilio/incidents/vp878ps36d5b)`


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Canonical: https://rewindex.com/company/twilio/incidents/vp878ps36d5b · Markdown: https://rewindex.com/company/twilio/incidents/vp878ps36d5b.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/vp878ps36d5b · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T17:17:07.229Z