# Twilio: Intermittent Delivery of AT&T Mobile Originated SMS to Twilio Short Codes

> Twilio status incident “Intermittent Delivery of AT&T Mobile Originated SMS to Twilio Short Codes” on 2021-12-22: impact minor (vendor’s label), 7 d, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/8kmt3ry1rwts
Last updated: 2021-12-29T18:46:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2021-12-22 22:50 UTC · Resolved: 2021-12-29 18:46 UTC · Duration: 7 d
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/8kmt3ry1rwts](https://status.twilio.com/incidents/8kmt3ry1rwts)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2021-12-29 18:46 UTC: We are no longer experiencing intermittent delivery failures from AT&T mobile handsets to a subset of Twilio short codes. If this issue returns, we will reach out to affected customers individually.

_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 2021-12-22 22:50 UTC, resolved after 7 d, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/8kmt3ry1rwts
- Citation: Twilio, “Intermittent Delivery of AT&T Mobile Originated SMS to Twilio Short Codes” (2021-12-22 22:50 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/8kmt3ry1rwts (CC BY 4.0).
- Markdown link: `[Twilio: Intermittent Delivery of AT&T Mobile Originated SMS to Twilio Short Codes (2021-12-22)](https://rewindex.com/company/twilio/incidents/8kmt3ry1rwts)`


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Canonical: https://rewindex.com/company/twilio/incidents/8kmt3ry1rwts · Markdown: https://rewindex.com/company/twilio/incidents/8kmt3ry1rwts.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/8kmt3ry1rwts · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T14:25:45.818Z