Twilio: SMS Delivery Failures to AT&T over a Subset of Long Code
Timeline of updates
- resolved
Between 10:40am and 12:57pm Pacific Time on 06/09/2021, Twilio observed elevated SMS delivery failures from a subset of Twilio long codes to US AT&T network. Our engineering team worked with our carrier partner to resolve the issue.
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: none) posted by Twilio, started 2021-06-09 21:05 UTC, resolved after 0 min, 1 update(s).
- Title
- SMS Delivery Failures to AT&T over a Subset of Long Code
- Vendor
- Twilio
- Date
- URL
- https://rewindex.com/company/twilio/incidents/z3rnpzc4jpsl
Twilio profileRecent Twilio incidentsAll outages on June 9, 2021Twilio in June 2021MarkdownJSON