Twilio: Intermittent 21604 Errors for Valid SMS Recipients
Timeline of updates
- resolved
Intermittent, 21604 errors for valid SMS recipients has been resolved and SMS is operating normally at this time.
From Twilio’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
Archive proof
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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 2024-02-12 23:31 UTC, resolved after 16 h, 1 update(s).
- Title
- Intermittent 21604 Errors for Valid SMS Recipients
- Vendor
- Twilio
- Date
- URL
- https://rewindex.com/company/twilio/incidents/4y912k05c5ws
Twilio profileRecent Twilio incidentsAll outages on February 12, 2024Twilio in February 2024MarkdownJSON