Twilio: SMS Delivery Failures and Delays to Cingular Wireless AT&T in the US Over a Subset of Longcodes
Timeline of updates
- resolved
Twilio SMS was degraded for 6 minutes between 12:25 and 12:31 Pacific Time on 04/09/2025. During this period of time customers may have experienced SMS delivery failures and delays to Cingular Wireless AT&T in the US Over a subset of longcodes. The issue has now been resolved.
From Twilio’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert.
How the archive is checked, and what it cannot prove.
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 2025-04-09 08:43 UTC, resolved after 0 min, 1 update(s).
- Title
- SMS Delivery Failures and Delays to Cingular Wireless AT&T in the US Over a Subset of Longcodes
- Vendor
- Twilio
- Date
- URL
- https://rewindex.com/company/twilio/incidents/b7h4nmzb3j58
Twilio profileRecent Twilio incidentsAll outages on April 9, 2025Twilio in April 2025MarkdownJSON