Ciptex incident
Twilio - Elevated Call Failures over Twilio Interconnect in US1 region
Resolved after 7 hours 18 minutes, affecting Twilio SIP Interface and Twilio PSTN, on December 19, 2025.
The issue with elevated call failures has been resolved and calls over Twilio Interconnect in US1 region is operating normally at this time.
Affected components
Update timeline
- investigating Dec 19, 2025, 04:09 PM UTC
Twilio are investigating elevated call failures over Twilio Interconnect in US1 region. We expect to provide another update in 1 hour or as soon as more information becomes available
- investigating Dec 19, 2025, 04:58 PM UTC
We are continuing to investigate this issue.
- investigating Dec 19, 2025, 06:56 PM UTC
Twilio are still investigating elevated call failures over Twilio Interconnect in US1 region. We expect to provide another update in 2 hours or as soon as more information becomes available
- investigating Dec 19, 2025, 08:46 PM UTC
Twilio are still investigating elevated call failures over Twilio Interconnect in US1 region. We expect to provide another update in 4 hours or as soon as more information becomes available
- resolved Dec 19, 2025, 11:28 PM UTC
The issue with elevated call failures has been resolved and calls over Twilio Interconnect in US1 region is operating normally at this time.
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