Twilio outage on October 29, 2026: Voice Call Failures from a Subset of Twilio Phone Numbers to T-Mobile United States
Twilio has reported an incident affecting Twilio since 01:34 UTC on 29 October 2026 (2 hours 28 minutes so far).
Open
Official incident reported by Twilio
- Started
- 01:34
- 29 Oct 2026 UTC
- Status
- Open
- not resolved yet
- Duration
- 2h 28m
- 2 hours 28 minutes so far
- Impact
- Minor
- as rated by Twilio
- Updates
- 4
- posted by Twilio
Timeline
All times UTC.
Official incident from Twilio
Voice Call Failures from a Subset of Twilio Phone Numbers to T-Mobile United States
-
Official
Investigating
Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
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Official
Identified
Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to T-Mobile network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
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Official
Monitoring
We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to T-Mobile network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
-
Official
Identified
Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to T-Mobile network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
"Official" rows are quoted from Twilio's public status page, status.twilio.com. Very long posts are shortened.
What our checkpoints saw
HostTracker's checkpoints, which test www.twilio.com from several locations, recorded no outage of 5 minutes or longer during this incident. A provider can report a problem that affects only some features, regions or accounts, which a check of the main address does not see. The live Twilio status shows what our checks see right now.
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Independent measurement by HostTracker. Not affiliated with Twilio. Official updates are quoted from Twilio's public status page and remain Twilio's own words.