Outage in SendGrid
Voice Call Failures from a Subset of Twilio Mobile Numbers to Vodafone United Kingdom
Resolved MinorIncident Report
Summary AI Generated
Voice calls from a subset of Twilio Mobile Numbers to Vodafone UK subscribers failed for approximately 17 hours on September 28, 2026. The issue affected Twilio customers attempting to reach Vodafone network subscribers in the United Kingdom. Recovery was observed and monitored before the incident was fully resolved later that evening.
Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to Vodafone network subscribers in the United Kingdom. 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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Latest Updates ( sorted recent to last )
RESOLVED
about 16 hours ago - at 09/29/2026 03:38AM
The incident has been resolved and voice calls from a subset of Twilio Mobile Numbers to Vodafone network subscribers in the United Kingdom are operating normally.
MONITORING
about 20 hours ago - at 09/28/2026 11:36PM
We have observed a recovery in voice calls from a subset of Twilio Mobile Numbers to Vodafone network subscribers in the United Kingdom and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
MONITORING
about 22 hours ago - at 09/28/2026 09:30PM
We have observed a recovery in voice calls from a subset of Twilio Mobile Numbers to Vodafone network subscribers in the United Kingdom and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
INVESTIGATING
1 day ago - at 09/28/2026 05:56PM
Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to Vodafone network subscribers in the United Kingdom. Our team is actively investigating this issue. We will provide another update in 8 hours or as soon as more information becomes available.
INVESTIGATING
1 day ago - at 09/28/2026 01:50PM
Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Vodafone network subscribers in the United Kingdom. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
INVESTIGATING
1 day ago - at 09/28/2026 11:48AM
Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Vodafone network subscribers in the United Kingdom. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
INVESTIGATING
1 day ago - at 09/28/2026 10:45AM
Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to Vodafone network subscribers in the United Kingdom. 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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