SMS Delivery Delays from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Sunrise and Salt Switzerland

Incident Report for Twilio

Resolved

The incident has been resolved and SMS delivery from a subset of Twilio Alphanumeric Sender IDs and Long Codes to Sunrise and Salt network subscribers in Switzerland is operating normally.

Posted Jul 10, 2026 - 16:14 PDT

Monitoring

We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric and Long Codes to Sunrise and Salt network subscribers in Switzerland and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Jul 10, 2026 - 14:55 PDT

Update

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric Sender IDs and Long Codes to Sunrise and Salt network subscribers in Switzerland. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Jul 10, 2026 - 12:54 PDT

Identified

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric and Long Codes to Sunrise and Salt network subscribers in Switzerland. 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.

Posted Jul 10, 2026 - 11:52 PDT

Investigating

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric Sender IDs and Long Codes to Sunrise and Salt network subscribers in Switzerland. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Jul 10, 2026 - 11:47 PDT

This incident affected: CARRIER NETWORK (SMS, Europe).