The incident has been resolved and SMS delivery from a subset of Twilio Short Codes to Cellularone NE Arizona network subscribers in the United States is operating normally.
Posted Oct 22, 2026 - 03:57 PDT
Update
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Cellularone network subscribers in the United States and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
Posted Oct 21, 2026 - 19:25 PDT
Update
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Cellularone network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
Posted Oct 21, 2026 - 15:20 PDT
Monitoring
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Cellularone 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.
Posted Oct 21, 2026 - 13:19 PDT
Update
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Cellularone network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
Posted Oct 21, 2026 - 11:11 PDT
Investigating
Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Cellularone 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.
Posted Oct 21, 2026 - 10:10 PDT
This incident affected: CARRIER NETWORK (SMS Short Code, North America).