SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to T-Mobile and Verizon United States

Incident Report for Twilio

Resolved

We have fully investigated the SMS delivery receipt delays from a subset of Twilio Short Codes to T-Mobile and Verizon network subscribers in the United States, and it was determined that the impact was limited to a small set of customers, who have been contacted individually to address any concerns. All systems are operational.

Posted Jun 03, 2026 - 14:04 PDT

Investigating

Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Short Codes to T-Mobile and Verizon network subscribers in the United States. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Jun 03, 2026 - 13:41 PDT

This incident affected: CARRIER NETWORK (SMS Short Code, North America).