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

Incident

June 03, 5:04pm

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

Status: closed

Start: June 03, 4:41pm

End: June 03, 5:04pm

Duration: 22 minutes

Affected Components:

3rd Party Providers Twilio SMS Short Code, North America

Investigating

June 03, 4:41pm

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.

Resolved

June 03, 5:04pm

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.