SMS Delivery Delays from a Subset of Twilio Short Codes and Toll-Free Numbers to Verizon United States

Incident
August 13, 3:44am

SMS Delivery Delays from a Subset of Twilio Short Codes and Toll-Free Numbers to Verizon United States

Status: closed
Start: August 13, 12:32am
End: August 13, 3:44am
Duration: 3 hours 11 minutes
Affected Components:
3rd Party Providers Twilio SMS Short Code, North America SMS Toll-Free, North America
Investigating

August 13, 12:32am

August 13, 12:32am

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Toll-Free Numbers to Verizon 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.

Identified

August 13, 12:41am

August 13, 12:41am

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Toll-Free Numbers to Verizon network subscribers in the United States. 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.

Monitoring

August 13, 1:43am

August 13, 1:43am

We have observed a recovery in SMS delivery from a subset of Twilio Short Codes and Toll-Free Numbers to Verizon 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.

Resolved

August 13, 3:44am

August 13, 3:44am

The incident has been resolved and SMS delivery from a subset of Twilio Short Codes and Toll-Free Numbers to Verizon network subscribers in the United States is operating normally.