SMS and MMS Delivery Receipt Delays from Twilio to Verizon United States

Incident Report for Twilio

Resolved

The incident has been resolved and SMS/MMS delivery receipts from Twilio to Verizon network subscribers in the United States are operating normally.

Posted Apr 17, 2026 - 04:43 PDT

Monitoring

We have observed a recovery in SMS and MMS delivery receipts from Twilio 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.

Posted Apr 17, 2026 - 02:50 PDT

Update

We are continuing to work on a fix for this issue.

Posted Apr 17, 2026 - 02:25 PDT

Update

Twilio customers may be experiencing SMS and MMS delivery receipt delays from Twilio to Verizon network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Apr 17, 2026 - 02:22 PDT

Identified

Twilio customers may be experiencing MMS delivery receipt delays from Twilio to Verizon network subscribers in the United States. Our team has identified the cause, and is working to resolve the 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 Apr 17, 2026 - 01:14 PDT

Investigating

Twilio customers may be experiencing MMS delivery receipt delays from Twilio to 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 Apr 17, 2026 - 01:06 PDT

This incident affected: CARRIER NETWORK (SMS Long Code, North America, MMS Long Code, North America, SMS Short Code, North America, MMS Short Code, North America, SMS Toll-Free, North America, MMS Toll-Free, North America) and ZIPWHIP MESSAGING (SMS Long Code, North America, MMS Long Code, North America, SMS Toll-Free, North America, MMS Toll-Free, North America).