SMS/MMS Delivery Report Delays & Message Delivery Delays to Verizon Wireless (US) for a Subset of Long Codes, Short Codes, and Toll-Free Numbers

Incident Report for Twilio

Resolved

We are no longer experiencing MMS/SMS delivery delays when sending messages to Verizon Wireless in the United States from a subset of long codes, short codes, and toll-free numbers. This incident has been resolved.

Posted Jan 14, 2026 - 22:05 PST

Monitoring

We are observing recovery in MMS/SMS delivery when sending messages to Verizon Wireless in the United States from a subset of long codes, short codes, and toll-free numbers. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Jan 14, 2026 - 20:20 PST

Update

We are continuing to experience delivery delays when sending SMS/MMS messages to Verizon Wireless in the United States from a subset of long codes, short codes, and toll-free numbers. Our engineers are working with our carrier partners to resolve the issue. We expect to provide another update in 16 hours or as soon as more information becomes available.

Posted Jan 14, 2026 - 18:36 PST

Update

We are continuing to experience delivery delays when sending SMS/MMS messages to Verizon Wireless in the United States from a subset of long codes, short codes, and toll-free numbers. Our engineers are working with our carrier partners to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.

Posted Jan 14, 2026 - 14:46 PST

Update

We are continuing to experience delivery delays when sending SMS/MMS messages to Verizon Wireless in the United States from a subset of long codes, short codes, and toll-free numbers. Our engineers are working with our carrier partners to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.

Posted Jan 14, 2026 - 12:47 PST

Update

We are continuing our investigation and have discovered Zipwhip Messaging is also affected.

Posted Jan 14, 2026 - 11:33 PST

Update

We continue to experience delivery delays when sending SMS/MMS messages to Verizon Wireless in the United States from a subset of long codes, short codes, and toll-free numbers. Our engineers are working with our carrier partners to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

Posted Jan 14, 2026 - 10:47 PST

Update

We are continuing our investigation and have discovered a subset of toll-free numbers are also affected.

Posted Jan 14, 2026 - 10:26 PST

Update

We are continuing our investigation and have discovered SMS is also affected.

Posted Jan 14, 2026 - 10:04 PST

Investigating

We are experiencing delays in receiving message delivery reports when sending to Verizon Wireless in the United States from a subset of long codes and short codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.

Posted Jan 14, 2026 - 09:45 PST

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).