Scheduled maintenance
Twilio Services
Issues related to Twilio’s Software
External Connectivity
Issues found outside of Twilio’s Network
System Metrics
Increased SMS Filtering to AT&T
Incident
Report for Twilio
Resolved
We have investigated the issue of increased carrier filtering on SMS traffic to AT&T US from a subset of local long code numbers. It was determined that we are observing expected filtering behavior for messaging sent without a registered A2P Campaign. All systems are operational. If you experience message filtering toward AT&T on a registered A2P 10DLC Campaign, please submit a ticket to Twilio Support.
Update
We continue to experience an issue of increased carrier filtering on SMS traffic to AT&T US from a subset of local long code numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 24 hours or as soon as more information becomes available.
Update
We continue to experience an issue of increased carrier filtering on SMS traffic to AT&T US from a subset of local long code numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 24 hours or as soon as more information becomes available.
Update
We continue to experience an issue of increased carrier filtering on SMS traffic to AT&T US from a subset of local long code numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 24 hours or as soon as more information becomes available.
Update
We continue to experience an issue of increased carrier filtering on SMS traffic to AT&T US from a subset of local long code numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
Update
We are still experiencing an issue of increased carrier filtering on SMS traffic to AT&T US from a subset of local long code numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
Update
We are still experiencing an issue of increased carrier filtering on SMS traffic to AT&T US from a subset of local long code numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
Update
We are still experiencing an issue of increased carrier filtering on SMS traffic to AT&T US from a subset of local long code numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
Update
We are experiencing an issue of increased carrier filtering on SMS traffic to AT&T US from a subset of local long code numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
Investigating
Our monitoring systems have detected a potential issue with SMS delivery to AT&T from local long codes. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.
This incident affected: CARRIER NETWORK (SMS Long Code, North America).