Outage in Zipwhip
SMS Delivery Delays From Twilio Toll-Free Numbers to US Carriers
Resolved MinorIncident Report
Due to sustained high traffic on the US carrier networks, we are currently experiencing SMS delivery issues from Twilio Toll-Free. Messages are queued due to capacity shortage, and customers may see delays when sending to certain US carriers.
Please find the current delivery status for the major carriers below:
AT&T (status - Operational)
T-Mobile (status - Operational)
Verizon (status - Delayed)
US Cellular (status - Operational)
We are actively working with our carrier partners to resolve the issue, and we will provide another update in 2 hours or as soon as we have any new information to share.
Need to monitor Zipwhip outages?
- Monitor all your external dependencies in one place
- Get instant alerts when outages are detected
- Be the first to know if service is down
- Show real-time status on private or public status page
- Keep your team informed
Latest Updates ( sorted recent to last )
RESOLVED
4 months ago - at 12/02/2025 06:34AM
We are no longer experiencing delivery report delays in SMS delivery issues from Twilio Toll-Free. This incident has been resolved.
MONITORING
4 months ago - at 12/02/2025 04:36AM
We are observing recovery in delivery report delays in SMS delivery issues from Twilio Toll-Free. 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.
INVESTIGATING
4 months ago - at 12/02/2025 03:45AM
Due to sustained high traffic on the US carrier networks, we are currently experiencing SMS delivery issues from Twilio Toll-Free. Messages are queued due to capacity shortage, and customers may see delays when sending to certain US carriers.
Please find the current delivery status for the major carriers below:
AT&T (status - Operational)
T-Mobile (status - Operational)
Verizon (status - DLR Delayed)
US Cellular (status - Operational)
We are actively working with our carrier partners to resolve the issue, and we will provide another update in 2 hours or as soon as we have any new information to share.
INVESTIGATING
4 months ago - at 12/02/2025 02:00AM
Due to sustained high traffic on the US carrier networks, we are currently experiencing SMS delivery issues from Twilio Toll-Free. Messages are queued due to capacity shortage, and customers may see delays when sending to certain US carriers.
Please find the current delivery status for the major carriers below:
AT&T (status - Operational)
T-Mobile (status - Operational)
Verizon (status - DLR Delayed)
US Cellular (status - Operational)
We are actively working with our carrier partners to resolve the issue, and we will provide another update in 2 hours or as soon as we have any new information to share.
INVESTIGATING
4 months ago - at 12/01/2025 10:48PM
Our monitoring shows overall improvement in carrier-side traffic congestion, and we are observing instant SMS delivery from Twilio Toll-free at this time. We will continue monitoring the overall US carrier networks to ensure a full recovery. We will provide another update in 4 hours or as soon as more information becomes available.
INVESTIGATING
4 months ago - at 12/01/2025 08:48PM
Due to sustained high traffic on the US carrier networks, we are currently experiencing SMS delivery issues from Twilio Toll-Free. Messages are queued due to capacity shortage, and customers may see delays when sending to certain US carriers.
Please find the current delivery status for the major carriers below:
AT&T (status - Operational)
T-Mobile (status - Operational)
Verizon (status - DLR Delayed)
US Cellular (status - Operational)
We are actively working with our carrier partners to resolve the issue, and we will provide another update in 2 hours or as soon as we have any new information to share.
INVESTIGATING
4 months ago - at 12/01/2025 07:45PM
Due to sustained high traffic on the US carrier networks, we are currently experiencing SMS delivery issues from Twilio Toll-Free. Messages are queued due to capacity shortage, and customers may see delays when sending to certain US carriers.
Please find the current delivery status for the major carriers below:
AT&T (status - Operational)
T-Mobile (status - Operational)
Verizon (status - Delayed)
US Cellular (status - Operational)
We are actively working with our carrier partners to resolve the issue, and we will provide another update in 2 hours or as soon as we have any new information to share.
INVESTIGATING
4 months ago - at 12/01/2025 05:53PM
Due to sustained high traffic on the US carrier networks, we are currently experiencing SMS delivery issues from Twilio Toll-Free. Messages are queued due to capacity shortage, and customers may see delays when sending to certain US carriers.
Please find the current delivery status for the major carriers below:
AT&T (status - DLR Delayed)
T-Mobile (status - Operational)
Verizon (status - Delayed)
US Cellular (status - Operational)
We are actively working with our carrier partners to resolve the issue, and we will provide another update in 2 hours or as soon as we have any new information to share.
INVESTIGATING
4 months ago - at 12/01/2025 04:48PM
Due to sustained high traffic on the US carrier networks, we are currently experiencing SMS delivery issues from Twilio Toll-Free. Messages are queued due to capacity shortage, and customers may see delays when sending to certain US carriers.
Please find the current delivery status for the major carriers below:
AT&T (status - Operational)
T-Mobile (status - Operational)
Verizon (status - Delayed)
US Cellular (status - Operational)
We are actively working with our carrier partners to resolve the issue, and we will provide another update in 2 hours or as soon as we have any new information to share.
Latest Zipwhip outages
SMS Delivery Delays and Failures from Twilio to Claro Brazil - about 8 hours ago
Intelligent Alerts unavailable - about 8 hours ago
SMS Delivery Delays and Failures to Orange Network in Egypt - about 9 hours ago
Never miss outages in third-party dependencies
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6020 services available
Integrations with
