Twilio outage on October 16, 2026: SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Multiple Networks in Czech Republic

Twilio reported an incident affecting Twilio for 20 hours 28 minutes on 16 October 2026, from 17:16 to 13:45 UTC.

www.twilio.com All times UTC

Resolved

Official incident reported by Twilio

Started: 17:16; 16 Oct 2026 UTC
Resolved: 13:45; 17 Oct 2026 UTC
Duration: 20h 28m; 20 hours 28 minutes
Impact: Minor; as rated by Twilio
Updates: 9; posted by Twilio

Timeline

All times UTC.

Official incident from Twilio

SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to Multiple Networks in Czech Republic

Resolved Minor impact 16 Oct 2026 17:16 UTC View on Twilio's status page

16 Oct 17:16 Official
Investigating
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes and Alphanumeric Sender IDs to network subscribers on multiple networks in the Czech Republic. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
16 Oct 18:06 Official
Identified
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Long Codes to network subscribers on multiple networks in the Czech Republic. 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.
16 Oct 19:11 Official
Identified
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Alphanumeric Sender IDs and Long Codes to network subscribers on multiple networks in the Czech Republic. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
16 Oct 21:41 Official
Identified
Twilio customers may be experiencing SMS delivery delays and delivery failures from a subset of Twilio Alphanumeric Sender IDs and Long Codes to multiple networks in the Czech Republic. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
17 Oct 01:52 Official
Identified
Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio alphanumeric sender IDs and long codes to network subscribers on multiple networks in the Czech Republic. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
17 Oct 06:49 Official
Monitoring
We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric and Long Codes to network subscribers on multiple networks in the Czech Republic and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
17 Oct 08:56 Official
Monitoring
We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender IDs and Long Codes to network subscribers on multiple networks in the Czech Republic and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
17 Oct 13:00 Official
Monitoring
We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender IDs and Long Codes to network subscribers on multiple networks in the Czech Republic and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
17 Oct 13:45 Official
Resolved
The incident has been resolved and SMS delivery from a subset of Twilio Alphanumeric Sender IDs and Long Codes to affected networks in the Czech Republic is operating normally.

"Official" rows are quoted from Twilio's public status page, status.twilio.com. Very long posts are shortened.

What our checkpoints saw

HostTracker's checkpoints, which test www.twilio.com from several locations, recorded no outage of 5 minutes or longer during this incident. A provider can report a problem that affects only some features, regions or accounts, which a check of the main address does not see. The live Twilio status shows what our checks see right now.

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Independent measurement by HostTracker. Not affiliated with Twilio. Official updates are quoted from Twilio's public status page and remain Twilio's own words.