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Twilio outage on October 21, 2026: SMS Delivery Delays from Twilio to T-Mobile Czech Republic

Twilio reported an incident affecting Twilio for 4 hours 16 minutes on 21 October 2026, from 01:10 to 05:26 UTC.

www.twilio.com All times UTC

Resolved

Official incident reported by Twilio

Started
01:10
21 Oct 2026 UTC
Resolved
05:26
21 Oct 2026 UTC
Duration
4h 16m
4 hours 16 minutes
Impact
Minor
as rated by Twilio
Updates
4
posted by Twilio

Timeline

All times UTC.

Official incident from Twilio

SMS Delivery Delays from Twilio to T-Mobile Czech Republic

Resolved Minor impact 21 Oct 2026 01:10 UTC View on Twilio's status page
  1. Official
    Investigating

    Twilio customers may be experiencing SMS delivery delays from Twilio to T-Mobile network subscribers 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.

  2. Official
    Identified

    Twilio customers may be experiencing SMS delivery delays from Twilio to T-Mobile network subscribers 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.

  3. Official
    Monitoring

    We have observed a recovery in SMS delivery from Twilio to T-Mobile network subscribers 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.

  4. Official
    Resolved

    The incident has been resolved and SMS delivery from Twilio to T-Mobile network subscribers 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.

Does your product depend on Twilio?

An outage like this one reaches your users through your product, and most teams hear about it from a customer rather than from a dashboard. HostTracker watches any endpoint you name - your own site, an API you call, a vendor you resell - from 300+ locations, confirms a failure from several of them before it says anything, and then tells you by email, SMS, voice call or your chat tool.

You get the same record you are reading here for your own services: every outage timestamped, with the checks that observed it.

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