Twilio incident

503 Errors When Calling Comms-API

Resolved on September 17, 2026, affecting SMS.

resolved Sep 17, 2026, 03:57 PM UTC

Starting on 2026-09-16 ~19:00 UTC customers were experiencing 503 errors while calling comms-api messages endpoints. 128 requests took 1 minute and eventually got failed by the timeout. After 19:30 there were no 503 errors observed anymore but the root cause of the issue is unclear.

Started
Sep 17, 2026, 03:57 PM UTC
Resolved
Sep 17, 2026, 03:57 PM UTC
Duration
–
Detected by Pingoru
Sep 17, 2026, 03:57 PM UTC

Affected components

SMS

Update timeline

  1. resolved Sep 17, 2026, 03:57 PM UTC

    Starting on 2026-09-16 ~19:00 UTC customers were experiencing 503 errors while calling comms-api messages endpoints. 128 requests took 1 minute and eventually got failed by the timeout. After 19:30 there were no 503 errors observed anymore but the root cause of the issue is unclear.

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