503 Errors When Calling Comms-API
Sep 17, 15:57 UTCSep 17, 15:57 UTC
Duration
0m
Impact
Informational
Root cause
Not disclosed
Twilio, 90 days
548 incidents
Affected
SMSPROGRAMMABLE MESSAGING - SMS
Final update
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.
Timeline
- Resolved · Sep 17, 15:57 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.
More from Twilio
Full historySMS Delivery Receipt Delays from Twilio to Bouygues Telecom Francestill openSMS Delivery Failures from Germany to a Subset of Twilio Long Codesstill openSMS Delivery Failures from Twilio to ETL Laosstill openSMS Delivery Failures from Twilio to MTN Nigerialasted 6h 1mSilent Network Authentication (SNA) Failure Increase and Gateway API (Lookup API) Failure Increase on EnStream in Canadalasted 14h 13mSMS Delivery Receipt Delays from Twilio to Globe Philippineslasted 13h 17m