Inconsistent Filtering May Have Caused Failed Deliveries for Inbound Messages
Oct 16, 21:00 UTCOct 16, 21:00 UTC
Duration
0m
Impact
Informational
Root cause
Not disclosed
Twilio, 90 days
545 incidents
Affected
Not listed by the vendor.
Final update
Between October 16, 2025, at 21:15 UTC and October 17, 2025, at 19:45 UTC, some inbound SMS messages to Twilio accounts may have failed to be delivered, resulting in error code 30038. This issue was caused by an unexpected behavior following a filtering change. The change has since been reverted, and inbound SMS traffic is now processing as expected.
Timeline
- Resolved · Oct 16, 21:00 UTC
Between October 16, 2025, at 21:15 UTC and October 17, 2025, at 19:45 UTC, some inbound SMS messages to Twilio accounts may have failed to be delivered, resulting in error code 30038. This issue was caused by an unexpected behavior following a filtering change. The change has since been reverted, and inbound SMS traffic is now processing as expected.
More from Twilio
Full history| Started | Incident | Impact | Duration |
|---|---|---|---|
| Sep 2319:34 UTC | Voice Call Failures from a Subset of Twilio Mobile Numbers to United Kingdom | minor | Ongoing |
| Sep 2317:57 UTC | SMS Delivery Failures from Twilio Alphanumeric Sender IDs to MTN Nigeria | minor | 5h 54m |
| Sep 2315:02 UTC | Voice Call Failures from a Subset of Twilio Phone Numbers to Norway | minor | Ongoing |
| Sep 2312:53 UTC | SMS Delivery Delays from Twilio to MASS Response Austria | minor | 4h 20m |
| Sep 2310:58 UTC | SMS Delivery Failures from Twilio to Multiple Countries | minor | 9h 12m |
| Sep 2306:32 UTC | SMS Delivery Delays from Twilio Phone Numbers to Tele2 Sweden | minor | 5h 53m |
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