SMS Delivery Receipt Delays from Twilio to Chunghwa Telecom Taiwan

Summary

SMS Delivery Receipt Delays from Twilio to Chunghwa Telecom Taiwan

The incident has been resolved and SMS delivery receipts from Twilio to Chunghwa Telecom network subscribers in Taiwan are operating normally.

• Started

  Sep 16, 2026 · 11:57 AM

• Resolved

  Sep 16, 2026 · 3:22 PM

• Duration

  3h 24m

• Severity

  Minor

• ◐

  Investigating

  Sep 16 · 11:57 AM Twilio

  Twilio customers may be experiencing SMS delivery delays from Twilio to Chunghwa Telecom network subscribers in Taiwan. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

• ◐

  Investigating

  Sep 16 · 12:10 PM Twilio

  Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Chunghwa Telecom network subscribers in Taiwan. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hours or as soon as more information becomes available.

• ◆

  Identified

  Sep 16 · 12:20 PM Twilio

  Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Chunghwa Telecom network subscribers in Taiwan. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.

• ◉

  Monitoring

  Sep 16 · 1:22 PM Twilio

  We have observed a recovery in SMS delivery receipts from Twilio to Chunghwa Telecom network subscribers in Taiwan and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

• ✓

  Resolved

  Sep 16 · 3:22 PM Twilio

  The incident has been resolved and SMS delivery receipts from Twilio to Chunghwa Telecom network subscribers in Taiwan are operating normally.