Twilio incident
SMS Delivery Receipt Delays from Twilio to Ufone Pakistan
Resolved after 6 hours 40 minutes, affecting SMS, APAC, on September 18, 2026.
The incident has been resolved and SMS delivery receipts from Twilio to Ufone network subscribers in Pakistan are operating normally.
Affected components
Update timeline
- investigating Sep 18, 2026, 09:23 AM UTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Ufone network subscribers in Pakistan. Our team is actively investigating this 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.
- identified Sep 18, 2026, 09:23 AM UTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Ufone network subscribers in Pakistan. 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.
- identified Sep 18, 2026, 10:27 AM UTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Ufone network subscribers in Pakistan. 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 2 hours or as soon as more information becomes available.
- identified Sep 18, 2026, 12:32 PM UTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Ufone network subscribers in Pakistan. 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 4 hours or as soon as more information becomes available.
- monitoring Sep 18, 2026, 02:00 PM UTC
We have observed a recovery in SMS delivery receipts from Twilio to Ufone network subscribers in Pakistan and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
- resolved Sep 18, 2026, 04:03 PM UTC
The incident has been resolved and SMS delivery receipts from Twilio to Ufone network subscribers in Pakistan are operating normally.
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