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minor✓ Resolved

SMS Delivery Receipt Delays From a Subset of Twilio Long Codes to Zong Pakistan

Twilio•Thu, Jul 2, 2026, 06:53 PM
Status
resolved
Duration
8h 2m
Updates
5
Coverage
0 articles

INCIDENT TIMELINE

✓ ResolvedFri, Jul 3, 2026, 02:55 AM
This incident has been resolved.
monitoringFri, Jul 3, 2026, 12:06 AM
We have observed a recovery in SMS delivery receipts from a subset of Twilio Long Codes to Zong network subscribers in Pakistan and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
monitoringThu, Jul 2, 2026, 10:05 PM
We have observed a recovery in SMS delivery receipts from a subset of Twilio Long Codes to Zong 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.
identifiedThu, Jul 2, 2026, 07:59 PM
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to Zong 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.
identifiedThu, Jul 2, 2026, 06:53 PM
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to Zong 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.
investigatingThu, Jul 2, 2026, 06:53 PM
Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to Zong 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.

📊 TECHNICAL DETAILS

Internal ID
26803bff-0e56-4c05-943c-1c4b36403bc7
External ID
t78w3x5xk4fy
🕐 Started
Thu, Jul 2, 2026, 06:53 PM
🔄 Last Updated
Fri, Jul 3, 2026, 02:55 AM
✓ Resolved
Fri, Jul 3, 2026, 02:55 AM
MINOR
Impact Level
8h 2m
Total Duration
5
Status Updates
Affected Components
SMS, APAC
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