minor✓ Resolved

SMS Delivery Failures from Twilio Phone Numbers to MTN Zambia

SendGrid•Tue, Aug 25, 2026, 06:07 PM

Status

resolved

Duration

11h 58m

Updates

Coverage

0 articles

INCIDENT TIMELINE

✓ ResolvedWed, Aug 26, 2026, 06:05 AM

This incident has been resolved.

monitoringWed, Aug 26, 2026, 05:56 AM

We have observed a recovery in SMS delivery from Twilio Phone Numbers to MTN network subscribers in Zambia and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.

monitoringWed, Aug 26, 2026, 03:48 AM

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

identifiedWed, Aug 26, 2026, 01:25 AM

Twilio customers may be experiencing SMS delivery failures from Twilio Phone Numbers to MTN network subscribers in Zambia. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.

identifiedTue, Aug 25, 2026, 09:17 PM

Twilio customers may be experiencing SMS delivery failures from Twilio Phone Numbers to MTN network subscribers in Zambia. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

identifiedTue, Aug 25, 2026, 07:15 PM

Twilio customers may be experiencing SMS delivery failures from Twilio Phone Numbers to MTN network subscribers in Zambia. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

identifiedTue, Aug 25, 2026, 06:10 PM

Twilio customers may be experiencing SMS delivery failures from Twilio Phone Numbers to MTN network subscribers in Zambia. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

investigatingTue, Aug 25, 2026, 06:07 PM

Twilio customers may be experiencing SMS delivery failures from Twilio Phone Numbers to MTN network subscribers in Zambia. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

📊 TECHNICAL DETAILS

Internal ID

a3bcb47d-d174-40dc-98d1-449f0840d815

External ID

sr8vrdmy823f

🕐 Started

Tue, Aug 25, 2026, 06:07 PM

🔄 Last Updated

Wed, Aug 26, 2026, 06:05 AM

✓ Resolved

Wed, Aug 26, 2026, 06:05 AM

MINOR

Impact Level

11h 58m

Total Duration

Status Updates

Affected Components

SMS, Middle East & Africa

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