Twilio incident
SMS Delivery Delays from Twilio Phone Numbers to MTN Zambia
Twilio experienced a minor incident on May 28, 2026 affecting SMS, Middle East & Africa, lasting 3h 26m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 28, 2026, 05:39 PM UTC
Twilio customers may be experiencing SMS delivery delays 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.
- identified May 28, 2026, 06:01 PM UTC
Twilio customers may be experiencing SMS delivery delays from Twilio 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.
- monitoring May 28, 2026, 07:01 PM UTC
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.
- resolved May 28, 2026, 09:05 PM UTC
The incident has been resolved and SMS delivery from Twilio Phone Numbers to MTN network subscribers in Zambia is operating normally.