SMS Delivery Delays from Twilio Phone Numbers to MTN Zambia

Incident Report for Twilio

Resolved

The incident has been resolved and SMS delivery from Twilio Phone Numbers to MTN network subscribers in Zambia is operating normally.

Posted May 28, 2026 - 14:05 PDT

Monitoring

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.

Posted May 28, 2026 - 12:01 PDT

Identified

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.

Posted May 28, 2026 - 11:01 PDT

Investigating

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.

Posted May 28, 2026 - 10:39 PDT

This incident affected: CARRIER NETWORK (SMS, Middle East & Africa).