The incident has been resolved and SMS delivery receipts from Twilio to MTN network subscribers in Nigeria are operating normally.

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

Twilio customers may be experiencing SMS delivery receipt delays from Twilio to MTN network subscribers in Nigeria. 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.