Twilio incident

SMS Delivery Delays from Twilio Phone Numbers to MTN Zambia

Minor Resolved View vendor source →

Twilio experienced a minor incident on July 28, 2026 affecting SMS, Middle East & Africa, lasting 17h 17m. The incident has been resolved; the full update timeline is below.

Started
Jul 28, 2026, 08:19 PM UTC
Resolved
Jul 29, 2026, 01:37 PM UTC
Duration
17h 17m
Detected by Pingoru
Jul 28, 2026, 08:19 PM UTC

Affected components

SMS, Middle East & Africa

Update timeline

  1. investigating Jul 28, 2026, 08:19 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.

  2. identified Jul 28, 2026, 08:29 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.

  3. identified Jul 28, 2026, 09:29 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 2 hours or as soon as more information becomes available.

  4. monitoring Jul 28, 2026, 09:58 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.

  5. monitoring Jul 28, 2026, 11:58 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 4 hours or as soon as more information becomes available.

  6. monitoring Jul 29, 2026, 04:04 AM 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 8 hours or as soon as more information becomes available.

  7. monitoring Jul 29, 2026, 12:05 PM UTC

    We have observed a recovery in SMS delivery from Twilio to MTN network subscribers in Zambia and are monitoring service stability. We will provide another update in 16 hours or as soon as more information becomes available.

  8. resolved Jul 29, 2026, 01:37 PM UTC

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