[Bulgaria][Vivacom] Unscheduled Disturbance

Update timeline

1. investigating Mar 07, 2026, 06:08 PM UTC

   Dear Customer / Partner, Please be aware that we are currently experiencing a delivery issue in Bulgaria with operator Vivacom. Start Date & Time: 2026-03-07 18:02 CET Affected Services: SMS MT, SMS MO, DLR Impact: Delayed MT messages / Delayed MO messages / Missing delivery receipts / Late delivery receipts Our engineers are investigating the issue and are in close contact with the operator. We apologize for the inconvenience and will provide further updates as soon as more information becomes available.

2. monitoring Mar 07, 2026, 06:38 PM UTC

   Dear Customer / Partner, The impact is no longer present, Vivacom in Bulgaria will remain under close observation for the next 2 hours. We plan to send you an update within the next 2 hours or when new information is available.

3. resolved Mar 07, 2026, 08:40 PM UTC

   Dear Customer / Partner, We would like to notify you that the disturbance is now closed. If you experience any further delays do not hesitate to contact your local support. Thank you for your patience and understanding.