Outage in Twilio

SMS Delivery Receipt Delays from Twilio to Telekom Srbija Serbia

Major

March 18, 2026 - Started about 3 hours ago
Official incident page

Incident Report

Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Telekom Srbija network subscribers in Serbia. Our team is actively investigating this 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.

Components affected

Twilio SMS, Europe

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Latest Updates ( sorted recent to last )

MONITORING about 1 hour ago - at 03/19/2026 12:58AM

We still observe a recovery in SMS delivery receipts from Twilio to Telekom Srbija network subscribers in Serbia and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

MONITORING about 3 hours ago - at 03/18/2026 11:21PM

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

IDENTIFIED about 3 hours ago - at 03/18/2026 11:20PM

Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Telekom Srbija network subscribers in Serbia. 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.

INVESTIGATING about 3 hours ago - at 03/18/2026 11:19PM

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