Outage in Twilio

SMS Delivery Delays to MobiFone in Viet Nam via a Subset of Longcodes & Alphanumeric Numbers

Minor
November 28, 2025 - Started about 3 hours ago
Official incident page

Incident Report

We are experiencing SMS delivery delays when sending messages to MobiFone in Viet Nam via a subset of longcodes & alphanumeric numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
Components affected
Twilio SMS, APAC

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Latest Updates ( sorted recent to last )
INVESTIGATING about 2 hours ago - at 11/28/2025 09:43AM

We continue experiencing SMS delivery delays when sending messages to MobiFone in Viet Nam via a subset of longcodes & alphanumeric numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING about 3 hours ago - at 11/28/2025 08:58AM

We are experiencing SMS delivery delays when sending messages to MobiFone in Viet Nam via a subset of longcodes & alphanumeric numbers. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

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