Outage in Twilio

SMS Delivery Delays to Airtel Network in Zambia

Resolved Minor

December 08, 2025 - Started 4 months ago - Lasted about 7 hours
Official incident page

Incident Report

We are experiencing SMS delivery delays when sending messages to Airtel Network in Zambia for a Subset of Longcodes. 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, Middle East & Africa

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Latest Updates ( sorted recent to last )

RESOLVED 4 months ago - at 12/09/2025 05:19AM

We are no longer experiencing SMS delivery delays when sending messages to the Airtel Network in Zambia for a subset of Long Codes. This incident has been resolved

MONITORING 4 months ago - at 12/09/2025 03:28AM

We are observing recovery in SMS delivery when sending messages to the Airtel Network in Zambia for a subset of long codes. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING 4 months ago - at 12/09/2025 12:53AM

We are still experiencing SMS delivery delays when sending messages to Airtel Network in Zambia for a Subset of Longcodes. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

INVESTIGATING 4 months ago - at 12/08/2025 10:53PM

We are still experiencing SMS delivery delays when sending messages to Airtel Network in Zambia for a Subset of Longcodes. 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 4 months ago - at 12/08/2025 09:53PM

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