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Outage in Zipwhip

SMS Delivery Delays from a Subset of Twilio Phone Numbers to Multiple Networks in Kazakhstan, Russia, Belarus

Resolved Minor
March 21, 2026 - Started 15 days ago - Lasted about 17 hours
Official incident page

Incident Report

We are experiencing SMS delivery delays when sending messages from a Subset of Twilio Phone Numbers to Multiple Networks in Kazakhstan, Russia, Belarus. 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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Latest Updates ( sorted recent to last )
RESOLVED 14 days ago - at 03/21/2026 07:09PM

The incident has been resolved and SMS delivery from a subset of Twilio Phone Numbers to affected networks in affected countries is operating normally.

INVESTIGATING 15 days ago - at 03/21/2026 12:45PM

The incident has been resolved and SMS delivery from a subset of Twilio Phone Numbers to affected networks in affected countries is operating normally.

INVESTIGATING 15 days ago - at 03/21/2026 12:01PM

We have observed a recovery in SMS delivery from a subset of Twilio Phone Numbers to network subscribers on multiple networks in multiple countries and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING 15 days ago - at 03/21/2026 09:41AM

We continue to experience SMS delivery delays when sending messages from a Subset of Twilio Phone Numbers to Multiple Networks in Kazakhstan, Russia, Belarus. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.

INVESTIGATING 15 days ago - at 03/21/2026 05:31AM

We are experiencing SMS delivery delays when sending messages from a Subset of Twilio Phone Numbers to Multiple Networks in Kazakhstan, Russia, Belarus. 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 15 days ago - at 03/21/2026 03:32AM

We are experiencing SMS delivery delays when sending messages from a Subset of Twilio Phone Numbers to Multiple Networks in Kazakhstan, Russia, Belarus. 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 15 days ago - at 03/21/2026 02:41AM

We are experiencing SMS delivery delays when sending messages from a Subset of Twilio Phone Numbers to Multiple Networks in Kazakhstan, Russia, Belarus. 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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