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Outage in Sinch

Services | Operator Services | Potential delay in delivery of MO, MT and DLR | TT#MNOC-65291 (MNOC-65292)

Resolved Minor
September 17, 2026 - Started 2 days ago - Lasted 1 day
Official incident page

Incident Report

Summary AI Generated

Sinch experienced a network issue beginning September 17 at 06:45 UTC that caused queue buildup across their SMSx/MM4 infrastructure, resulting in potential delivery delays for inbound (MO), outbound (MT), and delivery receipt (DLR) traffic on SMS 365 Operator US and MM4 (MMS 365) components. A fix was implemented approximately six hours after the incident started, with queues depleting and delays mitigating shortly after. The incident was monitored for stability and fully resolved on September 18 at 15:54 UTC, lasting approximately 28 hours in total.

Ticket Number: MNOC-65291 Services: SMSx, MM4 Description: Currently, we are observing queues related to MO, MT and DLR traffic within our SMSx/MM4 Few customers may observe a potential delay in delivery for MO, MT and DLR traffic. Our technical teams are actively working to identify the root cause and implement a resolution as quickly as possible. We will continue to provide updates as more information becomes available. We appreciate your patience and understanding. Impact: Mobile Terminating (MT) Traffic: Potential delay in delivery Mobile Originated (MO) Traffic: Potential delay in delivery DR Notification: Potential delay in delivery Report Manager Access: (remove if not applicable) Report Manager Statistics : (remove if not applicable) Incident Start Date & Time (GMT) : September 17, 06:45 UTC If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

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Latest Updates ( sorted recent to last )
RESOLVED about 16 hours ago - at 09/18/2026 03:54PM

Issue has remained stable. Resolving incident.

MONITORING 2 days ago - at 09/17/2026 01:24PM

A fix has been implemented. Queues are depleting and delays should be mitigated. Technical teams are monitoring for service stability.

IDENTIFIED 2 days ago - at 09/17/2026 01:00PM

A network issue was identified which could result in certain customers observing a potential delay in delivery. Technical resources are engaged and actively working on repair of the issue. Updates will continue to be provided.

IDENTIFIED 2 days ago - at 09/17/2026 11:46AM

Ticket Number: MNOC-65291
Services: SMSx, MM4

Description:
Currently, we are observing queues related to MO, MT and DLR traffic within our SMSx/MM4
Few customers may observe a potential delay in delivery for MO, MT and DLR traffic.

Our technical teams are actively working to identify the root cause and implement a resolution as quickly as possible. We will continue to provide updates as more information becomes available. We appreciate your patience and understanding.


Impact:
Mobile Terminating (MT) Traffic: Potential delay in delivery
Mobile Originated (MO) Traffic: Potential delay in delivery
DR Notification: Potential delay in delivery
Report Manager Access: (remove if not applicable)
Report Manager Statistics : (remove if not applicable)

Incident Start Date & Time (GMT) : September 17, 06:45 UTC

If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

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