Simbase Outage History

Widespread service degradation on mobile network in United States affecting device connectivity and network attach across multiple SIM profiles Affected countries: US

[2026-07-28 01:22:48] - Incident status was updated. Summary: Network provider in the United States is experiencing widespread service degradation. Devices across all IMSIs may experience difficulty connecting or may display limited or no service. The provider is actively working to resolve the issue and the situation is being monitored closely.

Incident Update – Investigating We are currently investigating an issue causing a degradation to data services that is affecting new network interactions. Impact: Some devices may experience issues establishing new data connections. Existing active sessions remain unaffected. Our engineering teams are actively working to restore normal service as quickly as possible. We will continue to provide updates as more information becomes available. Affected SIM profiles: Black , Green

We are continuing to investigate this issue.

We are continuing to investigate this issue.

[2026-07-24 09:04:40] - Incident status was updated. Summary: Data service degradation affecting new network interactions. Devices may experience issues with new connections while existing sessions remain unaffected. Teams are working to restore service.

Investigating reports of mobile-originated SMS messages with no content. Affected countries: XX

[2026-07-21 09:43:00] - Incident status was updated. Summary: Investigation underway for reports of mobile-originated SMS messages being delivered without content. Further updates to follow.

[2026-07-21 10:06:40] - Incident status was updated. Summary: Engineers are continuing to investigate the incident. No estimated time to resolution is currently available.

[2026-07-21 11:31:46] - Incident status was updated. Summary: Engineers are continuing to work on a fix with no estimated time to resolution currently available.

[2026-07-21 12:36:08] - Incident status was updated. Summary: A fix has been implemented and is currently being monitored. Initial results appear positive, with ongoing testing and monitoring in progress.

Connectivity issues detected on mobile network infrastructure in Germany. Devices may experience service disruptions or need to reconnect to alternative networks. Affected countries: DE

[2026-06-23 12:49:18] - Incident status was updated. Summary: Connectivity issue affecting devices on a mobile network in Germany is under investigation. The affected network has been blocked to allow devices to switch to alternative networks, which are operating normally. Further updates to follow as more information becomes available.

Service degradation detected in UK mobile network affecting device connectivity and data sessions. Affected countries: GB

[2026-06-18 12:55:25] - Incident status was updated. Summary: Service degradation is being investigated in the UK network. Devices attempting to connect may experience connectivity issues. Further updates to follow.

We are currently investigating an issue impacting SMS delivery to Black,Red and Green profile SIMs. SMS messages sent via the dashboard and API may not be consistently delivered at this time. Our engineering team is actively working to identify the cause and restore normal service as quickly as possible. We will provide updates as soon as more information becomes available.

Data service degradation affecting Green SIM profile. Devices may have difficulty establishing new data sessions. Existing sessions remain unaffected. Affected countries: XX

[2026-06-11 10:06:45] - Incident status was updated. Summary: Investigating degradation in data service performance. Devices may have difficulty establishing new data sessions. Existing sessions remain unaffected. Actively monitoring the situation.

Devices are experiencing failures when establishing data sessions on 4G networks using the Blue SIM profile. The issue is affecting a limited number of devices and is being investigated with the network operator. Affected countries: XX

[2026-06-10 09:10:19] - Incident status was updated. Summary: Investigating data session establishment failures on 4G network affecting a limited number of devices. Issue appears related to a previous fix and work is ongoing to identify and resolve the problem.

We are currently experiencing issues with the O2 network in the UK. As a precautionary measure, we have temporarily restricted access to O2 while we work with our roaming partner to investigate the root cause. Affected devices may show as connected to O2 but will not have active data. We recommend ensuring your device is configured to automatically select a network, as alternative supported networks : EE, Three, and Vodafone remain fully operational. We will provide further updates as our investigation progresses. We apologise for any inconvenience caused. Please note: this issue affects Black Profile SIMs used in the UK only.

[2026-06-04 13:48:25] - Incident status was updated. Summary: Investigating connectivity issue affecting devices in Guinea network. Customers may experience intermittent connectivity and service degradation. Team is actively working to identify root cause and restore normal service.

We have identified an increase in provisioning errors affecting Blue and Yellow Profile SIMs. As a result, some SIMs may fail to Enable and remain stuck in the “Enabling” state. As a precaution, we recommend that customers avoid disabling Blue/Yellow Profile SIMs until further notice. SIMs that are already enabled and in session are not affected.

Our systems have identified a potential issue for Blue and Yellow Profile SIMs. Our engineers are actively investigating the situation to resolve it as quickly as possible.

Supplier experiencing API service disruption under investigation. Affected countries: None

[2026-05-26 08:16:35] - Incident status was updated. Summary: Investigation is currently underway to determine the cause and scope of the incident.

[2026-05-22 03:01:12] - Incident status was updated. Summary: Investigation is underway for service congestion causing performance issues. Further updates to follow.

[2026-05-17 15:30:00] - Incident status was updated. Summary: Data session establishment has been degraded and is currently under investigation.

[2026-05-14 18:02:13] - Incident status was updated. Summary: Connectivity issues are being investigated affecting devices on the mobile network in Poland. Customers may experience intermittent connectivity or service degradation. The team is actively working to identify the root cause and restore normal service.

We are currently seeing intermittent service issues affecting Blue and Yellow Profile SIMs. We are actively working with our upstream providers to deploy additional measures and restore the stability of our service.

We are continuing to investigate this issue.

Supplier experiencing intermittent service issues due to increased load on their infrastructure. Affected countries: XX

Our systems have identified a potential issue for Black, Green and Red Profile SIM cards. Our engineers are actively investigating the situation to resolve it quickly.

Supplier experiencing elevated system load causing rate limiting in provisioning operations. No failed jobs reported. Affected countries: XX

[2026-05-06 11:30:13] - Incident status was updated. Summary: Elevated system load has triggered automatic rate limiting at provisioning job start time. No jobs are stuck or failed. An unresolved underlying factor contributing to the slowdown is currently under investigation.

Investigation underway for a drop in data sessions. Further updates to follow.

The issue has been identified, and our team is actively working to restore full service. Customers should begin to observe service recovery as we continue to implement a fix.