May <var data-var='date'>22</var>, <var data-var='time'>19:40</var> UTC Completed - Marked as completed/canceled May <var data-var='date'>20</var>, <var data-var='time'>16:02</var> UTC Update - [2026-05-20 15:46:24] - Maintenance status was updated. Summary: Scheduled maintenance activities are planned which may cause intermittent connectivity issues during the maintenance window. May <var data-var='date'>20</var>, <var data-var='time'>16:01</var> UTC Scheduled - Scheduled maintenance may cause intermittent connectivity issues during the maintenance window. Affected countries: XX

[External] - Supplier maintenance with potential connectivity impact

May <var data-var='date'>22</var>, <var data-var='time'>04:21</var> UTC Resolved - [2026-05-22 04:05:53] - Incident status was updated. Summary: Service has been fully restored and is now operating normally. May <var data-var='date'>22</var>, <var data-var='time'>03:41</var> UTC Monitoring - [2026-05-22 03:06:32] - Incident status was updated. Summary: Service is recovering and continues to be monitored. May <var data-var='date'>22</var>, <var data-var='time'>03:41</var> UTC Investigating - [2026-05-22 03:01:12] - Incident status was updated. Summary: Investigation is underway for service congestion causing performance issues. Further updates to follow. May <var data-var='date'>22</var>, <var data-var='time'>03:21</var> UTC Monitoring - Supplier experiencing service congestion leading to performance degradation and failures. Service is recovering and being monitored. Affected countries: XX

[External] - Service congestion causing performance issues

May <var data-var='date'>19</var>, <var data-var='time'>14:56</var> UTC Resolved - This incident has been resolved. May <var data-var='date'>19</var>, <var data-var='time'>13:10</var> UTC Monitoring - Our partners and we have implemented mitigations, and the service should now be recovering. We’ll continue to monitor the situation closely. May <var data-var='date'>19</var>, <var data-var='time'>13:03</var> UTC Update - We are continuing to investigate this issue. May <var data-var='date'>19</var>, <var data-var='time'>12:44</var> UTC Investigating - Our systems have identified a potential issue affecting Blue and Yellow Profile SIMs. Customers may experience difficulty establishing new data sessions. Existing data sessions are not affected at this time.

[External] - Data service degradation

May <var data-var='date'>19</var>, <var data-var='time'>07:01</var> UTC Completed - [2026-05-19 07:00:00] - Maintenance status was updated. Summary: Scheduled maintenance has been completed successfully. May <var data-var='date'>12</var>, <var data-var='time'>17:01</var> UTC Update - [2026-05-19 06:00:00] - Maintenance status was updated. Summary: A restart is required on the resilience Session Border Controller. No service disruption is anticipated, but there is an increased risk due to temporary loss of resilience during the maintenance. May <var data-var='date'>12</var>, <var data-var='time'>16:41</var> UTC Scheduled - Maintenance restart on resilience Session Border Controller with no anticipated service disruption Affected countries: None

[External] - Loss of OTT Service Resilience

May <var data-var='date'>18</var>, <var data-var='time'>14:21</var> UTC Completed - Marked as completed/canceled May <var data-var='date'>13</var>, <var data-var='time'>16:21</var> UTC Update - [2026-05-13 16:00:22] - Maintenance status was updated. Summary: Scheduled maintenance is planned which may cause brief periods of intermittent service availability during the maintenance window. May <var data-var='date'>13</var>, <var data-var='time'>16:01</var> UTC Scheduled - Scheduled maintenance may cause brief periods of intermittent connectivity for affected SIM profiles Affected countries: XX

[External] - Scheduled maintenance on signaling infrastructure

May <var data-var='date'>17</var>, <var data-var='time'>16:53</var> UTC Resolved - This incident has been resolved. May <var data-var='date'>17</var>, <var data-var='time'>16:42</var> UTC Monitoring - Following the implementation of the fix, we are beginning to see service recovery. Full propagation of the changes across the infrastructure may take some additional time. Affected customers are advised to reboot their devices, if possible. May <var data-var='date'>17</var>, <var data-var='time'>16:12</var> UTC Identified - Our systems have identified a potential issue affecting Blue and Yellow Profile SIMs. Customers may experience difficulty establishing new data sessions. Our engineers have already implemented a fix and are actively monitoring the situation.

May <var data-var='date'>15</var>, <var data-var='time'>05:01</var> UTC Completed - [2026-05-15 05:00:00] - Maintenance status was updated. Summary: Scheduled maintenance has been completed successfully. May <var data-var='date'>12</var>, <var data-var='time'>14:21</var> UTC Update - [2026-05-14 20:00:00] - Maintenance status was updated. Summary: A software upgrade is being performed on core network infrastructure. No service disruption is expected, but there is an increased risk during the upgrade activity. May <var data-var='date'>12</var>, <var data-var='time'>14:01</var> UTC Scheduled - Software upgrade on mobile data gateway infrastructure with potential service risk during maintenance window. Affected countries: XX

[External] - Mobile Data Gateway Maintenance

May <var data-var='date'>14</var>, <var data-var='time'>21:21</var> UTC Resolved - [2026-05-14 21:07:34] - Incident status was updated. Summary: Services have been recovered and data services are operating normally. The situation continues to be monitored to ensure service stability. May <var data-var='date'>14</var>, <var data-var='time'>19:00</var> UTC Update - [2026-05-14 19:00:42] - Incident status was updated. Summary: Data service performance degradation identified affecting new data session establishment. Existing sessions remain unaffected. Issue has been confirmed and resolution is in progress with active monitoring ongoing. May <var data-var='date'>14</var>, <var data-var='time'>17:01</var> UTC Identified - [2026-05-14 16:58:21] - Incident status was updated. Summary: Data service performance degradation identified for specific devices. New data sessions may experience difficulties while existing sessions remain unaffected. Investigation ongoing to identify root cause and implement resolution. May <var data-var='date'>14</var>, <var data-var='time'>17:01</var> UTC Investigating - [2026-05-14 16:45:40] - Incident status was updated. Summary: Investigating degradation in data service performance. Devices may experience difficulties establishing new data sessions, while existing sessions remain unaffected. Working to identify the cause and resolve the issue. May <var data-var='date'>14</var>, <var data-var='time'>17:01</var> UTC Identified - Devices may experience difficulties establishing new data sessions on Green SIM profile. Existing sessions remain unaffected. Affected countries: XX

May <var data-var='date'>14</var>, <var data-var='time'>21:20</var> UTC Resolved - [2026-05-14 21:16:25] - Incident status was updated. Summary: The incident has been resolved. May <var data-var='date'>14</var>, <var data-var='time'>20:40</var> UTC Monitoring - [2026-05-14 20:29:24] - Incident status was updated. Summary: Connectivity has been restored on the mobile network in Poland and services are operating normally. The situation continues to be monitored to ensure service stability. May <var data-var='date'>14</var>, <var data-var='time'>18:21</var> UTC Identified - [2026-05-14 18:10:46] - Incident status was updated. Summary: The issue affecting connectivity in Poland has been identified and contact has been established with the operator to restore service. As a temporary measure, connectivity through the affected network has been restricted. Customers can continue using alternative networks in the country which are operating normally. Further updates will be provided as information becomes available. May <var data-var='date'>14</var>, <var data-var='time'>18:21</var> UTC Investigating - [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. May <var data-var='date'>14</var>, <var data-var='time'>18:20</var> UTC Identified - Connectivity issues detected on a mobile network operator in Poland. Service temporarily restricted on affected network, alternative networks available. Affected countries: PL

[External] - Mobile network connectivity issues in Poland

May <var data-var='date'>14</var>, <var data-var='time'>18:01</var> UTC Completed - [2026-05-14 18:00:09] - Maintenance status was updated. Summary: The scheduled maintenance has been completed. May <var data-var='date'>14</var>, <var data-var='time'>15:01</var> UTC In progress - [2026-05-14 15:00:07] - Maintenance status was updated. Summary: Scheduled maintenance is currently in progress with updates to be provided as necessary. May <var data-var='date'>14</var>, <var data-var='time'>14:00</var> UTC Update - [2026-05-14 14:00:10] - Maintenance status was updated. Summary: Scheduled maintenance will begin in 60 minutes. May <var data-var='date'>13</var>, <var data-var='time'>16:01</var> UTC Update - [2026-05-13 15:51:44] - Maintenance status was updated. Summary: Scheduled maintenance is planned which may cause brief periods of intermittent service availability during the maintenance window. May <var data-var='date'>13</var>, <var data-var='time'>16:01</var> UTC Scheduled - Supplier performing scheduled maintenance on signaling hub platform. Brief periods of intermittent connectivity may occur during the maintenance window. Affected countries: XX

May <var data-var='date'>14</var>, <var data-var='time'>07:01</var> UTC Completed - Marked as completed/canceled May <var data-var='date'> 6</var>, <var data-var='time'>16:00</var> UTC Update - [2026-05-06 15:22:56] - Maintenance status was updated. Summary: Scheduled maintenance is planned which may cause brief periods of intermittent service availability during the maintenance window. May <var data-var='date'> 6</var>, <var data-var='time'>15:41</var> UTC Scheduled - Supplier performing scheduled signaling platform maintenance that may cause brief periods of intermittent service availability Affected countries: XX

[External] - Scheduled maintenance may cause brief connectivity interruptions

May <var data-var='date'>13</var>, <var data-var='time'>08:30</var> UTC Completed - The scheduled maintenance has been completed. May <var data-var='date'>13</var>, <var data-var='time'>08:00</var> UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'>12</var>, <var data-var='time'>06:56</var> UTC Scheduled - During this maintenance window, we will migrate our accounting system to new infrastructure. SIM connectivity will not be affected.

Migration of accounting system

May <var data-var='date'>12</var>, <var data-var='time'>19:01</var> UTC Completed - [2026-05-12 19:00:07] - Maintenance status was updated. Summary: The scheduled maintenance has been completed. May <var data-var='date'>12</var>, <var data-var='time'>14:01</var> UTC In progress - [2026-05-12 14:00:07] - Maintenance status was updated. Summary: Scheduled maintenance is currently in progress with updates to be provided as necessary. May <var data-var='date'>12</var>, <var data-var='time'>13:01</var> UTC Update - [2026-05-12 13:00:12] - Maintenance status was updated. Summary: Scheduled maintenance will begin in 60 minutes. May <var data-var='date'>12</var>, <var data-var='time'>02:41</var> UTC Update - [2026-05-12 02:35:42] - Maintenance status was updated. Summary: Scheduled maintenance is planned which may cause brief periods of intermittent service availability during the maintenance window. May <var data-var='date'>12</var>, <var data-var='time'>02:41</var> UTC Scheduled - Scheduled maintenance may cause brief periods of intermittent connectivity for affected SIM profiles Affected countries: XX

May <var data-var='date'>12</var>, <var data-var='time'>16:00</var> UTC Resolved - This incident has been resolved. May <var data-var='date'>12</var>, <var data-var='time'>15:34</var> UTC Monitoring - A fix has been implemented. Traffic levels are under control and service has fully recovered. We will continue to monitor. May <var data-var='date'>12</var>, <var data-var='time'>14:45</var> UTC Update - We are continuing to investigate this issue. May <var data-var='date'>12</var>, <var data-var='time'>14:43</var> UTC Investigating - 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.

Intermittment Service Issue

May <var data-var='date'>11</var>, <var data-var='time'>15:40</var> UTC Resolved - Earlier today, during a scheduled maintenance performed by one of our upstream providers , intermittent connectivity issues have been observed in the USA. Service Impact: Some API calls may have experienced elevated response times, and limited connectivity inconsistencies may have been intermittently observed. Normal performance has been restored, and we continue to monitor closely to ensure ongoing stability. May <var data-var='date'>11</var>, <var data-var='time'>14:10</var> UTC Monitoring - We have implemented a fix and are observing continued recovery of services impacting Black, Green and Red Profile SIM cards. Monitoring remains ongoing as we work to ensure full stability across all systems. We appreciate your continued patience. May <var data-var='date'>11</var>, <var data-var='time'>13:21</var> UTC Identified - We are observing recovery across impacted Black, Green and Red Profile SIM cards. Our teams remain engaged and are continuing to monitor systems to ensure services return to normal as quickly as possible. Thank you for your continued patience. May <var data-var='date'>11</var>, <var data-var='time'>12:52</var> UTC Investigating - 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.

Intermittent connectivity issues detected

May <var data-var='date'> 8</var>, <var data-var='time'>02:41</var> UTC Completed - [2026-05-08 02:00:00] - Maintenance status was updated. Summary: Scheduled maintenance has been completed successfully. Apr <var data-var='date'>28</var>, <var data-var='time'>15:41</var> UTC Update - [2026-05-07 19:00:00] - Maintenance status was updated. Summary: Additional security features are being introduced by the GRX service provider. Changes will be implemented on an individual roaming partner basis over 3 successive nights between 20:00-03:00 on May 5th, 6th and 7th. No significant service impact is anticipated, though some data sessions may be terminated when changes are applied to the roaming partner they are connected to. Devices will be able to reconnect immediately. Service performance will be closely monitored during the change windows. Apr <var data-var='date'>28</var>, <var data-var='time'>15:22</var> UTC Scheduled - Supplier implementing GRX security enhancements over three nights. Brief data session interruptions expected as changes are applied to roaming partners. Devices can reconnect immediately after disconnection. Affected countries: XX

[External] - GRX security maintenance affecting roaming services

May <var data-var='date'> 7</var>, <var data-var='time'>02:21</var> UTC Update - [2026-05-07 02:00:00] - Maintenance status was updated. Summary: Scheduled maintenance has been completed successfully. May <var data-var='date'> 7</var>, <var data-var='time'>02:00</var> UTC Completed - The scheduled maintenance has been completed. May <var data-var='date'> 6</var>, <var data-var='time'>19:00</var> UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 6</var>, <var data-var='time'>18:37</var> UTC Update - We will be undergoing scheduled maintenance during this time. Apr <var data-var='date'>28</var>, <var data-var='time'>15:22</var> UTC Update - [2026-05-06 19:00:00] - Maintenance status was updated. Summary: Additional security features are being introduced by the GRX service provider. Changes will be implemented on an individual roaming partner basis over 3 successive nights between 20:00-03:00 on May 5th, 6th and 7th. Some data sessions may be terminated when changes are implemented to the roaming partner they are connected to, but devices will be able to reconnect immediately. Service performance will be closely monitored during the change windows. Apr <var data-var='date'>28</var>, <var data-var='time'>15:22</var> UTC Scheduled - Supplier performing GRX security enhancements that may cause temporary data session terminations. Devices can reconnect immediately after disconnection. Affected countries: XX

[External] - Roaming network maintenance

May <var data-var='date'> 6</var>, <var data-var='time'>18:54</var> UTC Resolved - This incident has been resolved. May <var data-var='date'> 6</var>, <var data-var='time'>18:38</var> UTC Identified - We are extending the maintenance window for the migration of our accounting and billing system to a new provider. We are working through a technical issue and will provide an update shortly. SIM connectivity is not affected.

Accounting system migration issues

May <var data-var='date'> 6</var>, <var data-var='time'>18:30</var> UTC Completed - The scheduled maintenance has been completed. May <var data-var='date'> 6</var>, <var data-var='time'>18:00</var> UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'> 5</var>, <var data-var='time'>09:20</var> UTC Scheduled - During this window, we will migrate our accounting and billing system to a different provider. SIM connectivity is not affected.

May <var data-var='date'> 6</var>, <var data-var='time'>16:41</var> UTC Resolved - [2026-05-06 16:14:55] - Incident status was updated. Summary: The incident has been resolved. May <var data-var='date'> 6</var>, <var data-var='time'>14:41</var> UTC Monitoring - [2026-05-06 14:16:04] - Incident status was updated. Summary: A fix has been implemented and is currently being monitored for effectiveness. May <var data-var='date'> 6</var>, <var data-var='time'>11:41</var> UTC Update - [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. May <var data-var='date'> 6</var>, <var data-var='time'>11:41</var> UTC Investigating - Supplier experiencing elevated system load causing rate limiting in provisioning operations. No failed jobs reported. Affected countries: XX

[External] - Provisioning System Performance Degradation

May <var data-var='date'> 6</var>, <var data-var='time'>09:21</var> UTC Completed - [2026-05-06 07:00:00] - Maintenance status was updated. Summary: Scheduled maintenance has been completed successfully. Apr <var data-var='date'>30</var>, <var data-var='time'>17:41</var> UTC Update - [2026-05-06 06:00:00] - Maintenance status was updated. Summary: Signalling links for the service require a reset. No service disruption is anticipated, however there is an increased risk due to temporary loss of resilience during the maintenance activity. Apr <var data-var='date'>30</var>, <var data-var='time'>17:41</var> UTC Scheduled - Signalling links reset required for OTT service with no anticipated service disruption but increased risk due to loss of resilience Affected countries: XX

May <var data-var='date'> 6</var>, <var data-var='time'>02:41</var> UTC Completed - [2026-05-06 02:00:00] - Maintenance status was updated. Summary: Scheduled maintenance has been completed successfully. May <var data-var='date'> 5</var>, <var data-var='time'>08:15</var> UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Apr <var data-var='date'>28</var>, <var data-var='time'>15:22</var> UTC Update - [2026-05-04 20:00:00] - Maintenance status was updated. Summary: Additional security features are being introduced by the GRX service provider. Changes will be implemented on an individual roaming partner basis over 4 successive nights between 20:00-03:00 on May 4th, 5th, 6th and 7th. Attachments might fail when changes are applied to the roaming partner they are connected to. Devices should be able to reconnect immediately although device reboots may be required. Service performance will be closely monitored during the change windows. This applies to : Blue & Yellow Profile SIMs only Apr <var data-var='date'>28</var>, <var data-var='time'>15:22</var> UTC Scheduled - Supplier implementing GRX security enhancements that may cause temporary data session terminations during maintenance windows. Devices should be able to reconnect immediately after disconnection, otherwise a device reboot may be required. Affected countries: XX

[External] - GRX security maintenance affecting roaming connectivity

May <var data-var='date'> 4</var>, <var data-var='time'>23:00</var> UTC Resolved - During the scheduled GRX security maintenance performed by the external provider, Blue & Yellow Profile SIM devices experienced temporary roaming connectivity interruptions and failed network attachments. The impact occurred during the maintenance window while security enhancements were being applied to specific roaming partners, causing intermittent session terminations. Most devices reconnected automatically after the disruption, although some required a manual reboot to restore connectivity. The maintenance activities are scheduled to continue across May 5th, 6th, and 7th between 20:00–03:00 CET.

Connectivity issues due to Scheduled GRX Security Maintenance

Apr <var data-var='date'>30</var>, <var data-var='time'>06:01</var> UTC Completed - [2026-04-30 05:00:00] - Maintenance status was updated. Summary: Scheduled maintenance has been completed successfully. Apr <var data-var='date'>20</var>, <var data-var='time'>11:21</var> UTC Update - [2026-04-29 20:30:00] - Maintenance status was updated. Summary: A software upgrade is being performed on core network infrastructure. No service disruption is expected, but there is an increased risk during the upgrade activity. Apr <var data-var='date'>20</var>, <var data-var='time'>11:01</var> UTC Scheduled - Supplier performing software upgrade on packet gateway infrastructure with potential service impact risk Affected countries: XX

[External] - Mobile data gateway maintenance

Apr <var data-var='date'>27</var>, <var data-var='time'>09:21</var> UTC Resolved - [2026-04-27 09:18:53] - Incident status was updated. Summary: Monitoring has remained stable. The system causing the problem has been isolated and investigation into the root cause is ongoing. Apr <var data-var='date'>27</var>, <var data-var='time'>07:21</var> UTC Monitoring - [2026-04-27 07:10:24] - Incident status was updated. Summary: A fix has been implemented and is currently being monitored for effectiveness. Apr <var data-var='date'>27</var>, <var data-var='time'>07:21</var> UTC Identified - [2026-04-27 06:57:49] - Incident status was updated. Summary: Investigation is ongoing to resolve the connectivity issue. Apr <var data-var='date'>27</var>, <var data-var='time'>07:21</var> UTC Investigating - [2026-04-27 06:48:51] - Incident status was updated. Summary: Investigation is currently underway to determine the cause and scope of the incident. Apr <var data-var='date'>27</var>, <var data-var='time'>07:01</var> UTC Identified - Supplier is investigating data session establishment problems that may affect connectivity Affected countries: XX

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Lastest published events

[External] - Supplier maintenance with potential connectivity impact

[External] - Service congestion causing performance issues

[External] - Data service degradation

Simbase Services, Components and Regions

Recent Simbase events

[External] - Supplier maintenance with potential connectivity impact

[External] - Service congestion causing performance issues

[External] - Data service degradation

[External] - Loss of OTT Service Resilience

[External] - Scheduled maintenance on signaling infrastructure

[External] - Data service degradation

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Is Simbase down?

Simbase status is UP

Lastest published events

[External] - Supplier maintenance with potential connectivity impact

[External] - Service congestion causing performance issues

[External] - Data service degradation

Simbase Services, Components and Regions

Recent Simbase events

[External] - Supplier maintenance with potential connectivity impact

[External] - Service congestion causing performance issues

[External] - Data service degradation

[External] - Loss of OTT Service Resilience

[External] - Scheduled maintenance on signaling infrastructure

[External] - Data service degradation

Get your FREE account now,5 monitors included!

Get your FREE account now,
5 monitors included!