AWS Outage History
Daily status observations, past incidents, and reported issue history for AWS.
Checking current status...
90-Day Trend
Monthly Status Summary
| Month | Issue-free days | Days Tracked | Days with Issues |
|---|---|---|---|
| August 2026 | 64% | 25 | 9 |
| July 2026 | 64.5% | 31 | 11 |
| June 2026 | 83.3% | 30 | 5 |
| May 2026 | 100% | 5 | 0 |
This percentage summarizes normalized provider-status observations by calendar day. It is not duration-based, component-weighted, or contractual uptime. See the methodology and limitations.
Daily Status (Last 91 Days)
May 27
Today
Operational
Degraded
Partial Outage
Major Outage
Maintenance
No Data
Incident History
August 2026
Service is operating normally: [RESOLVED] Increased Error Rates
Started:
resolved
Between 4:58 PM and 6:34 PM PDT, we experienced increased delays affecting real-time metrics for Amazon Connect in the AP-NORTHEAST-1 Region, resulting in missing or stale data. During this time, customers may have experienced missing data within analytics reports, and may have observed issues if accessing realtime metrics within contact Flows, such as checking agent staffing. We identified the root cause to be an issue with the subsystem responsible for metric event delivery. We started appl...
Service impact: Increased Error Rates
Started:
investigating
AP-NORTHEAST-1リージョンにおいて、エラー率が上昇しており、リアルタイムメトリクスに影響が出ています。お客様はリアルタイムメトリクスデータの欠落または遅延を経験する可能性があります。| We are experiencing increased error rates affecting real-time metrics in the AP-NORTHEAST-1 Region. Customers may experience missing or delayed real-time metric data.
Service is operating normally: [RESOLVED] Increased Error Rates
Started:
resolved
Between August 18 5:00 PM and August 19 11:00 AM PDT, we experienced elevated errors launching EC2 instances in a newly launched Availability Zone (euw2-az4) in the EU-WEST-2 Region. After the new Availability Zone launch, we began experiencing errors when using a default VPC. We discovered the root cause of the issue on August 19 at 9:00 AM and began deploying a change to resolve the issue at 9:30 AM. While the change was underway, we began to see incremental improvements in new instance lau...
Service impact: Increased Error Rates
Started:
investigating
On August 18 we launched a new Availability Zone (euw2-az4) in the EU-WEST-2 Region. After the launch, we began experiencing errors launching EC2 instances in the new Availability Zone when a default subnet is not present. We can confirm that existing running instances and resources are not affected. Workflows that automatically get a list of Availability Zones in the Region via the DescribeAvailabilityZones API and then attempt to launch new instances or create resources in the new Availabil...
Service impact: Increased Error Rates
Started:
investigating
We are investigating an issue that is impacting launching new EC2 instances and resources in a newly launched Availability Zone (euw2-az4) in the EU-WEST-2 Region. During this time, affected customers may experience issues when creating or modifying resources in the Region. Other AWS services may also be impacted. For immediate recovery, we recommend that customers use alternative Availability Zones (euw2-az1, euw2-az2, and euw2-az3) where applicable. Existing running instances and resources ...
Service is operating normally: [RESOLVED] Increased Packet loss
Started:
resolved
Starting August 14 7:33 PM PDT, we experienced increased packet loss impacting AWS Direct Connect connectivity for customers with connections at the Equinix FR5 location in Frankfurt, DEU. Engineers were automatically engaged at 7:45 PM on August 14 and immediately began investigating mitigations. By 8:30 PM, we identified that network equipment at the FR5 location was impaired due to water ingress into the co-location facility. As a result, cooling system was impaired which resulted in devic...
Service impact: Increased Packet loss
Started:
resolved
We are seeing significant recovery for most of the customer connections at this stage. While we are not yet fully recovered, restoration efforts are progressing as expected at the Equinix FR5 location in Frankfurt, DEU. Remediation of remaining infrastructure involves completion of hardware replacements and traffic validation, both of which are actively underway. We anticipate further customer-visible recovery as the remaining infrastructure is brought back into service.
Customers with conn...
Service impact: Increased Packet loss
Started:
investigating
We continue to work on bringing affected hardware back online. Since our last update we have made progress that will not be visible to customers, but is required for recovery. We are working in parallel to bring all devices online as safely as possible. This work is expected to take several hours to complete and validate.
For customers that require workarounds, we recommend that you consider failing over to VPN. For customers using Direct Connect gateway and Transit Gateway, you can create a...
Service impact: Increased Packet loss
Started:
resolved
We are seeing broad signs of recovery at the Equinix FR5 location in Frankfurt, DEU. We have restored connectivity for the majority of affected hardware and most of the connections are fully recovered and stable. There are a small number of customers that will remain affected until the remaining devices are fully restored. We will provide another update by 2:00 PM PDT, or sooner as remediation progresses.
Service impact: Increased Packet loss
Started:
investigating
We continue to work on phased remediation incrementally at the Equinix FR5 location in Frankfurt, DEU. We are seeing early signs of recovery while we continue to fully remediate the issue. We are actively working to bring the remaining affected hardware back online and we will provide another update by 12:30 PM PDT, or sooner as remediation progresses.
Service impact: Increased Packet loss
Started:
resolved
We continue to make progress in our phased remediation at the Equinix FR5 location in Frankfurt, DEU. Network infrastructure and dependent systems continue to improve as we bring affected hardware back online. Some replacement hardware has been delivered and installation is proceeding as components arrive on-site. In parallel, we are shifting network traffic to allow restored devices to begin serving customers as they come online.
As we progress through recovery, customers will observe rest...
Service impact: Increased Packet loss
Started:
resolved
We continue to make progress in our phased remediation at the Equinix FR5 location in Frankfurt, DEU. Since our last update, some dependent network infrastructure has been restored. Remediation of remaining infrastructure is ongoing, with a portion of recovery dependent on the delivery of replacement hardware. Cooling has been fully restored, with environmental conditions stable within normal operating thresholds.
Customers with connections exclusively at this location will continue to exper...
Service impact: Increased Packet loss
Started:
investigating
We have completed our assessment of the impacted network equipment at the Equinix FR5 location in Frankfurt, DEU and now have a clear understanding of the scope of impact. We are making progress toward restoring connectivity and will be taking a phased approach to remediation.
Customers with connections exclusively at this location will continue to experience packet loss until remediation is complete. Customers with multi-site or redundant configurations across other Direct Connect locations...
Service impact: Increased Packet loss
Started:
investigating
The electrical isolation at Equinix FR5 in Frankfurt, DEU is now complete and our engineers have begun physically inspecting the impacted network equipment. We do not yet have a timeline for full resolution while we continue to assess the extent of impact to equipment.
Direct Connect connections at this location remain impaired. Customers with connections exclusively at this location will continue to experience packet loss. Customers with multi-site or redundant configurations across other D...
Service impact: Increased Packet loss
Started:
investigating
We continue to work with our co-location partner to restore connectivity at the Equinix FR5 location in Frankfurt, DEU. Since our last update, we have made significant progress toward restoring safe access to the affected area. The electrical isolation procedure is now underway, with our teams on site in the electrical room executing the de-energization of the affected infrastructure. Once isolation is verified and confirmed safe, engineers will begin a physical inspection of the impacted net...
Service impact: Increased Packet loss
Started:
resolved
We are actively engaged with co-location partner to restore connectivity at Equinix FR5 location in Frankfurt, DEU. Since our last update, we have made incremental progress to restore safe access to the affected area at the Equinix FR5 location in Frankfurt, DEU. In parallel, we have prioritized the order in which critical and high-priority racks will be restored, as part of the mitigation efforts. Based on our current assessment, full recovery is not expected in the near term and may extend ...
Service impact: Increased Packet loss
Started:
investigating
Our co-location partner is continuing work to restore safe access to the affected area at the Equinix FR5 location in Frankfurt, DEU. Once safe access has been secured, our engineers will be able to assess the affected network devices. We continue to closely track progress and will share an update by 9:30 PM PDT, or sooner as new information becomes available.
Service impact: Increased Packet loss
Started:
investigating
Our co-location partner continues to work to resolve the underlying facility infrastructure issue at the Equinix FR5 location in Frankfurt, DEU. Access to the affected area is currently restricted due to safety concerns, which is impacting our ability to assess the physical condition of the network equipment and provide a more accurate recovery timeline. Based on current information, full recovery is not expected in the near term and may extend beyond today. AWS Direct Connect connections at ...
Service impact: Increased Packet loss
Started:
investigating
Engineers continue work to restore connectivity at Equinix FR5 location in Frankfurt, DEU. Our co-location partner is working to resolve the underlying facility infrastructure issue and while the improvements are not yet customer visible, we are making positive progress towards resolution. For customers who require immediate recovery, we recommend failing over to VPN, as outlined in our previous updates. We will provide another update by 9:30 AM PDT, or sooner if we have additional informatio...
Service impact: Increased Packet loss
Started:
investigating
AWS Direct Connect connectivity remains impaired for customers with connections at the Equinix FR5 location in Frankfurt, DEU. Customers with multi-site or redundant configurations across other locations continue to be unaffected. Engineers are actively working to restore connectivity, with efforts ongoing across multiple workstreams to resolve the underlying facility issue and bring the impacted network equipment back into service. We continue to expect recovery is multiple hours away. For a...
Service impact: Increased Packet loss
Started:
investigating
We continue to work towards recovery of connectivity for AWS Direct Connect connections at Equinix FR5, Frankfurt, DEU. The root cause is related to a facility infrastructure issue at the location that is impacting network infrastructure. Customers with connections solely at this location will continue to experience packet loss or connectivity degradation. Customers with multi-site or redundant configurations across other locations are not impacted. For a workaround, impacted customers who ha...
Service impact: Increased Packet loss
Started:
investigating
We are actively working to restore connectivity through the Direct Connect location: Equinix FR5, Frankfurt, DEU. Customers whom only have connections at the Equinix FR5, Frankfurt, DEU location will continue to experience connectivity issues. For a workaround impacted customers who have the option available to failover to VPN are recommended to do so to achieve recovery. For customers using Direct Connect gateway and Transit Gateway, we recommend creating a AWS Site-to-Site VPN and attach it...
Service impact: Increased Packet loss
Started:
investigating
Starting at 7:33 PM PDT, we began experiencing increased packet loss impacting AWS Direct Connect connectivity for some customers in the EU-CENTRAL-1 Region. While we have made progress, connections to the following Direct Connect location are still impaired: Equinix FR5, Frankfurt, DEU. Customers who have multi-site redundancy configured with their Direct Connect paths should not be observing impact at this time. Customers whom only have connections at the Equinix FR5, Frankfurt, DEU locatio...
Service impact: Increased Packet loss
Started:
investigating
We can confirm packet loss impacting Direct Connect connections in the EU-CENTRAL-1 Region. Engineers were automatically engaged and immediately began working to both identify the root cause, and identify multiple parallel paths to mitigate the issue. At this time, we are seeing early signs of recovery. We will provide another update in 60 minutes, or sooner if we have additional information to share.
Service impact: Increased Packet loss
Started:
investigating
We are investigating increased packet loss, impacting AWS Direct Connect connectivity for some customers in the EU-CENTRAL-1 Region.
July 2026
Service is operating normally: [RESOLVED] Elevated Packet Loss
Started:
resolved
Between 9:42 AM and 11:44 AM PDT, we experienced elevated network packet loss impacting AWS Direct Connect connectivity in the AP-SOUTH-1 Region. Our engineering team was automatically engaged at 9:46 AM to begin investigating. By 10:51 AM, we understood the root cause to be a configuration change made to a system responsible for assigning routes to devices. As we gained confidence in our mitigation steps, we parallelized our efforts to further reduce the packet loss. The issue is resolved an...
Service impact: Elevated Packet Loss
Started:
investigating
We have identified the root cause to be related to a change made to a configuration system responsible for assigning routes to the devices. We have begun the work to reduce the packet loss that is impacting AWS Direct Connect in the AP-SOUTH-1 Region, and we expect recovery to take place gradually over the next 30 minutes. As we gain confidence in these efforts, we will seek to parallelize our efforts to speed recovery. We will provide another update by 12:00 PM PDT.
Service impact: Elevated Packet Loss
Started:
investigating
We can confirm elevated network packet loss, impacting AWS Direct Connect connectivity in AP-SOUTH-1 Region. Our engineering team was automatically engaged at 9:54 AM to begin investigating the issue. There are no workarounds available at this time. We will provide another update by 11:30 AM PDT.
Service is operating normally: [RESOLVED] Connectivity Issues
Started:
resolved
Between 3:55 AM and 4:15 AM PDT, we experienced connectivity issues that impacted connectivity to the US-WEST-2 Region. This impacted multiple AWS services in the Region. Some customers may have also experienced issues accessing the AWS Management Console, with connection timeouts and unresponsive pages. Connectivity within the Region was not affected. Our engineers were automatically engaged at 4:01 AM PDT, and immediately began investigating this issue. We identified the root cause as an is...
Service impact: Connectivity Issues
Started:
resolved
We continue to see significant signs of recovery as a result of our mitigation efforts for the connectivity issues impacting multiple AWS services in the US-WEST-2 Region. We have identified the root cause as an issue with a networking device responsible for network routing from the Region to the Seattle Metro. Engineers have finished all mitigation work. As routes continue to be restored, customers should see a continued reduction in error rates and timeouts when connecting to affected servi...
Service impact: Connectivity Issues
Started:
investigating
We are seeing initial signs of recovery and continue to work toward full recovery.
Service impact: Connectivity Issues
Started:
investigating
We are investigating connecivity issues impacting multiple AWS services in the US-WEST-2 Region.
Service impact: Connectivity Issues
Started:
investigating
We are investigating connecivity issues impacting multiple AWS services in the US-WEST-2 Region.
Service is operating normally: [RESOLVED] Inaccurate Estimated Billing Data
Started:
resolved
Between July 16 at 7:38 PM PDT and July 17 at 6:00 AM PDT, customers received erroneous budget and cost anomaly detection alerts, and saw inflated estimated cost and usage data in the Billing and Cost Management Console and the Cost and Usage Reports. These inaccurate billing estimates did not affect customer invoices.
On July 16, 2026 at 7:46 PM PDT, our alarms detected cost anomalies but failed to halt the estimated bill generation process or alert our engineering teams. Our engineering t...
Service impact: Inaccurate Estimated Billing Data
Started:
resolved
We continue to make substantial progress toward resolving the issue affecting estimated cost and usage data displayed in the Billing and Cost Management Console. Our mitigation efforts are working as expected and we are seeing an increasing number of accounts reflecting correct cost and usage data. We expect all affected accounts to be fully recovered by July 19, 12:00 AM PDT. Until the backfill is complete, some customers may still observe incorrect cost and usage data in the Billing and Cos...
Service impact: Inaccurate Estimated Billing Data
Started:
resolved
We continue to make steady progress toward resolving the issue affecting estimated cost and usage data displayed in the Billing and Cost Management Console. Our efforts to backfill corrected data remain underway, and we expect all affected accounts to be fully recovered by July 19, 12:00 AM PDT. Until the backfill is complete, some customers may still observe incorrect cost and usage data in the Billing and Cost Management Console and Cost and Usage Reports. These estimates do not reflect act...
Service impact: Inaccurate Estimated Billing Data
Started:
resolved
Our efforts to backfill corrected estimated cost and usage data are still underway. We are progressing slower than anticipated. While we are seeing some accounts recover with correct cost and usage data, we expect all affected accounts to be recovered by July 19 12:00 AM PDT. Until the backfill is complete, some customers may still see incorrect cost and usage data. The displayed billing estimates do not reflect actual usage and charges. There are no customer actions required at this time. We...
Service impact: Inaccurate Estimated Billing Data
Started:
investigating
We have identified the root cause and mitigated the underlying issue causing incorrect estimated cost and usage data to be displayed in the Billing and Cost Management Console, and Cost and Usage Reports. We have begun backfilling data to correct cost data for all customers. We expect some customers to begin seeing recovery within the next three hours, and full recovery for all customers by July 18 12:00 PM PDT. Until the backfill is complete, some customers may still see incorrect cost and u...
Service impact: Inaccurate Estimated Billing Data
Started:
investigating
We continue to work to resolve the issue affecting estimated cost and usage data displayed in the Billing and Cost Management Console, including the Cost and Usage Report. The rollback of a recent change did not resolve the issue and we are continuing to investigate multiple mitigation paths. Estimated bill updates remain paused. We are in the process of reverting to the last accurate estimated billing data. The displayed billing estimates do not reflect actual usage and charges. There are no...
Service impact: Inaccurate Estimated Billing Data
Started:
investigating
We continue to work on multiple mitigation paths in parallel to resolve the issue affecting estimated cost and usage data displayed in the Billing and Cost Management Console, including the Cost and Usage Report. We are evaluating resuming estimated billing computations, as our internal monitoring indicates the billing computation subsystem is now producing accurate estimates. We are conducting additional validation before proceeding with this path. The displayed billing estimates do not refl...
Service impact: Inaccurate Estimated Billing Data
Started:
investigating
We continue to work to resolve the issue affecting estimated cost and usage data displayed in the Billing and Cost Management Console. We are actively working on multiple mitigation paths in parallel. The first path involves reverting to the last known good estimated bill computation. With this approach, customers will only see cost and usage data through July 15, however the inflated cost data will be removed. The second path involves rolling back a recent change to the billing computation s...
Service impact: Inaccurate Estimated Billing Data
Started:
investigating
We continue to work to resolve the issue affecting estimated cost and usage data displayed in the Billing and Cost Management Console. As previously shared, we have identified the root cause as an issue with unit pricing within the estimated billing computation subsystem. To prevent further inaccurate billing estimates from being displayed, we have paused estimated billing computations. Customers who are currently seeing normal bill estimates will continue to see those estimates, and customer...
Service impact: Inaccurate Estimated Billing Data
Started:
investigating
We continue to work to resolve the issue affecting estimated cost and usage data displayed in the Billing and Cost Management Console. We have identified the root cause as an issue with unit pricing within the estimated billing computation subsystem and we are working on a mitigation. The displayed billing estimates do not reflect actual usage and charges. There are no customer actions required at this time. Once the issue has been mitigated, we expect full resolution to take multiple hours a...
Service impact: Inaccurate Estimated Billing Data
Started:
investigating
Beginning on July 16 7:38 PM PDT, we began displaying incorrect estimated billing data in the Billing and Cost Management Console. Our engineering teams are engaged and investigating root cause. We will provide another update by 3:00 AM PDT or sooner if more information becomes available.
Service impact: Inaccurate Estimated Billing Data
Started:
investigating
We are investigating issues with Cost Explorer reflecting inaccurate estimated billing data.
Service is operating normally: [RESOLVED] Increased 5xx Errors
Started:
resolved
Between 12:45 AM and 4:18 AM PDT, we experienced increased 5xx errors for CloudFront customers utilizing VPC Origins connectivity. Our engineers were automatically engaged and immediately began investigating the root cause. By 2:57 AM PDT, we identified the root cause of the issue as an internal constraint on the fleet that manages connections to private VPC origins. When this constraint was reached, the system responsible for distributing routing configuration to our network processors faile...
Service impact: Increased 5xx Errors
Started:
investigating
We continue to see significant signs of recovery as a result of our mitigation efforts, with full recovery expected within the next 45 minutes.
Service degradation: Increased 5xx Errors
Started:
investigating
We are seeing initial signs of recovery and continue to work toward full recovery.
Service degradation: Increased 5xx Errors
Started:
investigating
We continue working to resolve the increased 5xx errors for CloudFront customers utilizing VPC Origins connectivity. Customers utilizing other origin types remain unaffected by this issue. We have further scoped the issue down to routing table capacity within the packet processing subsystem responsible for routing requests from CloudFront's edge locations to resources within customer VPCs. We have identified and are currently testing a mitigation strategy to resolve the issue. Once testing is...
Service degradation: Increased 5xx Errors
Started:
investigating
We continue working to resolve the increased 5xx errors for CloudFront customers utilizing VPC Origins connectivity. Customers utilizing other origin types remain unaffected by this issue. Based on our investigation, we believe the root cause is related to a packet processing subsystem responsible for routing requests from CloudFront's edge locations to resources within customer VPCs. We continue to recommend that customers who are able to do so temporarily change their origin type to resolve...
Service impact: Increased 5xx Errors
Started:
investigating
Starting at 12:45 AM PDT, we are experiencing increased 5xx errors for CloudFront customers utilizing VPC Origins connectivity. We have confirmed that customers utilizing other origin types are not impacted by this issue. Our engineers are engaged and are actively working to mitigate impact. As a workaround, customers who do not require VPC Origins can change their origin type to resolve the errors. We will provide another update by 3:15 AM PDT, or sooner if more information becomes available.
Service impact: Increased 5xx Errors
Started:
investigating
We are investigating increased 5xx errors for Cloudfront customers utilizing VPC Origins connectivity.
Service is operating normally: [RESOLVED] Elevated connectivity issues with a single Avalability zone
Started:
resolved
Between 2:56 PM and 6:07 PM PDT, we experienced connectivity issues to a subset of EC2 instances in a single Availability Zone (euc1-az2) in the EU-CENTRAL-1 Region. During this time, customers may also have experienced increased error rates and latencies for new instance launches in the affected zone, along with some AWS APIs that use the affected EC2 instances. Some AWS Services also experienced connectivity issues and increased error rates within the affected zone. Engineers were automatic...
Service impact: Elevated connectivity issues with a single Avalability zone
Started:
investigating
We are seeing early signs of recovery and continue to work toward full resolution. We will continue to provide updates.
Service impact: Elevated connectivity issues with a single Avalability zone
Started:
investigating
We are investigating elevated connectivity issues with a single Avalability zone (euc1-az2) in the EU-CENTRAL-1 Region.
Service is operating normally: [RESOLVED] Increased Launch Template API Error Rates
Started:
resolved
Between 2:56 AM and 6:54 AM PDT, we experienced increased error rates when calling EC2 Launch Template APIs in the US-EAST-1 Region. During this time, affected customers may have experienced errors when creating, modifying, or decribing Launch Templates. Other AWS services that rely on Launch Templates were also impacted. Amazon EC2 instances and Amazon EKS workloads already running on provisioned nodes continued to operate normally. Cluster modification operations, and Managed Node Group cre...
Service impact: Increased Launch Template API Error Rates
Started:
investigating
We are seeing initial signs of recovery and continue to work toward full recovery.
Service impact: Increased Launch Template API Error Rates
Started:
investigating
Starting at 2:56 AM PDT, we began experiencing increased error rates when calling EC2 Launch Template APIs in the US-EAST-1 Region. Our engineers have been engaged and are actively working to mitigate the impact. Additionally, Amazon Elastic Kubernetes (EKS) customers may experience errors when creating or updating clusters, or when launching and scaling nodes via Managed Node Groups, EKS Auto Mode, or Karpenter; this issue does not impact existing clusters and nodes. We have identified the r...
Service impact: Increased Launch Template API Error Rates
Started:
investigating
We are investigating increased error rates when calling EC2 Launch Template APIs in US-EAST-1 Region. During this time, affected customers may experience errors when creating, modifying, or referencing launch templates. Other AWS services that rely on launch templates may also be impacted. We will provide another update by 6:30 AM PDT or sooner, if we have additional information to share.
June 2026
Service is operating normally: [RESOLVED] Increased Error Rates and Latencies
Started:
resolved
Between 1:42 PM and 2:25 PM PDT we experienced increased error rates and latencies for EC2 APIs in the EU-NORTH-1 Region. This issue also affected new instance launches. Other AWS Services that launch new instances or call EC2 APIs as part of their workflows were also affected by this issue. Existing EC2 instances were unaffected by this issue. During this time, customers would have received an Internal Server Error in the Management Console and APIs. Engineers were automatically engaged and ...
Service impact: Increased Error Rates and Latencies
Started:
investigating
We are seeing early signs of recovery and continue to work toward full recovery.
Service impact: EC2 API Errors
Started:
investigating
We can confirm increased error rates for the EC2 APIs, as well as errors launching new EC2 instances in the EU-NORTH-1 Region. Other AWS Services that launch new instances or call the EC2 APIs as part of their workflows may also be affected by this issue. During this time, customers may receive an Internal Server Error in the Management Console and APIs. Engineers were automatically engaged and began investigating the issue. We are actively working on identifying the root cause. Existing inst...
Service impact: EC2 API Errors
Started:
investigating
We are investigating increased launch errors and API errors in the EU-NORTH-1 Region. Existing instances are not affected by this issue.
Service is operating normally: [RESOLVED] Fable 5 and Mythos 5 Access
Started:
resolved
Claude Fable 5 and Claude Mythos 5 models remain unavailable for all users in all regions. We are resolving this Health event. For further details please view the Anthropic statement.
Service impact: Fable 5 and Mythos 5 Access
Started:
investigating
To support compliance with the US Government export control directive, Anthropic has asked us to revoke access to Claude Fable 5 and Claude Mythos 5 for all users in all regions. All other models, including Opus 4.8, are not affected and you can continue using them in full confidence. Please view the Anthropic statement for further details.
Service impact: Internet Connectivity Issues
Started:
resolved
Between 5:50 PM and 7:15 PM PDT, we experienced connectivity issues that may have impacted Internet performance for some customers in the SA-EAST-1 Region. During this time, connectivity to instances and services within the Region was not affected. Our engineering team was automatically engaged at 5:51 PM PDT and immediately began investigating the issue. We identified the root cause and implemented a fix, which mitigated the issue at 7:15 PM PDT. The issue has been resolved and the service i...
May 2026
Service is operating normally: [RESOLVED] Increased API Error Rates
Started:
resolved
Between 4:00 PM and 4:46 PM, we experienced increased error rates for the Route53 APIs. This issue did not impact resolution of existing DNS records. Engineers were automatically engaged and immediately began investigating the issue. During this time, customers may have received 500s for Route53 APIs and the Route53 Management Console. We have identified the root cause and have mitigated this issue. Other AWS Services that call the Route53 APIs in their workflows may also have been impacted d...
Service impact: We are investigating increased error rates for Route53 API calls
Started:
investigating
We are investigating increased error rates for Route53 API calls.
Service impact: Increased API Error Rates
Started:
investigating
We are investigating increased error rates for Route53 API calls.
Service is operating normally: [RESOLVED] Increased Error Rate and Latency
Started:
resolved
Starting May 7 4:20 PM PDT, we experienced increased impaired EC2 instances and degraded EBS volumes in a single facility (data center) within a single Availability Zone (use1-az4) in the US-EAST-1 Region. The issue was caused by a thermal event resulting in a loss of power. As part of our recovery effort, we shifted traffic away from the impacted Availability Zone for most services at May 7 5:06 PM.
AWS services, like Elastic Load Balancing, Elastic Kubernetes Service, ElastiCache, Redshift...
Service impact: Increased Error Rate and Latency
Started:
investigating
We have begun to see improvements in the overall number of affected EC2 instances and degraded EBS volumes in a single Availability Zone (use1-az4) in the US-EAST-1 Region. The steps taken to supply additional cooling capacity have been showing steady signs of progress. Some EBS Volumes and EC2 instances affected by the issue will continue to experience impairments while we continue to drive these efforts. We continue to recommend that customers who require immediate recovery restore from EBS...
Service impact: Increased Error Rate and Latency
Started:
investigating
We continue to work towards the recovery of the impaired EC2 instances and degraded EBS volumes in a single Availability Zone (use1-az4) in the US-EAST-1 Region though efforts are slower than we had previously anticipated. We are taking measured steps to ensure that cooling capacity is brought online in a safe and controlled manner. As a result, EBS Volumes and EC2 instances affected by the issue will continue to experience impairments. We continue to recommend that customers who require imme...
Service impact: Increased Error Rate and Latency
Started:
investigating
We are experiencing an increase in timeouts to Amazon Managed Streaming for Apache Kafka partitions on a subset of clusters as a result of the ongoing issue in a single Availability Zone (use1-az4) in the US-EAST-1 Region. We are working in parallel to determine a path towards mitigation for affected clusters. We will provide an additional update by 12:30 PM or sooner.
Service impact: Increased Error Rate and Latency
Started:
investigating
We have observed complete recovery of increased error rates and query failures for Redshift clusters in the US-EAST-1 Region. We were able to resolve the impact independently of the ongoing efforts to recover the affected hardware in the use1-az4 Availability Zone. The issue affecting Redshift has been resolved and the service is operating normally. We will provide an additional update regarding the efforts towards hardware restoration by 12:30 PM or sooner.
Service impact: Increased Error Rate and Latency
Started:
investigating
We continue our efforts to work towards the recovery of the impaired EC2 instances and degraded EBS volumes in a single Availability Zone (use1-az4) in the US-EAST-1 Region. We are making progress towards the restoration of the cooling system capacity that is required to recover the affected hardware in the impacted zone. Some customers will continue to see their affected EC2 instances and EBS volumes as impaired until the affected racks are recovered. We continue to recommend that customers ...
Service impact: Increased Error Rate and Latency
Started:
investigating
We continue working to resolve the impaired EC2 instances and degraded EBS volumes in a single Availability Zone (use1-az4) in the US-EAST-1 Region caused by a thermal event. During such an event, servers automatically shut down when the temperatures exceeded the operating thresholds in order to protect the hardware. We are actively working to bring additional cooling system capacity online, which will enable us to recover the remaining affected hardware in the impacted zone. Some customers w...
Service impact: Increased Error Rate and Latency
Started:
investigating
We continue to make progress towards resolving the impaired EC2 instances and degraded EBS volumes in a single Availability Zone (use1-az4) in the US-EAST-1 Region. At this time, we wanted to provide some more details on the issue. Beginning on May 7 at 4:20 PM PDT, we began experiencing an increase in instance impairments within the affected zone due to the loss of power during a thermal event. Engineers were automatically engaged within minutes and immediately began investigating multiple m...
Service impact: Increased Error Rate and Latency
Started:
investigating
Mitigation efforts remain underway to resolve the impaired EC2 instances and degraded EBS volumes in a single Availability Zone (use1-az4) in the US-EAST-1 Region. These EC2 instances and EBS volumes were impacted due to a loss of power during the thermal event. The work to bring additional cooling system capacity online, which will enable us to recover the remaining affected infrastructure in a controlled and safe manner, is taking longer than we had initially anticipated. Some services, suc...
Service impact: Increased Error Rate and Latency
Started:
investigating
We continue to make progress in resolving the impaired EC2 instances in the affected Availability Zone (use1-az4) in the US-EAST-1 Region, and are working towards full recovery. We are actively working to bring additional cooling system capacity online, which will enable us to recover the remaining affected racks in a controlled and safe manner. In the impacted Availability Zone, EC2 Instances, EBS Volumes, and other AWS Services may continue to experience elevated error rates and latencies ...
Service impact: Increased Error Rate and Latency
Started:
investigating
We are observing early signs of recovery. We continue to work towards restoring temperatures to normal levels and bring impacted racks back online in the affected Availability Zone (use1-az4) in the US-EAST-1 Region. We have been able to get additional cooling system capacity online, which has allowed us to recover some affected racks and are actively working to recover additional racks in a controlled and safe manner. In the impacted Availability Zone, EC2 Instances, EBS Volumes, and other A...
Service impact: Increased Error Rate and Latency
Started:
investigating
We are actively working to restore temperatures to normal levels in the affected Availability Zone (use1-az4) in the US-EAST-1 Region, though progress is slower than originally anticipated. Since our last update we have made incremental progress to restore cooling systems within the affected AZ, which will not be visible to external customers but are required for the restoration of affected services. In the impacted Availability Zone, EC2 Instances, EBS Volumes, and other AWS Services are als...
Service impact: Increased Error Rate and Latency
Started:
investigating
We continue to work towards mitigating the increased temperatures to its normal levels in the affected Availability Zone (use1-az4) in the US-EAST-1 Region. Other AWS services that depend on the affected EC2 instances and EBS volumes in this Availability Zone, may also experience impairments. We have weighed away traffic for most services at this time. We recommend customers utilize one of the other Availability Zones in the US-EAST-1 Region at this time, as existing instances in other AZ's r...
Service impact: Increased Error Rate and Latency
Started:
investigating
We continue to investigate instance impairments to a single Availability Zone (use1-az4) in the US-EAST-1 Region. We have experienced an increase in temperatures within a single data center, which in some cases has caused impairments for instances in the Availability Zone. EC2 instances and EBS volumes hosted on impacted hardware are affected by the loss of power during the thermal event. Other AWS services that depend on the affected EC2 instances and EBS volumes in this Availability Zone, m...
Service impact: Increased Error Rate and Latency
Started:
investigating
We are investigating instance impairments in a single Availability Zone (use1-az4) in the US-EAST-1 Region. Other Availability Zones are not affected by the event and we are working to resolve the issue.
April 2026
Service disruption: Increased Error Rates
Started:
investigating
We are providing an update on the ongoing service disruption. The Middle East (UAE) Region (ME-CENTRAL-1) has suffered damage as a result of the conflict in the Middle East and is currently unable to reliably support customer applications. While some workloads continue to function normally, we strongly recommend customers migrate all accessible resources to other Regions and restore inaccessible resources from remote backups as soon as possible. Relevant billing operations are currently suspe...
Service disruption: Increased Connectivity Issues and API Error Rates
Started:
investigating
We are providing an update on the ongoing service disruption. The Middle East (Bahrain) Region (ME-SOUTH-1) has suffered damage due to the conflict in the Middle East and is currently unavailable. Customers should recover their resources in other Regions from remote backups. Relevant billing operations are currently suspended while we restore normal operations in this AWS Region. This process is expected to take several months.
Service is operating normally: [RESOLVED] Increased Connectivity Issues
Started:
resolved
Between 3:58 AM and 4:40 AM PDT, we experienced increased error rates and increased launch failures for EC2 instances in a single Availability Zone (euw3-az2) in the EU-WEST-3 Region. During this time, customers attempting to launch new EC2 instances in the affected Availability Zone would have experienced launch failures. Additionally, a subset of existing EC2 instances and EBS volumes in this Availability Zone were impacted and became unreachable.
We have identified the root cause to be a ...
Service impact: Increased Connectivity Issues
Started:
investigating
We are investigating instance connectivity issues in a single Availability Zone (euw3-az2) in the EU-WEST-3 Region.