diff --git a/ai/ti/reference/ti-regions-security-and-limitations.md b/ai/ti/reference/ti-regions-security-and-limitations.md
index c3f5b07581c3f..a4167388427f0 100644
--- a/ai/ti/reference/ti-regions-security-and-limitations.md
+++ b/ai/ti/reference/ti-regions-security-and-limitations.md
@@ -26,6 +26,7 @@ The following table lists the supported regions for TiDB Cloud CLI and shows whi
 | AWS | Tokyo | `aws-ap-northeast-1` | Supported | Not supported |
 | Alibaba Cloud | Singapore | `alicloud-ap-southeast-1` | Supported | Supported |
 | Google Cloud | South Carolina | `gcp-us-east1` | Not supported | Supported |
+| Microsoft Azure | Central US | `azure-centralus` | Not supported | Supported |
 
 If your configured region supports TiDB Cloud Starter but not TiDB Cloud Filesystem, you can manage Starter instances in that region. File system commands fail with an `unsupported endpoint` error.
 
diff --git a/tidb-cloud-filesystem/filesystem-regions-and-limitations.md b/tidb-cloud-filesystem/filesystem-regions-and-limitations.md
index 784d5443a9c29..1407447078006 100644
--- a/tidb-cloud-filesystem/filesystem-regions-and-limitations.md
+++ b/tidb-cloud-filesystem/filesystem-regions-and-limitations.md
@@ -20,6 +20,7 @@ TiDB Cloud Filesystem is available only in the regions and environments listed b
 | AWS | Singapore | `aws-ap-southeast-1` |
 | Alibaba Cloud | Singapore | `alicloud-ap-southeast-1` |
 | Google Cloud | South Carolina | `gcp-us-east1` |
+| Microsoft Azure | Central US | `azure-centralus` |
 
 TiDB Cloud Starter also supports some regions where TiDB Cloud Filesystem is not available. A file system command in one of those regions fails and displays an error indicating that the service is not available for that region, and lists the regions that are supported. Supported file system regions are built into each `ti` release. If support for a region was added after your installed version was released, upgrade `ti`; specifying a service URL cannot enable support for that region.