diff --git a/windows/security/threat-protection/microsoft-defender-atp/contact-support-usgov.md b/windows/security/threat-protection/microsoft-defender-atp/contact-support-usgov.md
index 8241f211f4..a3ea45d493 100644
--- a/windows/security/threat-protection/microsoft-defender-atp/contact-support-usgov.md
+++ b/windows/security/threat-protection/microsoft-defender-atp/contact-support-usgov.md
@@ -33,11 +33,12 @@ In order to open a support case, you will need to login to your Microsoft Defend
 
 Environment | Portal URL
 :---|:---
-GCC-M | [https://gcc.securitycenter.windows.us](https://gcc.securitycenter.windows.us)
-GCC-H | [https://securitycenter.windows.us](https://securitycenter.windows.us)
-DoD | [https://securitycenter.windows.us](https://securitycenter.windows.us)
+GCC-M on Commercial | [https://securitycenter.microsoft.com](https://securitycenter.microsoft.com)
+GCC-M | [https://gcc.securitycenter.microsoft.us](https://gcc.securitycenter.microsoft.us)
+GCC-H | [https://securitycenter.microsoft.us](https://securitycenter.microsoft.us)
+DoD | [https://securitycenter.microsoft.us](https://securitycenter.microsoft.us)
 
 If you are unable to login to the portal, you can also open a support case using the [phone](https://docs.microsoft.com/microsoft-365/admin/contact-support-for-business-products?view=o365-worldwide&tabs=phone&preserve-view=true).
 
 ## Opening a support case
-For prerequisites and instructions, see [Contact Microsoft Defender for Endpoint support](contact-support.md).
\ No newline at end of file
+For prerequisites and instructions, see [Contact Microsoft Defender for Endpoint support](contact-support.md).