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  Microsoft Government Cloud

The Complete Microsoft Government Portals Directory

All 44 official portal links for GCC, GCC High, GCC Moderate, and DoD environments — organized, verified, and maintained for compliance teams, IT admins, and federal contractors.

44Official Portal Links
5Gov Cloud Environments
2025Verified & Updated
About This Directory

Why Microsoft Government Portal URLs Are Different

Microsoft intentionally isolates its government cloud from the commercial cloud — each environment (GCC, GCC High, and DoD) has completely separate portal URLs, subdomain conventions, and access controls. IT administrators routinely land on the wrong portal, wasting time or triggering access errors.

This directory consolidates all 44 official Microsoft government portals in one place. Whether you're configuring Microsoft Entra GCC High, managing Intune government devices, accessing Azure Government, or navigating the DoD Security Admin Center — every link is here.

For organizations pursuing CMMC compliance, selecting the right Microsoft government cloud tier is a critical first step. GCC High is typically required for defense contractors handling Controlled Unclassified Information (CUI) under DFARS 252.204-7012 and CMMC Level 2+.

This resource is maintained by Capital Cyber, a cybersecurity firm specializing in CMMC assessments, Microsoft 365 GCC High migrations, and federal cloud security for the defense industrial base.

Unsure whether GCC or GCC High is right for you?

Defense contractors handling CUI typically require GCC High. Our team can assess your requirements and guide your migration.

Talk to a CMMC Expert  
Common Questions

Microsoft Government Cloud FAQ

Key answers for IT admins and compliance teams navigating GCC, GCC High, and DoD environments.

What is the difference between GCC and GCC High?

GCC meets FedRAMP Moderate and serves state, local, and federal agencies with non-sensitive data. GCC High meets FedRAMP High and is required for organizations handling Controlled Unclassified Information (CUI), ITAR data, or subject to DFARS 252.204-7012. Most defense contractors pursuing CMMC Level 2 need GCC High.

Do CMMC Level 2 contractors need GCC High?

Yes — in almost all cases. CMMC Level 2 requires all 110 NIST SP 800-171 controls, and CUI must be in a FedRAMP High authorized environment. Microsoft 365 GCC High is the most common platform for DIB contractors. Our team specializes in CMMC assessments and GCC High migrations.

Why are government portal URLs different from commercial?

Microsoft separates government cloud infrastructure to ensure data sovereignty, FedRAMP authorization boundaries, and access controls. Government tenants are hosted on isolated US hardware staffed exclusively by screened US persons — so all admin portals use distinct domains like .microsoft.us or .apps.mil.

What is Microsoft Entra GCC High?

Microsoft Entra (formerly Azure Active Directory) GCC High is the identity and access management platform for GCC High tenants — conditional access, MFA, Privileged Identity Management — within the FedRAMP High boundary. Access it at entra.microsoft.us.

Which portals do DoD contractors use?

DoD portals use .apps.mil and .windows.us domains, restricted to DoD personnel with valid credentials. Primary portals: portal.apps.mil (M365 admin), security.apps.mil (Security admin), and portal.azure.us (Azure). See the full DoD section above for all 12 links.

Does my organization need to migrate to GCC High?

If you hold a DoD contract, handle CUI, or are subject to DFARS or CMMC, you likely need GCC High. Migration from commercial M365 or GCC requires planning for tenant-to-tenant migration, email, SharePoint, OneDrive, and Teams. Contact our team for a free migration assessment.

What is Azure Government used for?

Azure Government provides IaaS and PaaS services — VMs, storage, databases, networking — within FedRAMP High and DoD Impact Level 4/5 boundaries. Both GCC High and DoD tenants use portal.azure.us as their Azure management portal.

How does Defender GCC differ from commercial?

Defender for Endpoint GCC and GCC High are functionally equivalent to commercial Defender but hosted within isolated government infrastructure. GCC: gcc.securitycenter.microsoft.us. GCC High: securitycenter.microsoft.us. DoD: securitycenter.windows.us. All meet CMMC and NIST 800-171 EDR requirements.

Capital Cyber — CMMC & Microsoft Government Cloud Specialists

Need Help Navigating Microsoft Government Cloud for CMMC Compliance?

From GCC High migrations to CMMC Level 2 readiness assessments — our team has guided defense contractors across manufacturing, professional services, and healthcare through federal compliance.

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