List All Intune Managed Devices in the Tenant

A current inventory of Intune-managed devices is the foundation of almost every device-support workflow: compliance auditing, OS upgrade planning, lost/stolen investigations, license reconciliation, and offboarding. Microsoft Intune exposes every enrolled device through the deviceManagement/managedDevices endpoint in Microsoft Graph.

Run this recipe when you need a point-in-time snapshot of the fleet — for example, before a compliance policy rollout, when preparing an executive health report, or when triaging a help-desk ticket that asks "how many devices does {user} have?". The same query also backs ad-hoc filters like "show me all non-compliant Android devices" or "which Macs haven't synced in 30 days?".

• A complete list of every device enrolled in Intune, including personal and corporate-owned.
• Per-device metadata: device name, primary user (UPN), operating system and version, manufacturer, model, serial number, compliance state, encryption status, and last sync time.
• An exportable dataset (CSV/JSON) you can pivot on for reporting, filter by compliance state, or feed into downstream automation.
• A baseline device count for the tenant that can be compared over time.

Things to watch for

• Large tenants paginate. Graph returns 1,000 devices per page by default. Always follow @odata.nextLink until it is absent, or you will silently undercount.
• Beta endpoint. The /beta/ endpoint exposes richer fields but is not covered by Microsoft's production SLA. Use /v1.0/ for anything automated or alert-driven.
• PII considerations. The result set contains user principal names, serial numbers, IMEIs, and MAC addresses. Treat exports as sensitive and store them according to your data-handling policy.
• Stale records. Devices that were retired or wiped may linger for up to 30 days. Filter on lastSyncDateTime if you need an "active" list.
• Throttling. Very large tenants (50k+ devices) may hit Graph throttling. Use $select to reduce payload size and respect Retry-After headers.