Find Microsoft Entra Tenant from Azure Subscription ID
This tool resolves tenantId, displayName and
defaultDomainName for an Azure Subscription ID using the Azure Resource Manager
WWW-Authenticate header and Microsoft Graph’s
tenantRelationships API.
It also supports direct tenant lookups using a tenant ID or domain name.
- Subscription ID
- –
- Tenant ID
- –
- Display name
- –
- Default domain
- –
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sub2tenant lets you find which Microsoft Entra tenant an Azure Subscription ID belongs to
using the Azure Resource Manager (ARM) WWW-Authenticate header and Microsoft Graph.
No sign-in required, and no lookup data stored.