Translate resource tenant ID to name

Mongoose 36 Reputation points

Our sign-in logs show numerous successful single-factor authentication logins even though we enforce multi-factor authentication. The details for these indicate the user is connecting with an external resource. It gives the resource ID and resource tenant ID. I would like to be able to determine what company has this ID. I found numerous posts on how to obtain my own tenant name, but nothing on how to obtain another tenant's name. I view this as similar to whois for internet domain names. How can I determine the name of an entity with a specific tenant ID?

A cloud computing platform and infrastructure for building, deploying and managing applications and services through a worldwide network of Microsoft-managed datacenters.
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Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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Accepted answer
  1. risolis 8,711 Reputation points

    Hi @Mongoose

    Thank one more time for your reply back.

    If you want to use a P1/P2 license, for instance you can activate a Free trial for P2 license and then run the command.


    Please "Accept the answer" if the information helped you. This will help us and others in the community as well.

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6 additional answers

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  1. Joan Badell 11 Reputation points

    Hi @Mongoose .

    Have you found an answer for your problem?

    I have the same problem, and perhaps I have found a solutión to find the tenant name associated with the resource tenant ID.

    In the Azure Active Directory Admin Center you can go to administer External Identities. If you add a new organization and type the tenant ID, you can view the tenant name.

    Regards, Joan Badell

    2 people found this answer helpful.
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  2. risolis 8,711 Reputation points

    Hi @Mongoose

    I was doing a quick check on your concern and I wonder if you need any other detail to get this going....


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  3. Mongoose 36 Reputation points

    I know my own tenant ID and name. I am attempting to determine the tenant name for an external tenant to which some users are authenticating. The sign-in logs show users connecting using application Microsoft Teams Web Client. The Cross tenant access type is B2B collaboration. The resource tenant ID is also listed. I am attempting to determine the tenant name associated with the resource tenant ID. I want to know the external company to which our users are connecting.

    I may not have access to the Partner center web page. Can you send a link so I can test it?

  4. James Hamil 23,061 Reputation points Microsoft Employee

    Hi @Mongoose , can you please try the command you listed below after installing these modules? It worked for me after this.

    Install-Module -Name Microsoft.Graph.Authentication -Repository PSGallery  
    Install-Module -Name MSIdentityTools -RequiredVersion 2.0.3  

    For the "name" you are referring to, are you asking about a name from the following image?


    Or is "name" referring to something else? Please let me know and I can help you further.

    Thank you,

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