List of Portals used in Azure World
https://preview.portal.azure.com
This is a subset of the main Azure Portal
This is a subset of the main Azure Portal
https://devicemanagement.portal.azure.com
https://www.microsoftazuresponsorships.com
https://account.azure.com/Subscriptions
https://manage.windowsazure.com
https://account.activedirectory.windowsazure.com/usermanagement/multifactorverification.aspx
Public page showing health of all Azure services (useful if you can't log in to the portal)
https://azure.microsoft.com/en-us/status/
https://securitycenter.windows.com
Now redirects to https://www.office.com
https://portal.office.com/commerce/manage.aspx?empty=1
Redirects to https://account.activedirectory.windowsazure.com/r#/applications
https://outlook.office365.com/ecp
Replace contoso with your org URL
https://contoso-admin.sharepoint.com
Replace contoso with your org URL https://contoso-admin.sharepoint.com/_layouts/15/online/AdminHome.aspx
https://admin.teams.microsoft.com/
https://staffhub.office.com/admin
https://webdir0e.online.lync.com/LSCP
Replace contoso.com with your org URL
https://www.yammer.com/contoso.com/admin/
https://app.powerbi.com/admin-portal/
https://www.bingforbusiness.com/admin/
https://admin.powerplatform.microsoft.com/
https://admin.flow.microsoft.com
https://admin.powerplatform.microsoft.com/environments
URL changes depending on your tenant location
https://port.crm.dynamics.com/G/Instances/InstancePicker.aspx or https://port.crm2.dynamics.com/G/Instances/InstancePicker.aspx https://port.crm3.dynamics.com/G/Instances/InstancePicker.aspx etc
Will eventually be superceeded by the separate portals below
https://security.microsoft.com
https://compliance.microsoft.com/
https://portal.cloudappsecurity.com
Formerly https://app.vssps.visualstudio.com
https://manage.visualstudio.com
https://serviceshub.microsoft.com/databoard
https://businessstore.microsoft.com
https://businessaccount.microsoft.com
https://www.microsoft.com/Licensing/servicecenter/default.aspx