Cannot access some .onmicrosoft.com directories
I have 4 directories that are listed when attempting to switch directories in Azure but am unable to access any but the current directory that I am logged into. All other directories are requiring 2FA but I do not have access to the authenticator app that hold the 2FA for those directories. I need to gain access to these, there are Azure subscriptions that have been shut down and are necessary for running the business.
I cannot add these domains to my current tenant to gain access because they are all .onmicrosoft.com domains not custom domains, so I would be unable to verify ownership of them with a record in DNS.