Active Directory Contact reports - Using the active reports, you can extract essential information about contacts from the active directory. Some of the miscellaneous contact reports are,
Mail Enabled Contacts
Managed Contacts / Unmanaged Contacts
Contacts With Direct Reports / Contacts Without Direct Reports
Contacts That Belong To A Group / Contacts That Do Not Belong To A Group
Contacts With Email Address / Contacts Without Email Address
The other active directory contact reports are based on the user information like office, city, country etc.