Can one apply iOS Developer Program ($99/year) and iOS Developer Enterprise Program ($299/year) at the same time?

Question

From https://developer.apple.com/programs/start/enterprise/create.php I see this:

You can enroll in the iOS Developer Enterprise Program with the same Apple ID you use for other services like iCloud and the Apple Online Store. However, if you are already enrolled in an Apple Developer Program or have an iTunes Connect account for distributing another media type (music, TV, movies, or books), you need to use a different Apple ID for your enrollment.

It seems that people can't use the original Apple ID to enroll if having enrolling iOS Developer Program ($99/year). Is it necessary to use a new Apple ID?

How about D-U-N-S? Can two Apple IDs use the same D-U-N-S?

Answer 1

Nope. Its not possible.

If you are already registered for iOS Developer program then you want to go for the Enterprise program then you have to contact Apple for that. Contact Apple

If you are already registered for the iOS Enterprise program then you must have to setup new account for iOS developer program.

Q : I am already enrolled in the iOS Developer Enterprise Program. Can I add the iOS Developer Program to my existing account?

A : No. If you would like to distribute apps on the App Store, you must set up a new Apple ID to enroll in the iOS Developer Program.

For more info refer Program Enrollment