What is an android application that can delete all contacts from the phone book at once?

Question

Android

What is an android application that can delete all contacts from the phone book at once?
We need a way to delete 10,000 contacts from the phone book, on the android itself (bluestaks) this cannot be done. Deleting via google.com/contacts is also not an option.

Answer 1

You can root and just delete the contacts database file /data/data/*.providers.contacts/databases/*.db.
Of course, only local contacts will be deleted, everything will remain in the cloud.