Is there an API to fetch "Other Known Contacts" added via Call Logs / Recents?

When a user uses the "Add Name" feature on an unknown number in their Call Logs, the name appears under "Other Known Contacts" in the native iOS Contacts app.

• The Problem: CNContactStore completely ignores these contacts during a standard fetch/enumeration.
• When user gives limited permission they can search for that contact and select it, but it won't be visible in my App as it's not technically a contact.

Is CNContactStore intentionally blocked from reading "Other Known Contacts" for privacy reasons or are there any future plans to expose API so that third party apps can access it?