Access Tracker is the wrong tool here, it's request history, so you'll always be fighting duplicates. Endpoints is the right repository, it holds current state per MAC.
Under Configuration, Identity, Endpoints you can filter on the profile fields (Device Category, Family, Name) and search on MAC. The UI filter is limited for combining two conditions like profile plus OUI, so if you need that regularly the Endpoints API is the cleaner path: pull the endpoint list with a filter on the device attributes and match the OUI prefix on your side. Same data, and you can schedule it.
Insight also has endpoint reports if you'd rather have something scheduled and emailed without scripting.
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Dustin Burns
Lead Mobility Engineer @Worldcom Exchange, Inc.
ACCX 1271| ACMX 509| ACSP | ACDA | MVP Guru 2022-2023
If my post was useful accept solution and/or give kudos
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