Magistrate Brooke F. Kocab » Directory Go back to directory. Magistrate Brooke F. Kocab Ashtabula County Court of Common Pleas – Juvenile Court 4717 Main Avenue Ashtabula Ohio 44004 work Phone: 440-994-6000work Email: BFKocab@ashtabulacounty.usINTERNET Website: http://www.courts.co.ashtabula.oh.us Categories: Magistrate Updated 4 months ago.