Ohio MARCS IP: Butler County Radio IDs
From The RadioReference Wiki
Butler County Radio ID Logic
With a few exceptions Hamilton County radio IDs have the following format:
09MMAAA
MM = Municipality AAA = Agency or function
The three digit agency number appears to have the following format:
000-099 - Dispatch and base radios 100-299 - Law enforcement 300-499 - Fire and emergency medical services 500-999 - Public works and used as needed