J Huff on Twitter: "Site for police radio codes: https://t.co/fOyjHzYxEs (select state or region with dropdown) Helpful for #OSINT on realtime events when listening to a region on @Broadcastify https://t.co/2DmnHReTCz" / Twitter
Ellis County (TX) - The RadioReference Wiki
Maryland police 10-codes for our area: - Cumberland on Patrol | Facebook