LeapFrog on X: "What's the date today? 10-4, good buddy! But why do we say "ten four" to mean "understood?" It's from old radio codes! 📻📻📻 #LeapFrog #DidYouKnow #LetsRecordMusicPlayer https://t.co/Kf7K1LzDHF" / X
5 Easy Ways to Respond to 10 4 - wikiHow
Pin by Emily Nissan GT-R on Law Enforcement | Police code, Coding, Police
Indiana State Police (IN) - The RadioReference Wiki
Police officer shirt - 10-4 coffee that - Funny ten code cop joke policeman tee | eBay