In texting and casual communication, "104" or "10-4" means "understood," "message received," or "okay".
10-4 is an affirmative signal: it means “OK.” The ten-codes are credited to Illinois State Police Communications Director Charles Hopper who created them between 1937–40 for use in radio communications among cops.
Many people online will use numbers to spell out Japanese (and occasionally English) words; it's called 語呂合わせ (goroawase). Here, the number 104 is an example that means "angel" because angel is 天使 (tenshi) in Japanese, so we have the number 10 (said as "ten" in English) and 4 (said as "shi" in Japanese).
The angel number 104 often indicates a fresh start headed your way. It turns out the angel number 104 presenting itself to you isn't so much the numeral after 103 as it is the individual numbers 1, 0, and 4, all coalescing to send you a spiritual message that new beginnings are on the horizon.
The 104 Medical Advice Helpline ensures timely healthcare support for all, eliminating barriers to access. Operated by Zenplus under the National Health Mission (NHM), the helpline provides 24/7 assistance across multiple states in India.
Ten-codes, especially "10-4" (meaning "understood") first reached public recognition in the mid- to late-1950s through the television series Highway Patrol, with Broderick Crawford. Ten-codes were adapted for use by CB radio enthusiasts.
The Origin and meaning of "10-4"
The number "4" stands for the specific code. When someone says "10-4" on a radio or during a conversation, they are essentially saying, "I understand" or "Message received." It is a way to quickly acknowledge that the information or instruction has been received and comprehended.
(WTAJ) — Have you ever heard someone, possibly a police officer, respond by saying “10-4?” What does that mean and where did it come from? Meaning acknowledgment or okay, “10-4” comes from the 10 Codes list that emergency personnel use to communicate with each other, commonly done over the radio.
10-4 is a common radio response used in the United States as a means of acknowledging an incoming transmission. It translates to "I received your message loud and clear" or "understood."
Ten-four (10-4) is an affirmative expression used in radio communications that translates to "message received," "you got it," or "OK." It is one of the ten-codes, which were created by Illinois State Police Communications Director Charles Hopper between 1937 and 1940.
How do you respond to 10-4? If you respond at all, respond to their other comments. 10-4 is just a signal to indicate that someone understands you. You don't need to respond to the 10-4, but if there's anything else accompanying the message, you can 100% respond to that.
10-4 was part of the 10 codes or ten signals a code system developed to simplify communication over the radio where clarity and brevity were key. 10-4 means “acknowledged” or “understood” a quick and efficient way for truck drivers to say they got the message without all the chatter that could clog the airwaves.
“Ten-four, good buddy” – This means “message received, friend.” “Lot Lizard” – a crude term for a female prostitute who solicits in parking lots at truck stops.
10-4 = Message received.
10-4: Ok, message received. 10-5: Relay message. 10-6: Busy, stand by. 10-7: Out of service.
10-2 Good Signal. 10-3 Stop Transmitting. 10-4 Affirmative.
You can say "I love you" in math through numerical codes like 143 (1 letter 'I', 4 letters 'Love', 3 letters 'You') or 520, by graphing equations that form the words, using programming code (like printf("I Love You");), or by referencing mathematical constants and concepts like the Golden Ratio (ϕ≈1.618phi is approximately equal to 1.618𝜙≈1.618) as symbols of universal beauty and love.
In English words, 104 is written as One Hundred Four. For example, if you purchased a cap worth Rs 104, then you can say, “I purchased a cap worth Rupees One Hundred Four”.
In most states 10-4 means message received but in NH 10-5 means message received. Every state/department has different meanings for the 10 codes. It's interesting because Maine uses 10-4.
But have you ever thought what it really means? The term has taken inspiration from CB radio slang, and it's just another way of saying “what's your location”? So, to all the truckers out there, what's your 20?
10-8 In service/available for assignment. 10-9 Repeat last transmission.
42. Yes, or OK. Four-Letter Word. Nobody wants to stop at the weigh station- that is why "OPEN" is considered a four-letter word in the trucking industry.
7 Adam 19 is their call sign. 7: unit 7 or 7ths division. Adam: officers go by Adam, in swat they are david. 19 is their shop number for if they go missing to locate them.