trucker radio codes

10-Codes have been in use since the 1930s. They were originally developed as a way for police communicate over early radios, which needed time to charge to send a message. Additionally, early radio transmissions were choppy.  The 10-Codes were created as short messages, making it easier for the radios to send the message, and easier for the receiver to understand.

When truckers began using CB radios, they experienced the same issues as early police departments. So they adopted the 10-Code communication, modifying it slightly.


10-4 Good Buddy

It was in 1975 when C.W. McCall’s song Convoy was released, bringing the trucker 10-Code, and in particular “10-4“, into popular culture. The release of the 1978 film Convoy solidified the 10-Code into the cultural lexicon.

There are over 200 10-Codes. Below are some of the most popular ones used by truckers today.


Trucker Radio Codes

10-1 Receiving badly
10-2 Receiving good
10-3 Stop Transmitting
10-4 Ok, Affirmative
10-5 Pass on the Message
10-6 Busy
10-7 Out of service
10-8 In Service
10-9 Repeat the information
10-10 Transmission Completed (a CB operator will no longer broadcasting, but will listen the conversation)
10-11 Talking too fast
10-12 Visitor is present
10-13 Advise for the road conditions or the road and the weather
10-14 Convoy detail
10-16 Make Pickup at…
10-17 Urgent Business
10-18 Something for us yet?
10-19 Return to base now, there is nothing for you
10-20 Commonly used just as 20 and it means What’s your Location or My location is…
10-21 Contact me by telephone
10-22 Report in Person to…
10-23 Standby
10-24 Last assignment is completed
10-25 Can you communicate
10-26 Ignore/cancel the last Information
10-27 I am proceeding to Channel … (You are using this code when you want talk alone not on channel 20)
10-28 Point your station
10-29 It is time for contact
10-30 Does not conform to FCC rules and regulations
10-32 I’ll give you a radio check
10-33 Unfortunate incident on the road, need help
10-34 Trouble at this station (need of help)
10-35 Sensitive Information
10-36 Request for correct time
10-38 Need of ambulance at swift yard
10-39 Your message delivered
10-41 Please Choose the channel …
10-42 Traffic accident at …
10-43 Traffic jam at …
10-44 I have a news for you
10-45 All units in the area please report
10-50 A break Channel
10-65 I am waiting your next assignment
10-67 All units to comply
10-70 There is a fire at Truck Stop
10-73 There is Speed Trap at
10-75 Causing interference
10-77 Negative Contact
10-84 My telephone number is …
10-85 My address is …
10-91 Talk closer to the Microphone
10-92 Your transmitter is out of adjustment
10-93 Check my channel frequency on …
10-94 Please give me a long count
10-95 Transmit dead carrier for 5 sec.
10-99 Unit is secure
10-100 Break for bathroom
10-200 Need of police