Citizen Bands have adopted the “10-CODES” for standard questions and answers. These codes provide quick and easy communication, especially in noisy areas. Following are some of the more common codes and meanings:

CB Radio 10 Codes

Code	Meaning	Code	Meaning
10-1	Received poorly	10-2	Receiving well
10-3	Stop transmitting	10-4	Okay, message received
10-5	Relay message	10-6	Busy, stand by
10-7	Out of service, leaving now	10-8	In service, subject to call
10-9	Repeat message	10-10	Transmission completed, standing by
10-11	Talking too rapidly	10-12	Visitors present
10-13	Advise Weather/ Road conditions	10-16	Pick up at
10-17	Urgent business	10-18	Anything for us?
10-19	Nothing for you, return to base	10-20	My location is
10-21	Call by telephone	10-22	Report in person to
10-23	Stand by	10-24	Completed last assignment
10-25	Can you contact at	10-26	Disregard last transmission
10-27	I am moving to channel	10-28	Identify your station
10-29	Time is up for contact	10-30	Does not conform to FCC rules
10-32	I will give you a radio check	10-33	EMERGENCY TRAFFIC
10-34	Trouble at this station	10-35	Confidential information
10-36	Correct time is	10-37	Wrecker needed at
10-38	Ambulance needed at	10-39	Your message is delivered
10-41	Please turn to channel	10-42	Traffic accident at
10-43	Traffic at	10-44	I have a message for you
10-45	All units in range please respond	10-50	Break channel
10-60	What is the next message number	10-62	Unable to copy, use phone
10-63	Net directed to	10-64	Net clear
10-65	Awaiting your next message/assignment	10-67	All units comply
10-70	Fire at	10-71	Proceed with transmission in sequence
10-77	Negative contact	10-81	Reserve hotel room for
10-82	Reserve room for	10-84	My telephone number is
10-85	My address is	10-91	Talk closer to the microphone
10-93	Check my frequency on this channel	10-94	Please give me a long count
10-99	Mission completed, all units secure	10-200	Police needed at