There are 200 10-Codes in current usage, approximately 50 of these are used by the police, fire and other types of radio operators, while others have combined meanings depending on the service.

Below is a list of the most commonly used 10-Codes:
Any 10-Code signal can be made into a question by using it as a question.

10-1   Receiving Poorly                10-41  Please Tune To Channel

10-2   Receiving Well                  10-42  Traffic Accident At___________

10-3   Stop Transmitting               10-43  Traffic Tieup At______________

10-4   OK, Message Received            10-44  I Have A Message For You

10-5   Relay Message                   10-44  (Or__________________________)

10-6   Busy, Stand By                  10-45  All Units Within Range Report

10-7   Out of Service, Leaving Air     10-50  Break Channel_________________

10-8   In Service, Subject To Call     10-60  What Is Next Message Number?

10-9   Repeat Message                  10-62  Unable To Copy, Use Landline

10-10  Trnsmssn Cmpltd, Stndng By      10-63  Net Directed To_______________

10-11  Talking Too Rapidly             10-64  Net Clear

10-12  Visitors Present                10-65  Waitng for Nxt Msg or Assngmnt

10-13  Advise Wx and Road Conditions   10-67  All Units Comply

10-16  Make Pickup At_______________   10-70  Fire At_______________________

10-17  Urgent Business                 10-71  Prcd With Trnsmssn In Sequence

10-18  Anything For Us?                10-73  Speed Trap At_________________

10-19  Nothing For You, Rtrn To Base   10-75  You Are Causing Interference

10-20  My Location Is_______________   10-77  Negative Contact

10-21  Call By Landline                10-81  Reserve Hotel Room For________

10-22  Report In Person To__________   10-82  Reserve Room For______________

10-23  Stand By                        10-84  My Telephone Number Is________

10-24  Completed Last Assignment       10-85  My Address Is_________________

10-25  Can You Contact______________   10-89  Radio Repairman Needed At_____

10-26  Disregard Last Information      10-90  I Have TVI

10-27  I Am Moving To Channel_______   10-91  Talk Closer To Mike

10-28  Identify Your Station           10-92  Your Tx Is Out Of Adjustment

10-29  Time Is Up For Contact          10-93  Chck My Frqncy On Ths Chnnl

10-30  Does Not Conform To FCC Rules   10-94  Please Give Me A Long Count

10-32  I Will Give You A Radio Check   10-95  Tnx Dead Carrier For 5 Seconds

10-33  EMRGNCY TRFFC AT THIS STATION   10-99  Mssn Cmpltd, All Units Secure

10-34  Trbl At Ths Sttn, Help Needed   10-100 5-Min. Brk, Commonly RestRoom

10-35  Confidential Information        10-200 Police Needed At______________

10-36  Correct Time Is______________   

10-37  Wrecker Needed At____________

10-38  Ambulance Needed At__________

10-39  Your Message Delivered