Email
us your Radio Codes & Signals or Fleet code / Talk Group Updates
Scanner
Frequencies & Codes
Subscribe to National Communications Magazine America's #1 Scanning/CB/Two-Way Magazine
Instructions: You have reached one of the most scanner friendly sites on line. Best of all the use of this site is free of charge. On the Nat-Com Radio Codes & Signal Site you can: Look radio codes and signals used by any number of agencies within a state.
Download any file through your browser's file save button.
Send files to friends.
Submit new information to share.
This file contains many of the radio codes & signals you hear used on the air. The information has been gleaned from many sources and since the only way to get this information is to listen and record what the radio codes and signals are encountered, there may be some differences in what is presented here from what you might believe the code or signals is used for. The data is arranged alphabetically by agency name. You can help in this effort. You can simply click on the link above to submit your information, or you can mail your information to us at: National Communications P.O. Box 291918 Kettering, OH 45429 This information is presented as a research tool courtesy of National Communications Magazine. Remember the site is free for you to use, but then there is really nothing that is free of charge. The magazine supports the web site, so please consider supporting the magazine with a subscription. With an annual subscription of $21.00 you will also receive access to our on-line 4 Million frequency searchable databases. We also have a site dedicated to Trunked Frequencies which is also available to you at no charge. You can look up frequencies by city/state You can look up frequencies by frequency/state You can print up the list of frequencies You can email a search to yourself to use in Excel or Scancat============================================================================= CHATTANOOGA CITY & HAMILTON COUNTY POLICE CODES: 400 Block City 444 Wrecker 401 Eat 445 Indecent Exposure 402 Nature Call 446 Burglary Alarm 403 Call Sergeant 447 Traffic Tie-Up 404 Traffic Violator 448 Suicide Or Attempted Suicide 405 Call Police Clerk 449 D.O.A 406 See A Complainant 450 Call Home 407 Out Of Service 451 Warrant Service 408 In Service 452 Traffic Patrol 409 Purse Snatched 453 Car Or Truck Entered 410 Shoplifter 454 Theft Report 411 Drunk 455 Demonstration 412 Fight 456 Riot 413 Wreck 457 Abandoned Children 414 Prowler 458 Lights (traffic/street) 415 Juveniles 459 Car Broke Down 416 Shooting 460 Repairs (city shop/elsewhere) 417 Cutting 461 Service (wash/lube rack) 418 See A Party 462 Radio Shop (radio repair) 419 Burglary In Progress 463 Break 420 Ambulance 464 Court (city or criminal) 421 Fire 465 Step Location 422 Hold Up 466 Investigate Person Down 423 Public Service 467 Door Open 424 House Burglary 468 Assist A Citizen 425 Transport Prisoner 469 Property Damage 426 Business Burglary 470 Deceptive Practice 427 Sex Crime 471 Assault 428 Auto Registration 472 School 429 Location 473 Found Property 430 Disorder 474 Accidental Injury 431 Improperly Parked Auto 475 Arson Or Attempt 432 Abandoned 476 Lost Property 433 Suspicious Person 477 Run Breathalyzer Test 434 Missing Person 478 Child Abuse 435 Flat Tire 479 Request Back-Up Unit (not a 443) 436 Escort 480 No Units Available At This Time 437 Working Traffic 481 Stand By To Copy 438 Stolen Auto 482 Obstruction In Roadway 439 Stolen Motorcycle/Bike 483 Outstanding Warrants (felony/ 440 Robbery From Person misdemeanor) 441 Lunacy 484 Special Weapon Unit Requested 442 Bomb Threat 485 Overdose 443 Officer In Trouble 499 Arrive At Scene ============================================================================= KNOXVILLE POLICE & KNOX COUNTY SHERIFF CODES: 10-11 Temp Out Of Service 10-60 Attempted Suicide 10-14 Escort 10-61 Suicide 10-15 Prisoner In Custody 10-62 Murder 10-16 Pick Up Prisoner At ..... 10-63 Kidnapping 10-17 Serving Warrant At.... 10-64 Rape 10-19 Return To Station 10-65 Attempted Rape 10-21 Call Station By Phone 10-66 Business Burglary 10-22 Disregard/Cancelled 10-67 Residential Burglary 10-23 Escape Prisoner 10-68 Vehicle Burglary 10-24 Traffic Problem 10-70 Shoplifting 10-25 Officer Initiated/Traffic Stop 10-71 Forgery/Fraud 10-27 Vandalism 10-72 Riot 10-32 Need Breath/D.W.I Test 10-73 Roadblock 10-35 Confidential Info 10-74 Lost/Found Property 10-38 Sick Person 10-75 Deliver A Message To.... 10-39 Injured Person 10-76 Do You Have Traffic For Me? 10-40 Hostage Situation 10-79 Disaster/Tornado/Plane Crash 10-41 Missing Person 10-80 Cutting Scrape 10-42 Criminal Trespassing 10-81 Shooting Scrape 10-43 Investigation 10-82 Disorderly Conduct 10-44 Stolen Vehicle/Boat/Motorcycle 10-83 Domestic Trouble 10-45 Wreck/Property Damage 10-84 Juvenile Problem 10-46 Wreck/With Injuries 10-85 Disturbance 10-47 Send Ambulance 10-86 Fire 10-48 Send Wrecker 10-87 Mental Person 10-49 Drunk Driver 10-89 Indecent Exposure 10-50 No Traffic Here 10-90 Suspicious Person 10-51 Strong Armed Robbery 10-91 Dead Person 10-52 Armed Robbery 10-93 Molester 10-53 Hit & Run 10-94 Assault 10-55 Larceny 10-95 Firecrackers 10-56 Prowler 10-96 Property Check 10-57 Alarm 10-97 Arrived On The Scene 10-58 Public Drunk 10-98 Assignment Completed 10-59 Fight 10-99 Bomb Threat CODES: Code A Report Submitted Code N Unfounded Code B Unable To Locate Complainant Code O Officer Needs Assist Code C Unable To Locate Address Code P Handled By Another Agency Code D Unable To Locate Suspect Code Q In Service Code E No Police Action Code R Message Delivered Code F Problem Solved Code S Left A Note Code G Advised Code T Items Recovered Code H Vehicle Checked O.K Code U Towed Code I Person Checked O.K Code V Marked Items Code J Property Checked O.K Code W Transport To Other Agency Code K Verbal Warning Code Y Sign The Books Code L Citation Issued Code Z Cancelled Code M Arrest Made ============================================================================= METRO NASHVILLE/DAVIDSON COUNTY POLICE DEPARTMENT CODES & SIGNALS: SIGNALS: 1 Implement contingency operation 9 Disregard last transmission 2 Invisible deployment requested 10 Rush - quick action desired 3 Confidential radio Transmission 11 Switch to secondary channel 4 Report to station/office 12 Switch to countywide channel 5 Advise if personnel OK 13 Switch to assigned channel 6 Call by telephone (specify) 14 Switch to records channel 7 All units stay clear of area 15 Switch to C.B. transceiver 8 Meet a party 16 Stop all radio transmissions TEN CODES: 10-1 Receiving poorly 10-64 Corpse or DOA 10-2 Receiving well 10-65 Dangerous/injured animal 10-3 Administrative/spec. assign. 10-66 Bomb scare 10-4 Acknowledgement 10-67 Rape 10-7 Out of service 10-68 Kidnapping 10-8 In service 10-70 Burglary (residential) 10-9 Repeat transmission 10-71 Burglary (non-residential) 10-10 Out of service, subj to call 10-72 Item/vehicle is stolen 10-13 Consider suspects dangerous 10-73 Hazardous liquid/gas leak 10-16 Transport prisoner/subject 10-75 Missing person 10-20 What is your location 10-77 Gang activity 10-28 Check vehicle registration 10-78 Criminal/vice activity 10-30 Check for warrants/record 10-79 Occult activity 10-32 DUJI test required 10-80 Child abuse 10-35 Mentally ill person 10-85 Prisoner escape 10-37 Send back-up 10-87 Safety hazard 10-40 Suspicious person 10-88 Investigate 911 hang-up 10-41 Domestic disturbance 10-89 Drowning 10-42 Intoxicated person 10-92 Fixed post - traffic 10-43 Want offiver for assitance 10-93 Traffic violation 10-44 Disorderly person 10-95 Meal break 10-45 Accident, property damage 10-96 Tavern check 10-46 Accident, personal injury 10-97 Arrived on the scene 10-48 Request wrecker 10-98 Assignment complete 10-49 Vehicle blocking alley/drive 10-99 Give complaint number 10-50 Theft (specify type) 10-51 Cutting or stabbing 1000 CODES: 10-52 Shooting Code 1000 Bank robbery 10-53 Holdup or robbery Code 2000 Plane crash 10-54 Person with a weapon Code 3000 Barricaded suspect/specify if 10-57 Fight/assault with hostage 10-58 Prowler Code 4000 Sniper 10-59 Exposure of person Code 5000 Personnel is serious situation 10-60 Blood run Code 6000 Riot/disorderly crowd 10-61 Fire call Code 7000 Train derailment 10-62 Person screaming Code 8000 Explosion 10-63 Suicidal person DISPOSITION CODES: 1 M.P.D. report completed 2 Arrest - custodial/citation 3 Citation - traffic 4 Assisted citizen 5 Gone on arrival 6 Assited other unit 7 Advisory/notice form given 8 Advised in civil case 9 Suspect warned 10 No response 11 Disregard Signal 9 12 Location/building secure 13 False call 14 Assistance refused INCIDENCE DISPOSITION CODES: A Alarm B Bank/security escort C Complainant/victim D Domestic disturbance E Emergency escort F Felony J Juvenile M Misdemeanor P Psychological evaluation R Traffic radar used S Suspect/subject T Traffic/directed traffic V Vehicle assistance W Warrant assistnace escort CALLS FOR SERVICE RESPONSE PRIORITY CODES: A Alarm P In progress R Report CLASSIFICATION IDENTIFIER CODES: J Juvenile E Emergency V Vehicle C Cancellation M Medical problem ============================================================================= TENNESSEE STATEWIDE AMBULANCE RADIO CODES: Cardio-Pulmonary 1 Airway Obstruction 2 Respiratory Arrest 3 Cardiac Arrest Trauma: 6 Shock 20 Chest Injury 7 Hemorrhage, Uncontrollable 21 Back Injury 8 Internal Injuries 22 Abdominal Injury 9 Evisceration 23 Pelvic Injury 10 Wound, Gunshot 24 Genitalia Injury 11 Wound, Stab 25 Genitalia Injury 12 Multiple Fractures 26 Arm Amputation 13 Cuts, Head 27 Arm Injury 14 Cuts, Body 28 Arm Broken 15 Cuts, Extremity 29 Leg Amputation 16 Head Injures 30 Leg Injury 17 Eye Injury 31 Leg Fracture 18 Neck Injury 32 Hemorrhage Controlled 19 Shoulder Injury 33 Bruises And Abrasions Medical & Environmental Emergency: 36 Anaphhylactic Shock 48 Mental Disturbance 37 Heart Attack 49 Nervous Condition 38 Poisoning Ingested 50 Pneumonia 39 Poisoning Inhaled 51 Stoke 40 Drug Overdose 52 Asthma 41 Burn, Chemical 53 Appendicitis 42 Burn, Radiation 54 Insect Bite 43 Burn, Thermal 55 Snake Bite 44 Convulsions 56 OB (hemorrhage/miscarriage) 45 Epileptic Seizures 57 OB (labor) 46 Diabetic 58 OB (delivered 47 Kidney Problem Patient Description: 61 Unconscious 69 Intoxicated (alcohol) 62 Semi-Conscious 70 Unruly 63 Chest Pain 71 Drowning 64 Dyspnea 72 Possible Organ Donor 65 Emphysema 73 Possible Death On Arrival 66 Abdominal Pain 74 Rape 67 Sick 75 Suicide 68 Intoxicated (drug) Care Codes: 76 CPR In Use 79 Check Up 77 IV In Use 80 Convalescent 78 Oxygen In Use ============================================================================= TENNESSEE STATEWIDE POLICE CODES: Signals: 1 Call Your Post 7 Emergency--Serious Situation 2 Call Headquarters 8 Meet 3 Change Channel, Traffic From__ 9 Disregard 4 Report To Headquarters 10 Rush--Quick Action Desired 5 Report To Your Post 11 Info Requested Confidential 6 Call ____ By Telephone 12 Reply Via Phone, TWX, CW, Etc. 10-Codes: 10-01 Receiving Poorly 10-49 Driving While Drunk 10-02 Receiving Well 10-50 No Traffic Here 10-03 Stop Transmitting 10-51 Driving Without License 10-04 Acknowledgement 10-52 Armed Robbery 10-05 Relay 10-53 Hit & Run 10-06 Busy 10-54 Arrest & Hold For 10-07 Out Of Service 10-55 Kidnapping 10-08 In Service 10-56 Rape 10-09 Repeat 10-57 Overweight Truck 10-10 Out Of Service, Subject Call 10-58 Public Drunk 10-11 Dispatching Too Rapidly 10-59 Lunacy 10-12 Officials/Vistors Present 10-60 Missing Person 10-13 Advise Weather Conditions 10-61 Suspicious Person 10-14 Convoy Or Escort 10-64 Net Free 10-15 Prisoner In Custody 10-65 Clear For Message Broadcast 10-16 Transporting Subject 10-66 Bomb Threat 10-17 Advise Road Conditions 10-67 Hostage Situation 10-18 Complete Assignment ASAP 10-68 Barricaded Subject 10-19 Advise Traffic Conditons 10-69 Weapon Involved 10-20 Location 10-70 DOA 10-21 Call This Station By Tele 10-71 Demonstration 10-22 Eating 10-72 Riot 10-23 Nature Call 10-73 Roadblock 10-24 Trouble At Station 10-74 Blood Run 10-25 Do You Have Contact With___? 10-75 Plane Crash 10-26 Permission To Leave Assignment 10-76 Do You Have Traffic For? 10-27 Check Driver's License 10-77 Radio Repair At _____ 10-28 Check Vehicle Registration 10-78 Car Repairs At _____ 10-29 Check Stolen/Wanted 10-79 Car Wash At ______ 10-30 Against Rules 10-80 Stationery Observation 10-31 Hit 10-29, Safe To Copy? 10-81 Stopping Violator 10-32 Breathalyzer 10-82 Stopping Suspicious Vehicle 10-33 Clear For Emergency Traffic 10-83 Assit(ing) Motorist 10-34 Officer In Trouble 10-84 Assit(ing) Citizen 10-35 Confidential Information 10-86 Abandoned Vehicle 10-37 Operator On Duty 10-87 Improperly Parked Vehicle 10-38 Request Backup, Not 10-34 10-88 Obstructing Roadway 10-39 Request TBI Agent 10-89 Disable Vehicle 10-40 No Units Available 10-90 Fire Apparatus 10-41 Civil Defense Test 10-92 Rescue Unit 10-42 Backup Sheriff Or P.D 10-93 Helecopter 10-43 Want Officer--Investigation 10-94 Tactical Unit 10-44 Stolen Vehicle 10-95 K9 Unit 10-45 Auto Wreck--Property Damage 10-96 Radio Test 10-46 Auto Wreck--Injury 10-97 Arrived At Scene 10-47 Send Ambulance 10-98 Finished With Last Assignment 10-48 Send Wrecker =============================================================================