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Skip Navigation Links>Radio Amateur>Radio Shortwave>Ten Code - 10 Codes
10-00
  • Officer Down, All Patrols Respond
  • '(Ten-Double Zero)'
10-0
  • Caution
  • Death/Dead
  • Pursuit
  • Unit logging off (NZ Police)
10-1
  • Poor Reception
  • Officer Needs Help
  • Unable to Copy
  • Call your command (New York City)
  • Message to all units (NZ Police)
10-2
  • Good Reception
  • OK For Now, Continue With Status Checks
  • Return to your command (New York City)
  • Unit is en route to job (NZ Police)
10-3
  • Ok, No Further Status Checks Needed
  • Call your dispatcher {aka 'Central'} (New York City)
  • Hold all radio traffic, emergency on channel
10-4
  • Affirmative
  • Ok
  • Understood
10-5
  • Relay
  • Pick up an item
  • Repeat message (New York City)
10-6
  • Busy
  • Out At Call
  • Stand by (New York City)
  • Change channel to... (NZ Police)
10-7
  • Out of Service
  • Ending tour of Duty
  • Deceased
  • Not functional (as a vehicle)
  • (Ambulance) On Scene
  • Request Break
  • Proceeding to ___
  • Unit has arrived at job (NZ Police)
10-8
  • Back In Service
  • On Duty
  • Available for next Call
  • (Ambulance) In Service / En Route
  • Unit busy but available (NZ Police)
10-9
  • Repeat last message
  • Urgent message (NZ Police)
10-10
  • Fight In Progress
  • Out of service, off duty
  • Permission to go on or speak freely on a common channel (car to car transmission, rather than through dispatch)
  • Negative
  • Transmission completed
  • Welfare check
  • Other non-Criminal Event
  • On Break, Subject To Calls
  • Possible Crime {Shots fired, suspicious person etc.} (New York City)
  • Person with felony warrant (Michigan)
  • Officer requires immediate assistance (NZ Police)
10-11
  • Animal Problem
  • Road-side check
  • Talking too fast
  • Alarm call
  • Person who reported the alarm ("Who's the 10-11 on this?")
  • En route
  • Alarm, specify type (New York City)
  • ____ On Duty (Utah)
10-12
  • Standby
  • Visitors present
  • Disregard
  • Call in reports
  • At scene
  • Check revocation
  • Security Holding, usually inside a store (New York City)
10-13
  • Advise Weather/Road Conditions
  • Officer in need of assistance
  • Mental health patient transport
  • Officer needs immediate assistance (New York City)
  • Running late by ___ minutes (Public Transportation)
10-14
  • Suspicious Person/Report of Prowler
  • Convoy or escort
  • Check Plate, Vehicle is occupied and suspicious, check if stolen (New York City)
  • Back on time (Public Transportation)
  • Information (Utah)
10-15
  • Civil Disturbance
  • Prisoner/suspect in custody
  • Check if Vehicle Stolen - People in or out rolling/stationary vehicle.
  • Domestic disturbance
  • Check Plate, whether occupied or otherwise, check if stolen (New York City)
  • Message Delivered (Utah)
10-16
  • Domestic Disturbance
  • Make pickup at ___
  • Non-urgent business (lights and siren not necessary)
  • Vehicle Stolen
  • Prisoner
  • License Check reports stolen (New York City)
  • Reply To Message (Utah)
10-17
  • Meet Complainant
  • Pick up papers at ___
  • Urgent business (lights and siren)
  • Conduct Investigation
  • Vehicle Not Stolen
  • En Route
  • Medical Emergency
  • Writing Report
  • License Check reports not stolen (New York City)
10-18
  • Urgent
  • Complete assignment ASAP
  • Anything for us?
  • Intoxicated (as a noun or an adjective)
  • Livestock on Roadway
  • Warrant Check shows active warrants (New York City)
10-19
  • Return to ______
  • Returning from Scene
  • Return/En Route To Station
  • Warrant Check shows no active warrants (New York City)
  • In Contact (Utah)
10-20
  • Specify Location/My Location is ___/Location
  • Report of past robbery (New York City)
10-21
  • Please Call ___
  • Phone Call
  • Report of past burglary (New York City)
10-22
  • Disregard
  • Report to ___
  • Send blood technician
  • Report of past larceny, specify type (New York City)
10-23
  • Arrived at Location/On Scene
  • Stand by on this frequency
  • Status check
  • En route to call
  • Sex offense
  • Meet with officer
10-24
  • EMERGENCY BACK UP
  • Clear call/stop
  • Trouble at station
  • Unit not available
  • Direct traffic
  • Report of past assault (New York City)
  • Assignment Completed (Utah)
10-25
  • Report to ___
  • Please Contact ___
  • Officer Needs Help
  • Report of past child abuse (New York City)
10-26
  • Detaining Suspect (implying "Please expedite")
  • Check auto registration
  • ETA ___
  • Disregard last info
  • Phone residence
  • Call canceled
  • Message Received
10-27
  • Request Drivers License Check
  • Vehicle Registration Request
  • I am moving to channel ___
  • Motor Vehicle Accident
  • Traffic stop
  • Felony crimes as follows (the "10" portion being commonly unstated):
    • 27-1 Homicide
    • 27-2 Rape or sexual assault
    • 27-3 Armed robbery
    • 27-4 Aggravated battery
    • 27-5 Burglary (commercial or residential)
    • 27-6 Theft
    • 27-7 Auto theft
    • 27-8 Shooting
    • 27-9 Stabbing
10-28
  • Request Vehicle Registration Check
  • Driver's license request
  • Identify your station
  • Missing person
10-29
  • Request Arrests/Warrants Check
  • Time is up for contact
  • Stolen Vehicle
  • Other past crime, specify (New York City)
10-30
  • Unauthorized use of radio
  • Danger/caution
  • Special check at ___
  • Juvenile
  • Robbery in progress (New York City)
10-31
  • Crime in progress
  • In pursuit
  • Domestic disturbance
  • Check for local warrants
  • Suspicious person or situation
  • Burglary in progress (New York City)
  • Pick Up (Utah)
10-32
  • Person with gun
  • Fight in progress
  • Radio check
  • Check NCIC
  • DWI test
  • Medic down
  • Breathalyzer
  • Larceny in progress, specify type (New York City)
  • _____ Units Needed (Utah)
10-33
  • Emergency, all units stand by
  • Officer needs help / the life of the officer is in danger
  • Disturbance at ___
  • Emergency Traffic
  • Fire
  • Threat or confirmed sighting of a bomb/explosive device (New York City)
10-34
  • Riot
  • Frequency open (cancels 10-33)
  • Help needed
  • Trouble at jail
  • Correct time
  • Meet officer
  • Assault in progress (New York City)
  • Time Check (Utah)
  • Drunk Wet Himself (Vermont)
10-35
  • Major crime alert
  • Confidential information
  • Suspicious person
  • Record check returns Misdemeanor/Felony warrant
  • Child abuse in progress (New York City)
10-36
  • Correct time of day?
  • Confidential information
  • Safety/Security Check (Utah)
10-37
  • Suspicious vehicle
  • Identify yourself
  • Wrecker needed at ___
  • Shoplifter
  • Time of day?
  • Operator on Duty
10-38
  • Stopping suspicious vehicle
  • Traffic Stop
  • Hooker needed
  • Station report satisfactory
  • Road Block
  • Phone communications
  • Vandalism
10-39
  • Investigate suspicious vehicle
  • Run with lights & siren
  • Your message was delivered
  • Backing Up____
  • False alarm, premises were occupied
  • Contact officer
  • Disturbance
  • Resume previous assignment
  • Revert to prior status
  • Motorist Assist
10-40
  • Run silent (no lights & siren)
  • False alarm, no activity, premises appears secure
  • Please tune to channel ___
  • Expedite
  • Advise if available
  • Suspicious person
  • Dead animal
  • Mental patient
  • Fight
  • Meal Break
  • Shots fired
  • Out at station/office
  • Don't divulge location
10-41
  • Begin duty
  • Radio test
  • Intoxicated person
  • Debris in street
  • Switch to alternate channel
  • Neighbor trouble
  • Officer is out on a meal break
  • Female in Police Unit (Specifically someone of the opposite sex)
10-42
  • End duty
  • "Flush and Clean"
  • Traffic accident at ___
  • Malicious mischief
  • Request dispatch times
  • Home
  • Fatality
  • Call home
  • Traffic History Report
10-43
  • Information
  • Traffic jam at ___
  • Request criminal history
  • Pick up passenger
  • Armed robbery
  • Rescue call
  • Request officer
  • Drivers License Report
10-44
  • Permission to leave patrol
  • I have a message for you
  • Transmission received
  • Possible mental subject
  • Traffic accident (no injury)
  • Stolen (mostly vehicles)
  • Fatality
  • Suicide or attempt
  • Driver's license clear
  • Haz-Mat condition (New York City)
  • Warrant Check
10-45
  • Animal carcass
  • Pick up officer
  • Fatality
  • Drivers License/Warrant Check
  • Fire alarm
  • Fueling vehicle
  • All units in range please report
  • Traffic accident (injury)
  • Property damage/car accident (non-injury)
  • Unit on a traffic stop
  • Coffee Break
10-46
  • Motorist assist
  • Motor vehicle accident (MVA)
  • Wrecker
  • Car accident (injury)
10-47
  • Emergency road repair
  • Disorders and family trouble
  • Missing person
  • Drunk driver
  • Blood run
  • Paper Work
  • Request ambulance
  • Investigate Suspicious Vehicle (Utah)
10-48
  • Traffic control
  • Request criminal history
  • Did you copy?
  • Runaway juvenile
  • Use caution
  • Request wrecker
  • Ready to copy information
  • Blood alcohol report
  • Disturbing The Peace (Utah)
  • Interstate Warrant (NCIC Hit)
10-49
  • Traffic light out
  • EMERGENCY, clear air
  • En route to assignment
  • Any traffic/pending calls for this unit?
  • Warrant
  • Pedestrian on freeway
  • Serving warrant
  • Intoxicated/reckless driver
10-50
  • Officer Welfare Check
  • Traffic Stop
  • Accident Often referred to as a 10-50 PD (Property Damage), a 10-50 PI (Personal Injury), or (rarely) 10-50 F (Fire or Fatality)
  • No/negative
  • Break channel
  • Auto accident with property damage
  • Disorderly person/group (New York City)
10-51
  • Wrecker needed
  • Auto accident with injuries
  • Phone message
  • En route
  • Wandering gang, specify # of persons and direction
10-52
  • Ambulance needed
  • Accident with Injuries
  • Fatal auto accident
  • Message for assignment
  • Estimated Time of Arrival
  • Audible alarm
  • Dispute, specify if weapons, injuries (New York City)
10-53
  • Road blocked
  • Silent alarm
  • En route to office
  • Intoxicated/disorderly person
  • Officer is clear (from traffic stop/call for service)
  • Vehicle accident, specify if property involved or if injuries (New York City)
  • Dead on arrival (Salt Lake County Sheriff)
  • Traffic Control (Utah)
10-54
  • Negative
  • Animals on highway
  • Fatal Accident
  • Silent pursuit
  • Traffic stop, dangerous vehicle/location
  • Aided case {Injury, illness}
  • Traffic control (Salt Lake County Sheriff)
  • Change to Channel ____ (Utah)
10-55
  • Intoxicated driver or DWI
  • Security check
  • Ambulance call
  • Coroner requested
10-56
  • Intoxicated pedestrian
  • Intoxicated Driver
  • Warrant indicated
  • Arrived at scene
  • Change location
  • Traffic Problem (Salt Lake County Sheriff)
10-57
  • Hit & run accident
  • Intoxicated Person
  • Narcotics
  • Officer at pistol range
10-58
  • Direct traffic
  • Wrecker
  • DOA
  • Teleprinter message
  • Mental patient (violent)
  • Follow-Up (Salt Lake County Sheriff)
  • Airplane Crash (Utah)
10-59
  • Escort or convoy
  • Out of car checking violation
  • Ambulance
  • Bomb threat
  • Mental patient (non-violent)
  • Reckless Driver (Utah)
10-60
  • Squad in vicinity
  • Traffic stop
  • Subject negative
  • What is next message number?
  • Assist motorist
  • Major emergency (FDNY)
  • Canceled
  • Coffee break
  • Out Of Car On Violator At ___ (Utah)
10-61
  • Personnel in vicinity (Is the subject within earshot of your radio?)
  • Subject has record - not wanted
  • Stand by for CW traffic
  • Clear of traffic stop
  • Weather conditions?
  • Lunch break
  • Motor Inspection (Utah)
10-62
  • Reply to message
  • Subject possibly wanted
  • Unable to copy, use phone
  • Check for rising water
  • Logged on/off
  • Unit involved in a fleet
  • Unauthorized Listener (RCMP)
  • Stolen Vehicle (Salt Lake County Sheriff)
  • Request Permission Car To Car (Utah)
10-63
  • Prepare to copy
  • Subject positive
  • Make written copy
  • Net directed to ___
  • Need barricades
  • Dispatch Coroner/OMI
  • Send Tow Truck (RCMP)
  • Vehicle burglary (Salt Lake County Sheriff)
10-64
  • Local message
  • Subject wanted
  • Message for delivery
  • Net clear, resume normal traffic
  • Field investigator
  • Stopping motorist for moving violation
  • House/Business check
  • Send Ambulance (RCMP)
  • Vandalism (Utah)
10-65
  • Prepare to Copy
  • Net message assignment
  • Assist officer re: 10-64
  • Kidnapping
  • Juvenile Problem (Utah)
10-66
  • Check Officer's well-being (make sure everything is still ok)
  • Net message cancellation
  • Acknowledge page
  • Subject in observation category
  • Major Crime Alert (Utah)
10-67
  • Clear for next message
  • Subject is parolee
  • Prepare to copy
  • Person calling for help
  • All units comply
  • Net Message (Utah)
10-68
  • Dispatch message
  • Subject in charged category
  • Repeat dispatch
  • Switch channels
  • Runaway Juvenile (Utah)
10-69
  • Message received
  • Clear to copy transmission? (assumes unit is not alone or with subject)
  • Dangerous subject
  • Any calls holding for me?
  • Sniper
  • Missing Person (Utah)
10-70
  • Fire alarm
  • Fire
  • Wrecker
  • Fire follow-up
  • Prowler
  • Bomb
  • Net message
  • Chemical spill
  • In progress (fight, domestic, etc)
10-71
  • Advise nature of fire
  • Lewd or Sexual Act
  • Exploded Bomb
  • Ambulance)
10-72
  • Report progress on fire
  • Subject is in PROHIBITED category (ie-drive, possess firearms, etc)*
  • D.O.A.
  • Prisoner in custody
  • Suicide or Attempted Suicide
  • Fire Truck
  • Turkey Sandwich (New Jersey)
10-73
  • Smoke report
  • Mental patient
  • Abandoned vehicle
  • Rape (Utah)
10-74
  • Negative
  • No messages/pending business at this time
  • Theft
  • Civil Disturbance (Utah)
10-75
  • In contact with...
  • Juvenile Trouble
  • Domestic Problem (Utah)
10-76
  • En route to location
  • See complainant
10-77
  • ETA
  • Situation Under Control
  • Hijacking
  • Return To _____ (Utah)
10-78
  • Need assistance
  • Major accident with injury
  • Request wrecker
  • Back Up _____ (Utah)
10-79
  • Notify coroner
  • Bomb threat
  • Hit & run
  • Stolen bicycle (Salt Lake County Sheriff)
10-80
  • Pursuit in progress
  • Subject has been arrested
  • Bomb has exploded
  • Tower lights out
  • On assignment
  • Demonstration
  • Armed & Dangerous
10-81
  • Traffic stop initiated
  • Breathalyzer request
  • Burglar Alarm
  • Stop for interrogation
  • Officer ___ will be at your station
  • At vehicle maintenance
  • Civil disturbance/riot
  • Shoplifting (Salt Lake County Sheriff)
  • Breathalyzer Report (Utah)
10-82
  • Reserve lodging
  • Stop for interrogation/arrest
  • Traffic signal out
  • Cover assistance
  • Advise location and status
  • Prisoner In Custody (Utah)
10-83
  • Work/school crossing detail
  • Call station
  • Units stop transmitting
  • At radio shop
  • Officer in trouble
  • Confidential Information (Utah)
10-84
  • Advise ETA
  • Checking officer status
  • My telephone number is ___
  • Follow-up
  • Broken utility main
  • Special detail
  • Back-up officer
  • Visitors Present (Utah)
10-85
  • Arrival delay due to ___
  • Prepare to copy info
  • My address is ___
  • Patrol check of___
  • Loose livestock
  • Victims Condition (Utah)
 A. Fair B. Poor C. Critical
 D. Possible Fatality
 E. Obvious Fatality
10-86
  • Officer on-duty
  • Are there any messages/calls for me?
  • Utility line down
  • Crime in Progress (Utah)
10-87
  • Pickup or prisoner transfer
  • Pickup payroll check
  • Dead body
  • Meet with Officer
  • Respond with caution (Glen Cove, NY)
  • Abandoned Car (Utah)
10-88
  • Advise telephone
  • Station call
  • Special assignment
  • True alarm
  • Officer needs assistance
  • Man with a Gun (Utah)
10-89
  • Yes
  • Bomb threat
  • Send radio repair
  • Officer at academy
  • Welfare Check
10-90
  • Alarm Going Off
  • Bank Alarm
  • Radio repair to be at station
  • Officer at headquarters
  • False alarm
  • Officer in chief's office
  • Missing person
  • Lunch break
  • Welfare Check (most Oklahoma)
10-91
  • Pick up prisoner/suspect
  • Talk closer to the mic
  • Prepare your inspection
  • Vehicle fuel
  • Bank holdup alarm
  • Burglary (Utah)
10-92
  • Subject in custody*
  • Parking violation
  • Your signal is weak
  • Officer at court
  • Theft (Utah)
10-93
  • Blockage
  • Please check my frequency
  • Armed robbery (Salt Lake County Sheriff)
  • Unnecessary Use Of Radio (Utah)
10-94
  • Street racing
  • Change to channel
  • Contact Your Home (Utah)
10-95
  • Officer's Residence
  • Prisoner/suspect in custody
  • Transmit dead carrier for 5 seconds
  • Out At Home (Utah)
10-96
  • Mental patient
  • Detain prisoner/suspect
  • Request case number
10-97
  • Record Information

J1 Arrest Record Verified By Fingerprints J2 Could Be Armed/Dangerous J3 Has Assaulted Officers

  • Arrived at scene
  • Test signal
  • Possible wanted person in vehicle
  • Welfare check
  • Known offender
  • Officer at court
  • Dead body/Fatality
  • Shooting (Salt Lake County Sheriff)
10-98
  • Assignment complete
  • Prison/jail break
  • Criminal history indicated
  • Officer at juvenile court
  • Alarm (Glen Cove, NY)
  • Sheriff's Office check (Salt Lake County Sheriff)
10-99
  • Cardiac arrest/death
  • Warrants/stolen indicated- J1 Misdemeanor

J2 Felony J3 May Be Armed J4 Use Extreme Caution

  • Officer needs assistance/held hostage
  • Message Received(1-Person Unit)
  • Mission complete
  • What is my incident/report number
  • Unable to receive your signal
  • Traffic stop / violator
  • Need To Use The Restroom (urinate)
10-100
  • Misdemeanor Warrant
  • Dead body
  • Hot pursuit
  • Riot Conditions Exist
  • Controlled substance
  • Starting Security Check
  • Supervisor
  • (polite)Restroom break.
10-101
  • Ending Security Check
10-105
  • Dead on Arrival (DOA)
10-108
  • Officer down
  • Officer in danger
10-109
  • Suicide
10-110
  • Juvenile Disturbance
10-200
  • Police needed
  • Narcotics, drugs involved
  • Restroom break
10-1000
  • Felony Warrant
  • Dead Person
10-2000
  • Police required immediately
VK2NET, PO Box 445 Pendle Hill, NSW, 2145