LAPD Radio Codes*
*As commonly heard on Adam-12; not an exhaustive nor necessarily current list.
| Code | English |
| 1 | Acknowledge call/Respond Over Radio |
| 2 | Routine call, No Lights or Siren |
| 2-HIGH | Priority Call, No Lights or Siren |
| 3 | Emergency Call, Lights and Siren |
| 4 | No Further Assistance Needed |
| 4-ADAM | No Further Assistance Needed at Scene, Suspect Still In Vicinity |
| 5 | Stakeout - All Other Units Avoid Vicinity |
| 6 | Out of Car on Investigation |
| 6-ADAM | Out of Car on Investigation, Requires Assistance |
| 6-CHARLES | In Response to Request for Information on Suspect |
| 6-GEORGE | In Response to Gang Activity |
| 6-MARY | Militant Activity |
| 6-ZEBRA | Arrived on scene, possible suspects in area (was later replaced by 6-Adam) |
| 7 | Meal Break |
| 8 | Fire Alarm |
| 8-ADAM | Working Fire |
| 10 | Request to Clear Frequency for Crime Broadcast |
| 12 | False Alarm |
| 20 | Notify Media |
| 30 | Burglar Alarm |
| 37 | Vehicle is Reported Stolen |
| 99 | Emergency |
| 100 | In Position to Intercept |