Placer Countywide Interoperable Radio Network (CIRN) Radio User IDs
From The RadioReference Wiki
NOTE ABOUT PCSO RADIO ID's:
Placer County Sheriff (PCSO) deputies have assigned (take-home) cars. Their badge numbers do not correspond to their radio ID's when assigned to work a shift. They are assigned to Beat ID's; therefore you will see the same Active Radio ID's show up with different callsigns (for those who, like me, like to assign UID's in your scanner for verified Radio ID's, this system pretty much torpedoes that plan, unless you know WHO the deputy is assigned to the Radio ID, and make the UID his name).
Placer County Dispatch Consoles have a numbering sequence of 10000_ last number being 1-9 (each desk/console has an independent UID)
Ex. UID 100001- Console/Pod 1
201501 - PCSO Falcon 30
120010 200612 200717 201013