ScanBaltimore

First digit is district, second character is shift, third is sector and fourth is post. 6A32 would be a Northwest midnight unit in sector 3 on post 2 and 2C23 would be Southeast evening unit in sector 2 on post 3.

Lieutenants are 09 and Sergeants are 10, 20, etc., 91 and 92 are wagons and 99 is desk. So, 2C23's Sergeant would be 2C20 and his Lieutenant 2C09. If a unit gets a warrant confirmation from 2C99, then 2C91 or 2C92 would do the transport. 200 would be the district Major.

Flex and District Ops units are numbered differently. They are numbered for each district as *1** and *2**. Northwest be something like 6117 or 6234. Again any number ending in 0 is a Sergeant and 09 a Lieutenant. Any numbers over *3** are Citywide units.

58xx is Crime Lab
84xx is Accident Investigation Unit
64xx is Homicide
65xx is Violent Crimes Task Force
76xx-78xx is Tactical (including Marine, EVU and Canine)
7620-7625 is Foxtrot
7811-7812 is EVU
93xx is Parking Control
95xx is Traffic Enforcement Section (civilians that direct traffic and write tickets)
96xx is Baltimore City Sheriff
97xx is Housing Authority of Baltimore City Police
98xx is Baltimore City Sheriff
99xx is Baltimore City Public Schools Police