Ours are numbers based on locale and are your radio/shift ID/station.
Usually a block of 100 numbers denotes region for front line trucks. Extra ALS crews are always 500s, standbys are P900s, extra BLS crews are always 600s.
Here we are 730-782 but not every number is used. Usually vehicle and radio ID match if we are in our assigned unit. Prob a quarter of us in are spares. Radio ID never changes. I'm always 733 but today I'm in vehicle 822.
Usually a block of 100 numbers denotes region for front line trucks. Extra ALS crews are always 500s, standbys are P900s, extra BLS crews are always 600s.
Here we are 730-782 but not every number is used. Usually vehicle and radio ID match if we are in our assigned unit. Prob a quarter of us in are spares. Radio ID never changes. I'm always 733 but today I'm in vehicle 822.