I have to agree with that 100% - although i was in ems, not fire in Westchester. However, during college i was in the FD/EMS in Tompkins Co NY - (early 80's), and even back then they had a system that made sense... where x or xx is the department # in alphabetical order... Engines were xx01, xx02, etc Ladders xx31... Rescue/utility xx41... Ambulance/EMS xx51 Chiefs/officers xx61 Chiefs/officers portables xx71 On duty/On call xx81... etc. - so if you heard a number you know exactly who/where/what you were talking to. ( OK - i don't remember what, if anything had the 10s 20s and 90's but this was 25 years ago.... lol) Oh - and everything fire and ems related was central dispatched by the county - 1 psap for fire/ems Dave