I've lost track of this a bit, so I might be repeating myself.

453.250 CC:05 TG:1111

For the 456/536 my listing is this,

453.250000 LUDLOW POLICE DEPARTMENT Off FM DMR 5 Law Dispatch

If you entered it as a new listing, make sure that you have the Service Type correct.

I haven't been out that way for a couple of years, but as I remember it was working then. It was also confirmed on Scan New England earlier this month.

Gary