Who is/was "311" before trunking? When I started hearing it, I thought it was the ID for Ballston Spa's dispatch center. Lately, however, I see those RIDs and hear that ID being spoken on the 9-1-1 and Sheriff talkgroups in communication with various police units.
A search of the FCC ULS turns up no callsigns (current or expired) that end in 311.
A search of the FCC ULS turns up no callsigns (current or expired) that end in 311.