Please see below from Estes

Limited Limited
42 Albany, GA – ALB/42
70 Methuen, MA – MET/70
72 Bangor, ME – BME/72
81 Albany, NY – ANY/81
109 Mobile, AL – MOB/109
170 Portland, ME – POR/170
185 Rockingham, VT – RHM/185
188 Montpelier, VT – MTP/188
257 Grand Junction, CO – GRJ/257
504 Manchester, NH – MNH/504