A search on the built VIN numbers first 11 numbers and letters without the last six sequential digits would group each model number in a split second on a 2,500 built unit data base. Would take someone at Airstream less than five minutes to determine that information if they have not already done so for their marketing purposes.
WBCCI Life Member 5123, AIR 70341, 4CU, WD9EMC
TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell
2014 31' Classic model 30 twin beds, 50 amp service, 900 watt solar system, Centramatics, Tuson TPMS, disc brakes, 16" tires & wheels