A: ABE ALLENTOWN, PA ABQ ALBUQUERQUE,NM ABI ABILENE, TX ACT WACO, TX ALB ALBANY, NY AMA AMARILLO, TX ANC ANCHORAGE, AK ATL ATLANTA, GA ATW APPLETON, WI AUS AUSTIN, TX AVP WILKES BARRE, PA AZO KALAMAZOO, MI B: BDL HARTFORD, CT BFL BAKERSFIELD, CA BGR BANGOR, ME BHM BIRMINGHAM,AL BIL BILLINGS, MT BMI BLOOMINGTON, IL BNA NASHVILLE, TN BOI BOISE, ID BOS BOSTON, MA BPT BEAUMONT/PORT ARTHUR, TX BTR BATT