- Alaskan (AK) [25]
- Central (IA, KS, MO, NE) [14]
- Eastern (DC, DE, MD, NJ, NY, PA, VA, WV) [2]
- Harrisburg ADO (DE, NJ, PA) [3]
- New York ADO (NY) [2]
- Washington ADO (DC, MD, VA) [4]
- Beckley AFO (WV) [5]
- Great Lakes (IL, IN, MI, MN, ND, OH, SD, WI) [10]
- Chicago ADO (IL, IN, WI) [10]
- Detroit ADO (MI, OH) [11]
- Dakota / Minnesota ADO (MN,ND,SD) [12, 13]
- New England (CT, ME, MA, NH, RI, VT) [1]
- Northwest Mountain (CO, ID, MT, OR, UT, WA, WY) [18]
- Denver ADO (CO, UT, WY) [20]
- Helena ADO (ID, MT) [19]
- Seattle ADO (OR, WA) [18]
- Southern (AL, FL, GA, KY, MS, NC, PR, SC, TN, VI) [6]
- Atlanta ADO (GA, SC, PR, VI) [6]
- Jackson ADO (AL, MS) [8]
- Memphis ADO (KY, NC, TN) [7]
- Orlando ADO (FL) [9]
- Southwest (AR, LA, NM, OK, TX) [15]
- Arkansas/Oklahoma ADO [16]
- Louisiana/New Mexico ADO [17]
- Texas ADO [15]
- Western-Pacific (AZ, CA, HI, NV, GU, AS, MH) [21]
- Honolulu ADO (HI, GU, AS, MH) [24]
- Los Angeles ADO (Southern CA) [21]
- San Francisco ADO (Northern CA) [22]
- Phoenix ADO (AZ, NV) [23]
- California Counties by Airports District Office
Last updated: Friday, April 07, 2023