Regional Offices
- Alaskan (AK)
- Central (IA, KS, MO, NE)
- Eastern (DC, DE, MD, NJ, NY, PA, VA, WV)
- Beckley ADO (WV)
- Harrisburg ADO (DE, NJ, PA)
- New York ADO (NY)
- Washington ADO (DC, MD, VA)
- Great Lakes (IL, IN, MI, MN, ND, OH, SD, WI)
- Bismarck ADO (ND, SD)
- Chicago ADO (IL, IN)
- Detroit ADO (MI, OH)
- Minneapolis ADO ((MN, WI)
- New England (CT, ME, MA, NH, RI, VT)
- Northwest Mountain (CO, ID, MT, OR, UT, WA, WY)
- Denver ADO (CO, UT, WY)
- Helena ADO (MT)
- Seattle ADO (ID, OR, WA)
- Southern (AL, FL, GA, KY, MS, NC, PR, SC, TN, VI)
- Atlanta ADO (GA, NC, SC)
- Jackson ADO (AL, MS)
- Memphis ADO (KY, TN)
- Orlando ADO (FL, PR, VI)
- Southwest (AR, LA, NM, OK, TX)
- Arkansas/Oklahoma ADO
- Louisiana/New Mexico ADO
- Texas ADO
- Western-Pacific (AZ, CA, HI, NV, GU, AS, MH)
- Honolulu ADO (HI, GU, AS, MH)
- Los Angeles ADO (AZ, Southern CA)
- San Francisco ADO (Northern CA, NV)
- Master Address List for Regional Divisions and Airport District Offices (PDF) (3/28/2008)