ZIP 09403 at a glance

USPS status
ActiveOn USPS’s APO/FPO/DPO table as of October 1, 2026.
Post office
APOArmy Post Office, used by Army and Air Force units. USPS lists it as APO AE 09403 in Postal Bulletin 22680 (Jul 2025).
Region
AE, Armed Forces EuropeCovers Europe, the Middle East, Africa and Canada.
Delivery group
Europe and AtlanticUSPS groups ZIP prefixes 090–092 and 094–099 together for delivery-time estimates.
Exact location
Not publishedUSPS and the Department of Defense don’t disclose which base, ship or embassy a ZIP serves. That protects the people there. If you need to know, ask the recipient.

How to write an address for 09403

Use the recipient’s own unit and box. The last line is the only part this ZIP decides.

Don’t add a base, city or country. If a form asks for a country, choose United States.

What ZIP 09403 restricts

USPS lists 10 mailing restrictions for this ZIP, 8 of them bans on specific items. Restrictions are set per ZIP, so another ZIP in the same region can differ.

Can’t be sent

  • Cigarettes and all other tobacco products(C)
  • Obscene or horror material (prints, films, comics and the like)(C1)
  • E-cigarettes, vapes, e-liquids and their parts(C2)
  • Firearms, except to or from official U.S. agencies(F)
  • Replica weapons, inert explosives and weapon parts(F3)
  • Fruits, vegetables, live animals and live plants(M)
  • Alcoholic beverages(R)
  • Synthetic cannabinoids (K2, Spice)(S)

Paperwork and approvals

  • Customs form PS 2976 or 2976-A for anything 16 oz or heavier, and for any merchandise at any weight. Priority Mail Express Military Service needs PS 2976-B.(B)

Box R and Box C mail

  • Box R (retirees): 16 oz max, plus up to a 90-day supply of TRICARE medications(U)

USPS codes for 09403: B-C-C1-C2-F-F3-M-R-S-U-Z1. What each code means.