ZIP 96550 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. The evidence is weak: one source, or a split between sources. Confirm with the recipient.
Region
AP, Armed Forces PacificCovers the Pacific, including Japan and Korea.
Delivery group
Japan, Korea, Pacific islands and the Far EastUSPS groups ZIP prefixes 962–966 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 96550

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 96550 restricts

USPS lists 7 mailing restrictions for this ZIP, 3 of them bans on specific items. Restrictions are set per ZIP, so another ZIP in the same region can differ.

Can’t be sent

  • Securities, currency and precious metals(A)
  • Meat and animal by-products (bones, hides, feathers, wool samples)(H)
  • Fruits, vegetables, live animals and live plants(M)

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)

Size, weight and service

  • No Registered Mail(N)
  • No Priority Mail Express Military Service(V)

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 96550: A-B-H-M-N-U-V-Z1. What each code means.