| City: | APO, Armed Forces Pacific |
| Timezone: | --%> |
| Local Time: | 2:33:36 AM |
| Population: | No Population Data |
| Area Code: | -- |
| Classification: | Military Only |
| Quick Link: |
APO AP 96550 serves the Naval Communication Station Harold E. Holt near Exmouth, Western Australia.
This joint U.S.-Australian facility supports submarine communications and space surveillance operations.
The station is named after Australian Prime Minister Harold Holt and operates under the ANZUS alliance framework.
Mail routes through San Francisco with typical delivery times of 14-21 days to Australia.

At the Gary Sinise Foundation, our mission is to serve our nation by honoring our defenders, veterans, first responders, their families, and those in need. Among its programs is the construction of specially adapted smart homes for severely wounded veterans that are provided mortgage-free.
1-800-273-8255
A simple act of kindness can help someone feel less alone. Your actions could help save a life. #BeThere
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Call 1-877-476-7734
24/7 anonymous phone, chat and referral service using a 'Marine to Marine' approach.
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Call 1-800-959-TAPS (8277)
Whether you are in emotional crisis, need to connect with TAPS resources and programs, or just want to remind yourself that you are a part of a loving, supportive family.
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Since 9/11, we have been helping America's heroes by providing mortgage-free homes to Gold Star and fallen first responder families with young children and specially-adapted smart homes for injured veterans and first responders.
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Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.