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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/09123

09123

ZIP 09123 is military mail, not a town: APO AE, the Armed Forces Europe routing code, which covers Europe, the Middle East, Africa and Canada. APO is the Army and Air Force Post Office. Mail to it carries a unit or ship number instead of a street, at domestic US postage.

Type
Military (APO/FPO/DPO)
Time zone
Europe/Berlin
County
none
Metro area
none
Coordinates
49.9833, 6.6833
☼ Live from 09123 — APO AE

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Where 09123 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 09123
  • 🔢 Type 09123 into a pocket calculator and turn it upside down: EZIGO — not quite a word, sorry.
  • ➕ As a number, 9,123 = 3 × 3041. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10001110100011
  • 🏠 Its numerical neighbours: 09114 (APO AE, a military post office, 233 mi away) and 09126 (APO AE, a military post office, 0 mi away).
  • 🔄 Backwards, 09123 becomes 32190 — and that is a real ZIP code: Seville, FL, 4,619 miles away.
  • 👥 65 other ZIP codes are made of exactly the same digits (01923, 02139, 03291, 09132, 09213, 10923, …). The farthest-flung twin is 92103 in San Diego, CA, 5,770 miles away.
  • 🧭 Farther north than 99% of all ZIP codes, and farther east than 98%.
  • 🎯4,758 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 09123 and you would come out at 49.98°S, 173.32°W — 799 miles from Christchurch, New Zealand, the nearest big city to that spot.
  • ☀Longest day of the year: 16h 22m of daylight. Shortest: 8h 04m.
🌙 The sky over 09123 today
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Source: USGS.

Land area

ZIP codes near 09123

ZIPCityDistance
09126 APO AE, AE 0.0 mi
09132 APO AE, AE 7.0 mi
09156 APO AE, AE 7.0 mi
09214 APO AE, AE 21.4 mi
09262 APO AE, AE 33.5 mi
09305 APO AE, AE 33.9 mi
09034 APO AE, AE 38.5 mi
09059 APO AE, AE 52.3 mi
09080 APO AE, AE 52.7 mi
09111 APO AE, AE 53.6 mi

Find every ZIP code within 10 miles of 09123 →

Questions about this ZIP code

Where is ZIP code 09123?

ZIP 09123 is military mail, not a town: APO AE, the Armed Forces Europe routing code, which covers Europe, the Middle East, Africa and Canada. APO is the Army and Air Force Post Office. Mail to it carries a unit or ship number instead of a street, at domestic US postage.

What county is 09123 in?

09123 belongs to no county — military ZIP codes are mail routing codes, not places.

What ZIP codes are near 09123?

The closest are 09126 (0 mi), 09132 (7 mi), 09156 (7 mi), 09214 (21.4 mi) and 09262 (33.5 mi).

Is 09123 a PO Box ZIP code?

09123 is a military (apo/fpo/dpo) ZIP code. A USPS routing code for military mail, not a geographic area.

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Cite this page

zipcodes.pro. “09123 ZIP Code — APO AE, Armed Forces Europe (Military Mail).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/09123

Machine-readable version of these facts:

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