Apparatus

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sensors Mode-S transponder

A45B5D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N380AU · operated by WAYNE CEYNOWA

Hex
A45B5D
Octal
51055535
Decimal
10,771,293
Country
US
Tail
N380AU
No current signal · last broadcast 2h ago
Flights observed
24
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A45B5D.

Country allocation

The ICAO 24-bit address A45B5D falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N380AU - 24 2026-04-18

Recent flights last 24

DateFlightRouteTakeoffLandingDuration
2026-04-18 N380AU AUO → AUO Apr 18, 15:50 UTCApr 18, 16:50 UTC1h 0m
2026-04-18 N380AU - Apr 18, 12:05 UTCApr 18, 12:50 UTC45m
2026-04-18 N380AU AUO → AUO Apr 18, 11:40 UTCApr 18, 11:45 UTC5m
2026-04-17 N380AU - Apr 17, 13:20 UTCApr 17, 14:20 UTC1h 0m
2026-04-17 N380AU - Apr 17, 12:30 UTCApr 17, 13:15 UTC45m
2026-04-17 N380AU - Apr 17, 03:20 UTCApr 17, 04:00 UTC40m
2026-04-17 N380AU - Apr 17, 02:50 UTCApr 17, 03:15 UTC25m
2026-04-17 N380AU - Apr 17, 01:20 UTCApr 17, 02:15 UTC55m
2026-04-16 N380AU AUO → AUO Apr 16, 21:50 UTCApr 16, 22:50 UTC1h 0m
2026-04-16 N380AU AUO → AUO Apr 16, 19:45 UTCApr 16, 20:40 UTC55m
2026-04-16 N380AU - Apr 16, 17:15 UTCApr 16, 18:45 UTC1h 30m
2026-04-16 N380AU - Apr 16, 16:50 UTCApr 16, 17:10 UTC20m
2026-04-16 N380AU - Apr 16, 15:35 UTCApr 16, 15:40 UTC5m
2026-04-16 N380AU - Apr 16, 14:25 UTCApr 16, 15:10 UTC45m
2026-04-16 N380AU AUO → AUO Apr 16, 11:39 UTCApr 16, 12:49 UTC1h 10m
2026-04-16 N380AU - Apr 16, 03:34 UTCApr 16, 03:55 UTC20m
2026-04-16 N380AU - Apr 16, 00:45 UTCApr 16, 01:05 UTC20m
2026-04-15 N380AU - Apr 15, 23:35 UTCApr 15, 23:45 UTC10m
2026-04-15 N380AU - Apr 15, 22:45 UTCApr 15, 22:55 UTC10m
2026-04-15 N380AU AUO → AUO Apr 15, 19:50 UTCApr 15, 20:45 UTC55m
2026-04-15 N380AU AUO → AUO Apr 15, 17:40 UTCApr 15, 18:55 UTC1h 15m
2026-04-15 N380AU - Apr 15, 14:30 UTCApr 15, 14:45 UTC14m
2026-04-15 N380AU - Apr 15, 13:01 UTCApr 15, 13:10 UTC10m
2026-04-15 N380AU - Apr 15, 11:45 UTCApr 15, 12:55 UTC1h 10m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N380AU page for operator, model, and routing details .

Mode-S A45B5D frequently asked

What is Mode-S code A45B5D?
A45B5D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N380AU.
Where is Mode-S A45B5D registered?
Mode-S code A45B5D is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A45B5D broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A45B5D, octal 51055535, decimal 10,771,293.
What flights does A45B5D operate?
Mode-S A45B5D has broadcast 1 distinct callsign, including N380AU.