Apparatus

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sensors Mode-S transponder

AA4C64

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N76278 · CESSNA 120 · operated by YEAZEL MATTHEW A, DENISON MILES C

Hex
AA4C64
Octal
52446144
Decimal
11,160,676
Country
US
Tail
N76278
Type
C120
No current signal · last broadcast 2d ago
Flights observed
108
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S AA4C64.

Country allocation

The ICAO 24-bit address AA4C64 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
N76278 - 108 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 N76278 - Jul 16, 00:50 UTCJul 16, 01:10 UTC20m
2026-07-15 N76278 - Jul 15, 16:15 UTCJul 15, 16:35 UTC20m
2026-07-15 N76278 - Jul 15, 00:10 UTCJul 15, 00:25 UTC15m
2026-07-14 N76278 - Jul 14, 17:50 UTCJul 14, 18:05 UTC15m
2026-07-14 N76278 - Jul 14, 00:40 UTCJul 14, 00:55 UTC15m
2026-07-13 N76278 - Jul 13, 14:25 UTCJul 13, 14:45 UTC20m
2026-07-10 N76278 BFI → TIW Jul 10, 23:35 UTCJul 10, 23:50 UTC15m
2026-07-10 N76278 - Jul 10, 15:05 UTCJul 10, 16:05 UTC1h 0m
2026-07-09 N76278 - Jul 9, 00:55 UTCJul 9, 01:10 UTC15m
2026-07-08 N76278 - Jul 8, 16:20 UTCJul 8, 16:30 UTC10m
2026-07-07 N76278 - Jul 7, 22:35 UTCJul 7, 22:45 UTC10m
2026-07-07 N76278 - Jul 7, 21:20 UTCJul 7, 21:35 UTC15m
2026-07-07 N76278 - Jul 7, 17:10 UTCJul 7, 17:25 UTC15m
2026-07-07 N76278 BFI → TIW Jul 7, 00:10 UTCJul 7, 00:25 UTC15m
2026-07-06 N76278 - Jul 6, 14:55 UTCJul 6, 15:15 UTC20m
2026-07-03 N76278 - Jul 3, 00:35 UTCJul 3, 00:50 UTC15m
2026-07-02 N76278 - Jul 2, 16:10 UTCJul 2, 16:25 UTC15m
2026-07-02 N76278 - Jul 2, 00:50 UTCJul 2, 01:05 UTC15m
2026-07-02 N76278 - Jul 2, 00:20 UTCJul 2, 00:40 UTC20m
2026-07-01 N76278 - Jul 1, 16:00 UTCJul 1, 16:15 UTC15m
2026-06-29 N76278 BFI → TIW Jun 29, 23:54 UTCJun 30, 00:09 UTC15m
2026-06-29 N76278 - Jun 29, 14:19 UTCJun 29, 14:34 UTC15m
2026-06-25 N76278 - Jun 25, 23:39 UTCJun 25, 23:59 UTC20m
2026-06-25 N76278 - Jun 25, 16:45 UTCJun 25, 16:59 UTC15m
2026-06-24 N76278 BFI → TIW Jun 24, 00:44 UTCJun 24, 00:59 UTC15m
2026-06-23 N76278 - Jun 23, 16:29 UTCJun 23, 16:50 UTC20m
2026-06-23 N76278 - Jun 23, 01:10 UTCJun 23, 01:25 UTC15m
2026-06-22 N76278 - Jun 22, 14:49 UTCJun 22, 15:05 UTC15m
2026-06-19 N76278 - Jun 19, 22:49 UTCJun 19, 23:25 UTC35m
2026-06-19 N76278 - Jun 19, 14:29 UTCJun 19, 14:44 UTC15m
2026-06-17 N76278 - Jun 17, 00:40 UTCJun 17, 00:55 UTC15m
2026-06-16 N76278 - Jun 16, 14:45 UTCJun 16, 15:00 UTC15m
2026-06-16 N76278 - Jun 16, 00:35 UTCJun 16, 00:50 UTC15m
2026-06-15 N76278 - Jun 15, 14:40 UTCJun 15, 14:55 UTC15m
2026-06-12 N76278 - Jun 12, 23:40 UTCJun 12, 23:55 UTC15m
2026-06-12 N76278 - Jun 12, 14:40 UTCJun 12, 14:55 UTC15m
2026-06-12 N76278 - Jun 12, 00:00 UTCJun 12, 00:15 UTC15m
2026-06-11 N76278 - Jun 11, 14:45 UTCJun 11, 15:05 UTC20m
2026-06-11 N76278 - Jun 11, 01:05 UTCJun 11, 01:20 UTC15m
2026-06-10 N76278 - Jun 10, 14:40 UTCJun 10, 14:55 UTC15m
2026-06-07 N76278 - Jun 7, 20:55 UTCJun 7, 21:05 UTC10m
2026-06-07 N76278 - Jun 7, 18:30 UTCJun 7, 18:40 UTC10m
2026-06-04 N76278 - Jun 4, 23:55 UTCJun 5, 00:10 UTC15m
2026-06-04 N76278 - Jun 4, 14:30 UTCJun 4, 14:45 UTC15m
2026-06-04 N76278 - Jun 4, 00:15 UTCJun 4, 00:30 UTC15m
2026-06-03 N76278 - Jun 3, 14:25 UTCJun 3, 14:40 UTC15m
2026-06-03 N76278 - Jun 3, 01:35 UTCJun 3, 02:10 UTC35m
2026-06-03 N76278 - Jun 3, 00:35 UTCJun 3, 01:00 UTC25m
2026-06-02 N76278 - Jun 2, 14:15 UTCJun 2, 14:30 UTC15m
2026-06-02 N76278 BFI → TIW Jun 2, 00:05 UTCJun 2, 00:20 UTC15m

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 N76278 page for operator, model, and routing details .

Mode-S AA4C64 frequently asked

What is Mode-S code AA4C64?
AA4C64 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N76278.
Where is Mode-S AA4C64 registered?
Mode-S code AA4C64 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 AA4C64 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA4C64, octal 52446144, decimal 11,160,676.
What flights does AA4C64 operate?
Mode-S AA4C64 has broadcast 1 distinct callsign, including N76278.