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sensors Mode-S transponder

A54963

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N44MM · MITSUBISHI MU-300 Diamond · operated by MIKE MOSER INC

Hex
A54963
Octal
51244543
Decimal
10,832,227
Country
US
Tail
N44MM
Type
MU30
No current signal · last broadcast Jul 23, 16:15 UTC
Flights observed
88
Distinct callsigns
1
Country
US
Last broadcast
Jul 23, 16:15 UTC

Last known position

Most recent position reported by Mode-S A54963.

Country allocation

The ICAO 24-bit address A54963 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
N44MM - 88 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 N44MM - Jul 23, 15:55 UTCJul 23, 16:15 UTC20m
2026-07-23 N44MM - Jul 23, 14:05 UTCJul 23, 15:15 UTC1h 10m
2026-07-23 N44MM - Jul 23, 12:25 UTCJul 23, 13:15 UTC50m
2026-07-19 N44MM - Jul 19, 16:35 UTCJul 19, 18:45 UTC2h 10m
2026-07-19 N44MM - Jul 19, 14:00 UTCJul 19, 15:00 UTC1h 0m
2026-07-19 N44MM - Jul 19, 12:55 UTCJul 19, 13:30 UTC35m
2026-07-17 N44MM - Jul 17, 23:05 UTCJul 18, 00:25 UTC1h 20m
2026-07-17 N44MM - Jul 17, 21:20 UTCJul 17, 22:25 UTC1h 5m
2026-07-17 N44MM - Jul 17, 19:40 UTCJul 17, 20:40 UTC1h 0m
2026-07-17 N44MM - Jul 17, 18:19 UTCJul 17, 19:09 UTC50m
2026-07-17 N44MM - Jul 17, 15:25 UTCJul 17, 16:15 UTC50m
2026-07-17 N44MM - Jul 17, 14:15 UTCJul 17, 14:50 UTC35m
2026-07-15 N44MM - Jul 15, 00:15 UTCJul 15, 03:20 UTC3h 5m
2026-07-14 N44MM - Jul 14, 19:35 UTCJul 14, 21:10 UTC1h 35m
2026-07-14 N44MM - Jul 14, 16:40 UTCJul 14, 18:55 UTC2h 15m
2026-07-14 N44MM - Jul 14, 14:00 UTCJul 14, 14:35 UTC35m
2026-07-12 N44MM - Jul 12, 17:50 UTCJul 12, 18:25 UTC35m
2026-07-12 N44MM - Jul 12, 17:01 UTCJul 12, 17:10 UTC10m
2026-07-12 N44MM - Jul 12, 13:05 UTCJul 12, 14:30 UTC1h 25m
2026-06-30 N44MM - Jun 30, 20:40 UTCJun 30, 21:15 UTC35m
2026-06-30 N44MM - Jun 30, 19:00 UTCJun 30, 20:05 UTC1h 5m
2026-06-30 N44MM - Jun 30, 15:20 UTCJun 30, 16:15 UTC55m
2026-06-30 N44MM - Jun 30, 14:10 UTCJun 30, 14:45 UTC35m
2026-06-26 N44MM - Jun 26, 20:15 UTCJun 26, 20:59 UTC45m
2026-06-26 N44MM - Jun 26, 18:20 UTCJun 26, 19:35 UTC1h 15m
2026-06-26 N44MM - Jun 26, 14:59 UTCJun 26, 16:20 UTC1h 20m
2026-06-26 N44MM - Jun 26, 13:40 UTCJun 26, 14:15 UTC35m
2026-06-25 N44MM - Jun 25, 22:29 UTCJun 26, 00:39 UTC2h 10m
2026-06-25 N44MM - Jun 25, 18:10 UTCJun 25, 20:34 UTC2h 25m
2026-06-25 N44MM - Jun 25, 15:15 UTCJun 25, 16:05 UTC50m
2026-06-25 N44MM - Jun 25, 14:04 UTCJun 25, 14:44 UTC40m
2026-06-25 N44MM - Jun 25, 00:49 UTCJun 25, 01:30 UTC40m
2026-06-24 N44MM - Jun 24, 23:14 UTCJun 25, 00:14 UTC1h 0m
2026-06-24 N44MM - Jun 24, 18:50 UTCJun 24, 21:44 UTC2h 55m
2026-06-17 N44MM - Jun 17, 23:15 UTCJun 18, 00:00 UTC45m
2026-06-17 N44MM - Jun 17, 21:25 UTCJun 17, 22:40 UTC1h 15m
2026-06-17 N44MM - Jun 17, 18:20 UTCJun 17, 19:20 UTC1h 0m
2026-06-17 N44MM - Jun 17, 17:05 UTCJun 17, 17:45 UTC40m
2026-06-17 N44MM - Jun 17, 03:40 UTCJun 17, 04:25 UTC45m
2026-06-17 N44MM - Jun 17, 02:10 UTCJun 17, 03:00 UTC50m
2026-06-16 N44MM - Jun 16, 23:35 UTCJun 17, 00:25 UTC50m
2026-06-16 N44MM - Jun 16, 22:05 UTCJun 16, 22:45 UTC40m
2026-06-10 N44MM - Jun 10, 05:15 UTCJun 10, 06:25 UTC1h 10m
2026-06-10 N44MM - Jun 10, 02:05 UTCJun 10, 03:20 UTC1h 15m
2026-06-10 N44MM - Jun 10, 00:15 UTCJun 10, 00:40 UTC25m
2026-06-07 N44MM - Jun 7, 19:00 UTCJun 7, 21:00 UTC2h 0m
2026-06-07 N44MM - Jun 7, 16:20 UTCJun 7, 18:10 UTC1h 50m
2026-06-02 N44MM - Jun 2, 23:15 UTCJun 2, 23:55 UTC40m
2026-06-02 N44MM - Jun 2, 21:55 UTCJun 2, 22:45 UTC50m
2026-06-02 N44MM - Jun 2, 17:40 UTCJun 2, 19:35 UTC1h 55m

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 N44MM page for operator, model, and routing details .

Mode-S A54963 frequently asked

What is Mode-S code A54963?
A54963 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N44MM.
Where is Mode-S A54963 registered?
Mode-S code A54963 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 A54963 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 16:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A54963, octal 51244543, decimal 10,832,227.
What flights does A54963 operate?
Mode-S A54963 has broadcast 1 distinct callsign, including N44MM.