Apparatus

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sensors Mode-S transponder

A548DB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N44GA · CESSNA 414 Chancellor · operated by ROSS AVIATION LEASING LTD

Hex
A548DB
Octal
51244333
Decimal
10,832,091
Country
US
Tail
N44GA
Type
C414
No current signal · last broadcast Jul 23, 20:50 UTC
Flights observed
25
Distinct callsigns
1
Country
US
Last broadcast
Jul 23, 20:50 UTC

Last known position

Most recent position reported by Mode-S A548DB.

Country allocation

The ICAO 24-bit address A548DB 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
N44GA - 25 2026-07-23

Recent flights last 25

DateFlightRouteTakeoffLandingDuration
2026-07-23 N44GA - Jul 23, 20:10 UTCJul 23, 20:50 UTC40m
2026-07-21 N44GA - Jul 21, 19:00 UTCJul 21, 19:50 UTC50m
2026-07-21 N44GA - Jul 21, 10:15 UTCJul 21, 12:00 UTC1h 45m
2026-07-21 N44GA - Jul 21, 08:40 UTCJul 21, 09:35 UTC55m
2026-07-20 N44GA - Jul 20, 19:40 UTCJul 20, 21:00 UTC1h 20m
2026-07-20 N44GA - Jul 20, 12:55 UTCJul 20, 18:15 UTC5h 20m
2026-07-08 N44GA - Jul 8, 20:20 UTCJul 8, 20:30 UTC10m
2026-07-08 N44GA - Jul 8, 19:20 UTCJul 8, 20:00 UTC40m
2026-07-08 N44GA - Jul 8, 12:05 UTCJul 8, 12:50 UTC45m
2026-07-08 N44GA - Jul 8, 11:40 UTCJul 8, 11:50 UTC10m
2026-06-24 N44GA - Jun 24, 19:39 UTCJun 24, 23:10 UTC3h 30m
2026-06-24 N44GA - Jun 24, 15:59 UTCJun 24, 17:14 UTC1h 15m
2026-06-24 N44GA UES → MKG Jun 24, 13:54 UTCJun 24, 14:29 UTC35m
2026-06-18 N44GA - Jun 18, 18:45 UTCJun 18, 22:20 UTC3h 35m
2026-06-18 N44GA - Jun 18, 17:05 UTCJun 18, 17:55 UTC50m
2026-06-17 N44GA - Jun 17, 16:55 UTCJun 17, 17:15 UTC20m
2026-06-13 N44GA - Jun 13, 13:40 UTCJun 13, 13:50 UTC10m
2026-06-09 N44GA - Jun 9, 21:20 UTCJun 9, 21:35 UTC15m
2026-06-09 N44GA - Jun 9, 20:40 UTCJun 9, 21:10 UTC30m
2026-05-07 N44GA - May 7, 22:25 UTCMay 7, 23:34 UTC1h 9m
2026-05-07 N44GA - May 7, 20:20 UTCMay 7, 21:15 UTC55m
2026-05-01 N44GA - May 1, 21:55 UTCMay 1, 22:20 UTC25m
2026-05-01 N44GA - May 1, 21:25 UTCMay 1, 21:50 UTC25m
2026-04-25 N44GA - Apr 25, 19:40 UTCApr 25, 21:10 UTC1h 30m
2026-04-25 N44GA - Apr 25, 11:35 UTCApr 25, 12:45 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 N44GA page for operator, model, and routing details .

Mode-S A548DB frequently asked

What is Mode-S code A548DB?
A548DB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N44GA.
Where is Mode-S A548DB registered?
Mode-S code A548DB 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 A548DB broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 20:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A548DB, octal 51244333, decimal 10,832,091.
What flights does A548DB operate?
Mode-S A548DB has broadcast 1 distinct callsign, including N44GA.