Apparatus

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sensors Mode-S transponder

A0504C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1192M · CESSNA 172 Skyhawk · operated by GARUDA AVIATION INC

Hex
A0504C
Octal
50050114
Decimal
10,506,316
Country
US
Tail
N1192M
Type
C172
No current signal · last broadcast 1d ago
Flights observed
10
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A0504C.

Country allocation

The ICAO 24-bit address A0504C 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
N1192M - 10 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 N1192M - Apr 13, 23:15 UTCApr 13, 23:40 UTC25m
2026-04-13 N1192M TMB → TMB Apr 13, 20:40 UTCApr 13, 21:15 UTC35m
2026-04-13 N1192M - Apr 13, 15:50 UTCApr 13, 16:05 UTC15m
2026-04-13 N1192M - Apr 13, 15:40 UTCApr 13, 16:05 UTC25m
2026-04-13 N1192M - Apr 13, 14:35 UTCApr 13, 15:35 UTC1h 0m
2026-04-13 N1192M - Apr 13, 13:20 UTCApr 13, 14:30 UTC1h 10m
2026-04-13 N1192M TMB → TMB Apr 13, 11:10 UTCApr 13, 12:00 UTC50m
2026-04-13 N1192M TMB → TMB Apr 13, 02:15 UTCApr 13, 02:45 UTC30m
2026-04-13 N1192M - Apr 13, 00:20 UTCApr 13, 01:25 UTC1h 5m
2026-04-13 N1192M - Apr 13, 00:05 UTCApr 13, 01:25 UTC1h 20m

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 N1192M page for operator, model, and routing details .

Mode-S A0504C frequently asked

What is Mode-S code A0504C?
A0504C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1192M.
Where is Mode-S A0504C registered?
Mode-S code A0504C 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 A0504C broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0504C, octal 50050114, decimal 10,506,316.
What flights does A0504C operate?
Mode-S A0504C has broadcast 1 distinct callsign, including N1192M.