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sensors Mode-S transponder

A6CD6D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N53742 · CESSNA 172 Skyhawk · operated by MH AVIATION INC

Hex
A6CD6D
Octal
51546555
Decimal
10,931,565
Country
US
Tail
N53742
Type
C172
No current signal · last broadcast 16d ago
Flights observed
78
Distinct callsigns
1
Country
US
Last broadcast
16d ago

Last known position

Most recent position reported by Mode-S A6CD6D.

Country allocation

The ICAO 24-bit address A6CD6D 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
N53742 - 78 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 N53742 - Jul 23, 21:30 UTCJul 23, 22:10 UTC40m
2026-07-23 N53742 - Jul 23, 20:20 UTCJul 23, 21:00 UTC40m
2026-07-22 N53742 - Jul 22, 13:40 UTCJul 22, 14:00 UTC20m
2026-07-21 N53742 - Jul 21, 16:20 UTCJul 21, 17:05 UTC45m
2026-07-21 N53742 - Jul 21, 15:10 UTCJul 21, 16:15 UTC1h 5m
2026-07-21 N53742 - Jul 21, 04:55 UTCJul 21, 06:05 UTC1h 10m
2026-07-21 N53742 - Jul 21, 04:05 UTCJul 21, 04:50 UTC45m
2026-07-20 N53742 - Jul 20, 19:35 UTCJul 20, 20:10 UTC35m
2026-07-20 N53742 - Jul 20, 18:25 UTCJul 20, 19:00 UTC35m
2026-07-20 N53742 - Jul 20, 14:45 UTCJul 20, 15:50 UTC1h 5m
2026-07-19 N53742 - Jul 19, 19:20 UTCJul 19, 20:05 UTC45m
2026-07-19 N53742 - Jul 19, 18:15 UTCJul 19, 18:40 UTC25m
2026-07-17 N53742 - Jul 17, 16:59 UTCJul 17, 18:15 UTC1h 15m
2026-07-17 N53742 - Jul 17, 14:55 UTCJul 17, 15:44 UTC50m
2026-07-17 N53742 WJF → BFL Jul 17, 14:00 UTCJul 17, 14:39 UTC40m
2026-07-16 N53742 - Jul 16, 19:20 UTCJul 16, 20:39 UTC1h 20m
2026-07-14 N53742 - Jul 14, 22:15 UTCJul 14, 23:20 UTC1h 4m
2026-07-14 N53742 - Jul 14, 19:45 UTCJul 14, 20:00 UTC15m
2026-07-14 N53742 - Jul 14, 19:30 UTCJul 14, 19:40 UTC10m
2026-07-14 N53742 - Jul 14, 18:55 UTCJul 14, 19:20 UTC25m
2026-07-13 N53742 - Jul 13, 20:20 UTCJul 13, 21:25 UTC1h 5m
2026-07-13 N53742 - Jul 13, 16:50 UTCJul 13, 17:15 UTC25m
2026-07-05 N53742 - Jul 5, 19:15 UTCJul 5, 19:55 UTC40m
2026-07-05 N53742 BFL → BFL Jul 5, 18:50 UTCJul 5, 19:10 UTC20m
2026-07-05 N53742 - Jul 5, 18:15 UTCJul 5, 18:40 UTC25m
2026-07-04 N53742 - Jul 4, 15:50 UTCJul 4, 16:10 UTC20m
2026-07-03 N53742 - Jul 3, 21:50 UTCJul 3, 23:00 UTC1h 10m
2026-07-03 N53742 - Jul 3, 18:15 UTCJul 3, 19:20 UTC1h 5m
2026-07-03 N53742 - Jul 3, 15:35 UTCJul 3, 16:25 UTC50m
2026-07-03 N53742 - Jul 3, 14:25 UTCJul 3, 14:55 UTC30m
2026-06-30 N53742 - Jun 30, 13:55 UTCJun 30, 14:25 UTC30m
2026-06-23 N53742 - Jun 23, 13:59 UTCJun 23, 14:10 UTC10m
2026-06-23 N53742 - Jun 23, 02:29 UTCJun 23, 02:55 UTC25m
2026-06-22 N53742 - Jun 22, 18:24 UTCJun 22, 18:44 UTC20m
2026-06-18 N53742 - Jun 18, 20:30 UTCJun 18, 21:05 UTC35m
2026-06-18 N53742 - Jun 18, 19:20 UTCJun 18, 19:55 UTC35m
2026-06-18 N53742 - Jun 18, 15:50 UTCJun 18, 16:40 UTC50m
2026-06-18 N53742 - Jun 18, 14:30 UTCJun 18, 15:10 UTC40m
2026-06-16 N53742 - Jun 16, 20:20 UTCJun 16, 20:45 UTC25m
2026-06-16 N53742 BFL → BFL Jun 16, 17:55 UTCJun 16, 19:15 UTC1h 20m
2026-06-16 N53742 - Jun 16, 02:24 UTCJun 16, 02:45 UTC20m
2026-06-14 N53742 - Jun 14, 18:20 UTCJun 14, 20:10 UTC1h 50m
2026-06-13 N53742 - Jun 13, 18:25 UTCJun 13, 20:45 UTC2h 20m
2026-06-10 N53742 - Jun 10, 01:05 UTCJun 10, 02:35 UTC1h 30m
2026-06-06 N53742 - Jun 6, 14:00 UTCJun 6, 15:39 UTC1h 40m
2026-06-05 N53742 - Jun 5, 21:25 UTCJun 5, 21:45 UTC20m
2026-06-05 N53742 - Jun 5, 20:00 UTCJun 5, 20:25 UTC25m
2026-06-04 N53742 - Jun 4, 18:55 UTCJun 4, 19:20 UTC25m
2026-06-03 N53742 - Jun 3, 05:25 UTCJun 3, 06:00 UTC35m
2026-06-03 N53742 - Jun 3, 04:35 UTCJun 3, 05:05 UTC30m

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 N53742 page for operator, model, and routing details .

Mode-S A6CD6D frequently asked

What is Mode-S code A6CD6D?
A6CD6D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N53742.
Where is Mode-S A6CD6D registered?
Mode-S code A6CD6D 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 A6CD6D broadcasting right now?
No active broadcast right now. Last signal was 16d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6CD6D, octal 51546555, decimal 10,931,565.
What flights does A6CD6D operate?
Mode-S A6CD6D has broadcast 1 distinct callsign, including N53742.