Apparatus

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sensors Mode-S transponder

A6CD5C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N5374K · CESSNA 172 Skyhawk · operated by APEX AIRCRAFT LEASING LLC

Hex
A6CD5C
Octal
51546534
Decimal
10,931,548
Country
US
Tail
N5374K
Type
C172
No current signal · last broadcast 3d ago
Flights observed
163
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A6CD5C.

Country allocation

The ICAO 24-bit address A6CD5C 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
N5374K - 163 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 N5374K - Jul 15, 02:10 UTCJul 15, 03:05 UTC55m
2026-07-15 N5374K - Jul 15, 01:10 UTCJul 15, 02:00 UTC50m
2026-07-14 N5374K - Jul 14, 02:45 UTCJul 14, 03:05 UTC20m
2026-07-11 N5374K MRI → MRI Jul 11, 03:25 UTCJul 11, 05:10 UTC1h 45m
2026-07-10 N5374K - Jul 10, 23:25 UTCJul 11, 01:05 UTC1h 40m
2026-07-10 N5374K - Jul 10, 21:00 UTCJul 10, 21:55 UTC55m
2026-07-09 N5374K - Jul 9, 21:40 UTCJul 9, 22:40 UTC1h 0m
2026-07-09 N5374K - Jul 9, 20:35 UTCJul 9, 20:55 UTC20m
2026-07-09 N5374K - Jul 9, 17:20 UTCJul 9, 18:30 UTC1h 10m
2026-07-09 N5374K - Jul 9, 03:05 UTCJul 9, 04:10 UTC1h 5m
2026-07-08 N5374K - Jul 8, 01:05 UTCJul 8, 02:40 UTC1h 35m
2026-07-06 N5374K - Jul 6, 18:05 UTCJul 6, 19:55 UTC1h 50m
2026-07-05 N5374K - Jul 5, 20:20 UTCJul 5, 21:30 UTC1h 10m
2026-07-05 N5374K - Jul 5, 05:45 UTCJul 5, 06:05 UTC20m
2026-07-05 N5374K - Jul 5, 05:15 UTCJul 5, 05:35 UTC20m
2026-07-03 N5374K - Jul 3, 18:15 UTCJul 3, 19:50 UTC1h 35m
2026-07-02 N5374K - Jul 2, 20:55 UTCJul 2, 21:35 UTC40m
2026-07-02 N5374K - Jul 2, 02:55 UTCJul 2, 03:50 UTC55m
2026-07-02 N5374K - Jul 2, 01:05 UTCJul 2, 01:35 UTC30m
2026-07-01 N5374K - Jul 1, 23:45 UTCJul 2, 00:00 UTC15m
2026-06-29 N5374K - Jun 29, 23:44 UTCJun 30, 00:09 UTC25m
2026-06-29 N5374K MRI → MRI Jun 29, 22:19 UTCJun 29, 22:39 UTC20m
2026-06-29 N5374K MRI → MRI Jun 29, 21:14 UTCJun 29, 22:15 UTC1h 0m
2026-06-26 N5374K MRI → MRI Jun 26, 02:34 UTCJun 26, 04:04 UTC1h 30m
2026-06-24 N5374K MRI → MRI Jun 24, 02:24 UTCJun 24, 03:29 UTC1h 5m
2026-06-23 N5374K MRI → MRI Jun 23, 21:59 UTCJun 23, 22:25 UTC25m
2026-06-23 N5374K MRI → MRI Jun 23, 20:34 UTCJun 23, 21:49 UTC1h 15m
2026-06-22 N5374K WWA → MRI Jun 22, 20:34 UTCJun 22, 21:00 UTC25m
2026-06-22 N5374K MRI → WWA Jun 22, 19:40 UTCJun 22, 20:24 UTC45m
2026-06-20 N5374K MRI → MRI Jun 20, 04:39 UTCJun 20, 05:24 UTC45m
2026-06-20 N5374K - Jun 20, 01:05 UTCJun 20, 01:44 UTC40m
2026-06-19 N5374K MRI → ENA Jun 19, 23:54 UTCJun 20, 00:59 UTC1h 5m
2026-06-19 N5374K - Jun 19, 03:15 UTCJun 19, 04:34 UTC1h 20m
2026-06-18 N5374K - Jun 18, 23:40 UTCJun 19, 00:55 UTC1h 14m
2026-06-18 N5374K - Jun 18, 20:40 UTCJun 18, 22:25 UTC1h 45m
2026-06-18 N5374K TKA → MRI Jun 18, 02:10 UTCJun 18, 03:00 UTC50m
2026-06-17 N5374K - Jun 17, 21:15 UTCJun 17, 22:40 UTC1h 25m
2026-06-17 N5374K - Jun 17, 00:45 UTCJun 17, 02:45 UTC2h 0m
2026-06-16 N5374K MRI → MRI Jun 16, 21:25 UTCJun 16, 22:40 UTC1h 15m
2026-06-15 N5374K - Jun 15, 23:09 UTCJun 16, 00:20 UTC1h 10m
2026-06-15 N5374K - Jun 15, 20:25 UTCJun 15, 22:10 UTC1h 45m
2026-06-15 N5374K - Jun 15, 19:05 UTCJun 15, 19:45 UTC40m
2026-06-14 N5374K - Jun 14, 23:59 UTCJun 15, 00:49 UTC50m
2026-06-14 N5374K - Jun 14, 23:20 UTCJun 14, 23:54 UTC35m
2026-06-14 N5374K MRI → MRI Jun 14, 23:05 UTCJun 14, 23:10 UTC4m
2026-06-14 N5374K - Jun 14, 02:20 UTCJun 14, 03:55 UTC1h 35m
2026-06-13 N5374K - Jun 13, 22:25 UTCJun 13, 22:50 UTC25m
2026-06-13 N5374K - Jun 13, 21:00 UTCJun 13, 22:20 UTC1h 20m
2026-06-13 N5374K MRI → MRI Jun 13, 18:05 UTCJun 13, 19:30 UTC1h 25m
2026-06-06 N5374K - Jun 6, 18:39 UTCJun 6, 18:59 UTC20m

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 N5374K page for operator, model, and routing details .

Mode-S A6CD5C frequently asked

What is Mode-S code A6CD5C?
A6CD5C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N5374K.
Where is Mode-S A6CD5C registered?
Mode-S code A6CD5C 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 A6CD5C broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6CD5C, octal 51546534, decimal 10,931,548.
What flights does A6CD5C operate?
Mode-S A6CD5C has broadcast 1 distinct callsign, including N5374K.