Apparatus

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sensors Mode-S transponder

A56A94

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N448Z · operated by ALPHA TANGO AIRCRAFT LLC

Hex
A56A94
Octal
51265224
Decimal
10,840,724
Country
US
Tail
N448Z
Type
P28A
No current signal · last broadcast 11h ago
Flights observed
120
Distinct callsigns
1
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S A56A94.

Country allocation

The ICAO 24-bit address A56A94 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
CXK351 - 120 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 CXK351 - Jul 20, 22:45 UTCJul 21, 00:05 UTC1h 19m
2026-07-20 CXK351 - Jul 20, 22:15 UTCJul 20, 22:40 UTC25m
2026-07-20 CXK351 - Jul 20, 21:05 UTCJul 20, 22:05 UTC1h 0m
2026-07-20 CXK351 - Jul 20, 19:10 UTCJul 20, 19:20 UTC10m
2026-07-20 CXK351 - Jul 20, 17:45 UTCJul 20, 17:55 UTC10m
2026-07-20 CXK351 MMU → MMU Jul 20, 15:05 UTCJul 20, 16:30 UTC1h 25m
2026-07-20 CXK351 - Jul 20, 09:05 UTCJul 20, 10:45 UTC1h 40m
2026-07-17 CXK351 - Jul 17, 08:59 UTCJul 17, 09:45 UTC45m
2026-07-15 CXK351 MMU → MMU Jul 15, 18:20 UTCJul 15, 19:35 UTC1h 15m
2026-07-15 CXK351 - Jul 15, 14:30 UTCJul 15, 15:10 UTC40m
2026-07-15 CXK351 MMU → MMU Jul 15, 11:35 UTCJul 15, 13:20 UTC1h 45m
2026-07-15 CXK351 - Jul 15, 10:15 UTCJul 15, 10:45 UTC30m
2026-07-14 CXK351 - Jul 14, 23:50 UTCJul 15, 01:20 UTC1h 30m
2026-07-14 CXK351 - Jul 14, 13:55 UTCJul 14, 15:25 UTC1h 30m
2026-07-13 CXK351 - Jul 13, 21:30 UTCJul 13, 22:55 UTC1h 25m
2026-07-13 CXK351 - Jul 13, 17:15 UTCJul 13, 19:05 UTC1h 50m
2026-07-13 CXK351 - Jul 13, 12:30 UTCJul 13, 14:05 UTC1h 35m
2026-07-13 CXK351 - Jul 13, 08:50 UTCJul 13, 10:25 UTC1h 35m
2026-07-12 CXK351 - Jul 12, 16:50 UTCJul 12, 19:01 UTC2h 10m
2026-07-12 CXK351 - Jul 12, 13:15 UTCJul 12, 15:20 UTC2h 5m
2026-07-02 CXK351 - Jul 2, 19:05 UTCJul 2, 21:45 UTC2h 40m
2026-07-02 CXK351 FRG → FRG Jul 2, 09:15 UTCJul 2, 11:05 UTC1h 50m
2026-07-01 CXK351 FRG → FRG Jul 1, 22:45 UTCJul 1, 23:30 UTC45m
2026-07-01 CXK351 FRG → FRG Jul 1, 14:45 UTCJul 1, 16:45 UTC2h 0m
2026-07-01 CXK351 - Jul 1, 12:10 UTCJul 1, 13:50 UTC1h 40m
2026-06-30 CXK351 - Jun 30, 09:10 UTCJun 30, 11:15 UTC2h 5m
2026-06-30 CXK351 - Jun 30, 03:55 UTCJun 30, 04:30 UTC35m
2026-06-30 CXK351 - Jun 30, 01:40 UTCJun 30, 02:15 UTC35m
2026-06-29 CXK351 - Jun 29, 19:09 UTCJun 29, 20:09 UTC1h 0m
2026-06-29 CXK351 - Jun 29, 17:24 UTCJun 29, 18:05 UTC40m
2026-06-29 CXK351 - Jun 29, 13:49 UTCJun 29, 15:09 UTC1h 20m
2026-06-29 CXK351 - Jun 29, 12:20 UTCJun 29, 13:09 UTC50m
2026-06-28 CXK351 FRG → FRG Jun 28, 11:19 UTCJun 28, 11:50 UTC30m
2026-06-28 CXK351 - Jun 28, 09:20 UTCJun 28, 10:39 UTC1h 20m
2026-06-27 CXK351 - Jun 27, 18:15 UTCJun 27, 19:55 UTC1h 40m
2026-06-27 CXK351 - Jun 27, 15:05 UTCJun 27, 16:55 UTC1h 50m
2026-06-27 CXK351 - Jun 27, 09:09 UTCJun 27, 10:19 UTC1h 10m
2026-06-27 CXK351 - Jun 27, 02:39 UTCJun 27, 04:39 UTC2h 0m
2026-06-26 CXK351 - Jun 26, 18:24 UTCJun 26, 20:20 UTC1h 55m
2026-06-26 CXK351 - Jun 26, 16:00 UTCJun 26, 17:19 UTC1h 20m
2026-06-26 CXK351 FRG → FRG Jun 26, 11:55 UTCJun 26, 14:25 UTC2h 30m
2026-06-26 CXK351 FRG → FRG Jun 26, 01:39 UTCJun 26, 02:14 UTC35m
2026-06-25 CXK351 FRG → FRG Jun 25, 23:05 UTCJun 26, 00:05 UTC1h 0m
2026-06-25 CXK351 FRG → FRG Jun 25, 20:54 UTCJun 25, 22:14 UTC1h 20m
2026-06-25 CXK351 FRG → FRG Jun 25, 18:59 UTCJun 25, 20:09 UTC1h 10m
2026-06-25 CXK351 - Jun 25, 15:20 UTCJun 25, 16:59 UTC1h 40m
2026-06-25 CXK351 - Jun 25, 13:24 UTCJun 25, 14:24 UTC1h 0m
2026-06-25 CXK351 FRG → FRG Jun 25, 11:54 UTCJun 25, 12:50 UTC55m
2026-06-25 CXK351 - Jun 25, 04:10 UTCJun 25, 04:40 UTC30m
2026-06-25 CXK351 - Jun 25, 01:24 UTCJun 25, 01:59 UTC35m

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 N448Z page for operator, model, and routing details .

Mode-S A56A94 frequently asked

What is Mode-S code A56A94?
A56A94 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N448Z.
Where is Mode-S A56A94 registered?
Mode-S code A56A94 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 A56A94 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A56A94, octal 51265224, decimal 10,840,724.
What flights does A56A94 operate?
Mode-S A56A94 has broadcast 1 distinct callsign, including CXK351.