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sensors Mode-S transponder

A526DF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N431AK · operated by STRAY DOG LEASING LLC

Hex
A526DF
Octal
51223337
Decimal
10,823,391
Country
US
Tail
N431AK
Type
SLG4
No current signal · last broadcast 1d ago
Flights observed
136
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A526DF.

Country allocation

The ICAO 24-bit address A526DF 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
N431AK - 136 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 N431AK WWA → WWA Jul 10, 22:40 UTCJul 10, 23:40 UTC1h 0m
2026-07-10 N431AK - Jul 10, 19:15 UTCJul 10, 20:00 UTC45m
2026-07-10 N431AK WWA → WWA Jul 10, 17:30 UTCJul 10, 18:45 UTC1h 15m
2026-07-09 N431AK WWA → WWA Jul 9, 20:35 UTCJul 9, 21:40 UTC1h 5m
2026-07-09 N431AK - Jul 9, 15:40 UTCJul 9, 16:20 UTC40m
2026-07-08 N431AK - Jul 8, 17:45 UTCJul 8, 19:00 UTC1h 15m
2026-07-04 N431AK WWA → WWA Jul 4, 23:05 UTCJul 4, 23:55 UTC50m
2026-07-04 N431AK TKA → WWA Jul 4, 01:25 UTCJul 4, 02:50 UTC1h 25m
2026-07-03 N431AK WWA → TKA Jul 3, 22:15 UTCJul 3, 23:10 UTC55m
2026-07-02 N431AK - Jul 2, 23:55 UTCJul 3, 01:25 UTC1h 30m
2026-07-02 N431AK - Jul 2, 21:30 UTCJul 2, 22:55 UTC1h 25m
2026-07-02 N431AK WWA → WWA Jul 2, 18:40 UTCJul 2, 20:10 UTC1h 30m
2026-07-02 N431AK WWA → WWA Jul 2, 15:55 UTCJul 2, 17:15 UTC1h 20m
2026-07-02 N431AK WWA → WWA Jul 2, 01:05 UTCJul 2, 01:50 UTC45m
2026-07-01 N431AK - Jul 1, 23:30 UTCJul 2, 00:40 UTC1h 10m
2026-07-01 N431AK WWA → WWA Jul 1, 21:30 UTCJul 1, 22:55 UTC1h 25m
2026-07-01 N431AK WWA → WWA Jul 1, 15:55 UTCJul 1, 17:20 UTC1h 25m
2026-06-29 N431AK - Jun 29, 17:45 UTCJun 29, 19:15 UTC1h 30m
2026-06-26 N431AK WWA → WWA Jun 26, 19:24 UTCJun 26, 20:29 UTC1h 5m
2026-06-26 N431AK WWA → WWA Jun 26, 17:29 UTCJun 26, 18:44 UTC1h 15m
2026-06-25 N431AK WWA → WWA Jun 25, 20:34 UTCJun 25, 21:25 UTC50m
2026-06-25 N431AK WWA → WWA Jun 25, 17:44 UTCJun 25, 18:55 UTC1h 10m
2026-06-25 N431AK WWA → WWA Jun 25, 01:54 UTCJun 25, 02:25 UTC30m
2026-06-24 N431AK - Jun 24, 23:45 UTCJun 25, 00:49 UTC1h 5m
2026-06-24 N431AK - Jun 24, 22:10 UTCJun 24, 23:04 UTC55m
2026-06-24 N431AK WWA → WWA Jun 24, 19:59 UTCJun 24, 21:24 UTC1h 25m
2026-06-21 N431AK WWA → WWA Jun 21, 01:39 UTCJun 21, 02:55 UTC1h 15m
2026-06-20 N431AK - Jun 20, 19:24 UTCJun 20, 20:25 UTC1h 0m
2026-06-20 N431AK WWA → WWA Jun 20, 17:54 UTCJun 20, 18:54 UTC1h 0m
2026-06-19 N431AK - Jun 19, 22:49 UTCJun 19, 23:34 UTC45m
2026-06-19 N431AK WWA → WWA Jun 19, 21:49 UTCJun 19, 22:30 UTC40m
2026-06-19 N431AK - Jun 19, 20:24 UTCJun 19, 20:44 UTC20m
2026-06-19 N431AK - Jun 19, 19:19 UTCJun 19, 19:29 UTC10m
2026-06-18 N431AK WWA → WWA Jun 18, 23:50 UTCJun 19, 01:15 UTC1h 24m
2026-06-18 N431AK - Jun 18, 21:35 UTCJun 18, 22:55 UTC1h 20m
2026-06-18 N431AK WWA → WWA Jun 18, 19:35 UTCJun 18, 20:55 UTC1h 20m
2026-06-18 N431AK ENA → WWA Jun 18, 16:50 UTCJun 18, 18:15 UTC1h 25m
2026-06-18 N431AK WWA → ENA Jun 18, 15:30 UTCJun 18, 16:35 UTC1h 5m
2026-06-18 N431AK WWA → WWA Jun 18, 01:30 UTCJun 18, 02:35 UTC1h 5m
2026-06-17 N431AK WWA → WWA Jun 17, 23:00 UTCJun 18, 00:25 UTC1h 25m
2026-06-17 N431AK - Jun 17, 19:35 UTCJun 17, 20:45 UTC1h 10m
2026-06-17 N431AK - Jun 17, 17:45 UTCJun 17, 18:50 UTC1h 5m
2026-06-17 N431AK - Jun 17, 16:45 UTCJun 17, 17:00 UTC15m
2026-06-17 N431AK WWA → WWA Jun 17, 15:30 UTCJun 17, 16:25 UTC55m
2026-06-16 N431AK WWA → WWA Jun 16, 21:35 UTCJun 16, 22:10 UTC35m
2026-06-16 N431AK - Jun 16, 20:25 UTCJun 16, 20:55 UTC30m
2026-06-16 N431AK WWA → WWA Jun 16, 18:50 UTCJun 16, 20:00 UTC1h 11m
2026-06-15 N431AK - Jun 15, 23:45 UTCJun 16, 00:35 UTC50m
2026-06-15 N431AK WWA → WWA Jun 15, 22:25 UTCJun 15, 23:19 UTC55m
2026-06-15 N431AK - Jun 15, 19:39 UTCJun 15, 20:54 UTC1h 15m

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 N431AK page for operator, model, and routing details .

Mode-S A526DF frequently asked

What is Mode-S code A526DF?
A526DF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N431AK.
Where is Mode-S A526DF registered?
Mode-S code A526DF 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 A526DF 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 A526DF, octal 51223337, decimal 10,823,391.
What flights does A526DF operate?
Mode-S A526DF has broadcast 1 distinct callsign, including N431AK.