Apparatus

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sensors Mode-S transponder

AA3527

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N757MK · CESSNA 172 Skyhawk · operated by 101 FLIGHT LLC

Hex
AA3527
Octal
52432447
Decimal
11,154,727
Country
US
Tail
N757MK
Type
C172
No current signal · last broadcast 4h ago
Flights observed
87
Distinct callsigns
1
Country
US
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S AA3527.

Country allocation

The ICAO 24-bit address AA3527 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
N757MK - 87 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-06 N757MK PTK → PTK Jun 6, 22:10 UTCJun 6, 23:35 UTC1h 25m
2026-06-06 N757MK - Jun 6, 20:25 UTCJun 6, 20:45 UTC20m
2026-06-06 N757MK - Jun 6, 19:30 UTCJun 6, 19:50 UTC20m
2026-06-06 N757MK - Jun 6, 18:55 UTCJun 6, 19:14 UTC20m
2026-06-06 N757MK - Jun 6, 17:19 UTCJun 6, 17:54 UTC35m
2026-06-06 N757MK - Jun 6, 15:05 UTCJun 6, 15:25 UTC20m
2026-06-05 N757MK PTK → PTK Jun 5, 21:55 UTCJun 5, 22:35 UTC40m
2026-06-05 N757MK PTK → PTK Jun 5, 20:20 UTCJun 5, 20:50 UTC30m
2026-06-04 N757MK - Jun 4, 22:35 UTCJun 5, 00:05 UTC1h 30m
2026-06-04 N757MK - Jun 4, 21:05 UTCJun 4, 21:40 UTC35m
2026-06-04 N757MK - Jun 4, 20:40 UTCJun 4, 20:55 UTC15m
2026-06-04 N757MK - Jun 4, 18:50 UTCJun 4, 20:05 UTC1h 15m
2026-06-04 N757MK - Jun 4, 15:05 UTCJun 4, 15:30 UTC25m
2026-06-04 N757MK - Jun 4, 12:55 UTCJun 4, 14:00 UTC1h 5m
2026-06-03 N757MK - Jun 3, 22:25 UTCJun 3, 23:15 UTC50m
2026-06-03 N757MK - Jun 3, 20:45 UTCJun 3, 21:25 UTC40m
2026-06-03 N757MK - Jun 3, 17:55 UTCJun 3, 18:50 UTC55m
2026-06-03 N757MK - Jun 3, 16:25 UTCJun 3, 17:00 UTC35m
2026-06-03 N757MK - Jun 3, 14:20 UTCJun 3, 15:30 UTC1h 10m
2026-06-02 N757MK - Jun 2, 23:20 UTCJun 3, 00:25 UTC1h 5m
2026-06-02 N757MK - Jun 2, 16:35 UTCJun 2, 16:55 UTC20m
2026-06-02 N757MK - Jun 2, 14:05 UTCJun 2, 14:35 UTC30m
2026-06-01 N757MK - Jun 1, 14:10 UTCJun 1, 15:25 UTC1h 15m
2026-05-31 N757MK - May 31, 21:45 UTCMay 31, 22:20 UTC35m
2026-05-31 N757MK - May 31, 19:25 UTCMay 31, 20:15 UTC50m
2026-05-31 N757MK - May 31, 16:30 UTCMay 31, 16:50 UTC20m
2026-05-30 N757MK - May 30, 00:05 UTCMay 30, 01:00 UTC55m
2026-05-29 N757MK - May 29, 17:50 UTCMay 29, 18:55 UTC1h 5m
2026-05-29 N757MK PTK → PTK May 29, 14:10 UTCMay 29, 15:10 UTC1h 0m
2026-05-28 N757MK - May 28, 21:55 UTCMay 28, 22:15 UTC20m
2026-05-28 N757MK - May 28, 16:00 UTCMay 28, 16:15 UTC15m
2026-05-27 N757MK - May 27, 23:15 UTCMay 28, 00:20 UTC1h 5m
2026-05-27 N757MK - May 27, 18:30 UTCMay 27, 19:40 UTC1h 10m
2026-05-26 N757MK - May 26, 22:44 UTCMay 26, 23:10 UTC25m
2026-05-26 N757MK - May 26, 18:55 UTCMay 26, 20:05 UTC1h 10m
2026-05-26 N757MK - May 26, 16:30 UTCMay 26, 17:20 UTC50m
2026-05-26 N757MK - May 26, 14:45 UTCMay 26, 15:29 UTC45m
2026-05-26 N757MK - May 26, 14:24 UTCMay 26, 14:40 UTC15m
2026-05-25 N757MK - May 25, 14:35 UTCMay 25, 15:55 UTC1h 20m
2026-05-21 N757MK - May 21, 21:40 UTCMay 21, 22:40 UTC1h 0m
2026-05-20 N757MK - May 20, 22:40 UTCMay 21, 00:10 UTC1h 30m
2026-05-20 N757MK - May 20, 20:15 UTCMay 20, 21:35 UTC1h 20m
2026-05-20 N757MK - May 20, 17:40 UTCMay 20, 18:40 UTC1h 0m
2026-05-20 N757MK - May 20, 16:40 UTCMay 20, 17:00 UTC20m
2026-05-17 N757MK - May 17, 18:35 UTCMay 17, 19:30 UTC55m
2026-05-15 N757MK - May 15, 23:30 UTCMay 16, 01:00 UTC1h 30m
2026-05-15 N757MK - May 15, 20:25 UTCMay 15, 20:50 UTC25m
2026-05-15 N757MK - May 15, 18:25 UTCMay 15, 19:30 UTC1h 5m
2026-05-15 N757MK - May 15, 16:40 UTCMay 15, 17:40 UTC1h 0m
2026-05-15 N757MK - May 15, 14:15 UTCMay 15, 15:30 UTC1h 14m

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 N757MK page for operator, model, and routing details .

Mode-S AA3527 frequently asked

What is Mode-S code AA3527?
AA3527 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N757MK.
Where is Mode-S AA3527 registered?
Mode-S code AA3527 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 AA3527 broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA3527, octal 52432447, decimal 11,154,727.
What flights does AA3527 operate?
Mode-S AA3527 has broadcast 1 distinct callsign, including N757MK.