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sensors Mode-S transponder

AA31EA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N756SG · CESSNA T206 Turbo Stationair · operated by WATERS AERO MARINE INC

Hex
AA31EA
Octal
52430752
Decimal
11,153,898
Country
US
Tail
N756SG
Type
T206
No current signal · last broadcast Jul 25, 22:55 UTC
Flights observed
68
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 22:55 UTC

Last known position

Most recent position reported by Mode-S AA31EA.

Country allocation

The ICAO 24-bit address AA31EA 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
N756SG - 68 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 N756SG - Jul 25, 22:30 UTCJul 25, 22:55 UTC25m
2026-07-25 N756SG - Jul 25, 13:50 UTCJul 25, 14:25 UTC35m
2026-07-25 N756SG - Jul 25, 12:10 UTCJul 25, 12:30 UTC20m
2026-07-24 N756SG - Jul 24, 21:00 UTCJul 24, 21:10 UTC10m
2026-07-24 N756SG - Jul 24, 14:20 UTCJul 24, 14:45 UTC25m
2026-07-24 N756SG - Jul 24, 13:20 UTCJul 24, 13:45 UTC25m
2026-07-23 N756SG - Jul 23, 19:00 UTCJul 23, 19:25 UTC25m
2026-07-23 N756SG - Jul 23, 17:35 UTCJul 23, 18:25 UTC50m
2026-07-23 N756SG - Jul 23, 13:15 UTCJul 23, 13:45 UTC30m
2026-07-21 N756SG - Jul 21, 18:05 UTCJul 21, 18:30 UTC25m
2026-07-19 N756SG - Jul 19, 22:15 UTCJul 19, 22:55 UTC40m
2026-07-19 N756SG - Jul 19, 18:10 UTCJul 19, 19:05 UTC55m
2026-07-19 N756SG - Jul 19, 14:50 UTCJul 19, 16:00 UTC1h 10m
2026-07-17 N756SG - Jul 17, 15:49 UTCJul 17, 16:15 UTC25m
2026-07-17 N756SG - Jul 17, 14:20 UTCJul 17, 14:39 UTC20m
2026-07-17 N756SG - Jul 17, 12:10 UTCJul 17, 13:25 UTC1h 15m
2026-07-16 N756SG - Jul 16, 17:54 UTCJul 16, 18:25 UTC30m
2026-07-16 N756SG - Jul 16, 15:49 UTCJul 16, 16:40 UTC50m
2026-07-16 N756SG - Jul 16, 13:20 UTCJul 16, 13:54 UTC35m
2026-07-16 N756SG - Jul 16, 12:05 UTCJul 16, 12:44 UTC40m
2026-07-14 N756SG - Jul 14, 15:05 UTCJul 14, 15:15 UTC10m
2026-07-14 N756SG - Jul 14, 14:10 UTCJul 14, 14:25 UTC15m
2026-07-13 N756SG - Jul 13, 16:55 UTCJul 13, 17:15 UTC20m
2026-07-13 N756SG - Jul 13, 13:40 UTCJul 13, 13:50 UTC10m
2026-07-13 N756SG - Jul 13, 12:20 UTCJul 13, 12:55 UTC35m
2026-07-12 N756SG - Jul 12, 19:10 UTCJul 12, 19:30 UTC20m
2026-07-12 N756SG - Jul 12, 17:40 UTCJul 12, 17:50 UTC10m
2026-07-12 N756SG - Jul 12, 13:05 UTCJul 12, 14:35 UTC1h 30m
2026-07-09 N756SG - Jul 9, 19:20 UTCJul 9, 20:00 UTC40m
2026-07-09 N756SG - Jul 9, 13:15 UTCJul 9, 13:40 UTC25m
2026-07-06 N756SG - Jul 6, 20:45 UTCJul 6, 21:15 UTC30m
2026-07-06 N756SG - Jul 6, 14:25 UTCJul 6, 14:35 UTC10m
2026-07-04 N756SG - Jul 4, 16:25 UTCJul 4, 16:40 UTC15m
2026-07-04 N756SG - Jul 4, 15:15 UTCJul 4, 15:45 UTC30m
2026-07-03 N756SG - Jul 3, 13:25 UTCJul 3, 13:50 UTC25m
2026-07-02 N756SG - Jul 2, 20:15 UTCJul 2, 20:40 UTC25m
2026-07-02 N756SG - Jul 2, 14:45 UTCJul 2, 15:10 UTC25m
2026-07-02 N756SG - Jul 2, 12:10 UTCJul 2, 12:20 UTC10m
2026-07-01 N756SG - Jul 1, 15:15 UTCJul 1, 15:35 UTC20m
2026-07-01 N756SG - Jul 1, 13:55 UTCJul 1, 14:30 UTC35m
2026-06-30 N756SG - Jun 30, 18:45 UTCJun 30, 19:00 UTC15m
2026-06-29 N756SG - Jun 29, 17:59 UTCJun 29, 19:54 UTC1h 55m
2026-06-29 N756SG - Jun 29, 12:14 UTCJun 29, 15:00 UTC2h 45m
2026-06-27 N756SG - Jun 27, 16:44 UTCJun 27, 17:09 UTC25m
2026-06-24 N756SG - Jun 24, 21:24 UTCJun 24, 22:04 UTC40m
2026-06-24 N756SG - Jun 24, 20:24 UTCJun 24, 20:44 UTC20m
2026-06-24 N756SG - Jun 24, 12:04 UTCJun 24, 12:54 UTC50m
2026-06-24 N756SG - Jun 24, 11:14 UTCJun 24, 11:34 UTC20m
2026-06-18 N756SG - Jun 18, 13:35 UTCJun 18, 13:45 UTC10m
2026-06-17 N756SG - Jun 17, 18:35 UTCJun 17, 19:05 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 N756SG page for operator, model, and routing details .

Mode-S AA31EA frequently asked

What is Mode-S code AA31EA?
AA31EA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N756SG.
Where is Mode-S AA31EA registered?
Mode-S code AA31EA 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 AA31EA broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 22:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA31EA, octal 52430752, decimal 11,153,898.
What flights does AA31EA operate?
Mode-S AA31EA has broadcast 1 distinct callsign, including N756SG.