Apparatus

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sensors Mode-S transponder

A28CAE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2631S · CESSNA 310 · operated by ASPLUNDH ERIC P

Hex
A28CAE
Octal
50506256
Decimal
10,652,846
Country
US
Tail
N2631S
Type
C310
No current signal · last broadcast Jul 23, 15:10 UTC
Flights observed
53
Distinct callsigns
1
Country
US
Last broadcast
Jul 23, 15:10 UTC

Last known position

Most recent position reported by Mode-S A28CAE.

Country allocation

The ICAO 24-bit address A28CAE 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
N2631S - 53 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 N2631S - Jul 23, 14:45 UTCJul 23, 15:10 UTC25m
2026-07-23 N2631S - Jul 23, 11:50 UTCJul 23, 12:35 UTC45m
2026-07-15 N2631S - Jul 15, 13:40 UTCJul 15, 14:10 UTC30m
2026-07-09 N2631S - Jul 9, 20:35 UTCJul 9, 21:05 UTC30m
2026-07-07 N2631S - Jul 7, 18:50 UTCJul 7, 19:15 UTC25m
2026-07-03 N2631S - Jul 3, 20:05 UTCJul 3, 20:30 UTC25m
2026-07-02 N2631S - Jul 2, 21:50 UTCJul 2, 22:15 UTC25m
2026-07-02 N2631S - Jul 2, 18:35 UTCJul 2, 19:45 UTC1h 10m
2026-06-28 N2631S - Jun 28, 23:44 UTCJun 29, 00:20 UTC35m
2026-06-28 N2631S - Jun 28, 13:10 UTCJun 28, 13:55 UTC45m
2026-06-24 N2631S - Jun 24, 18:05 UTCJun 24, 19:24 UTC1h 20m
2026-06-24 N2631S - Jun 24, 14:45 UTCJun 24, 16:14 UTC1h 30m
2026-06-23 N2631S - Jun 23, 23:05 UTCJun 23, 23:44 UTC40m
2026-06-17 N2631S - Jun 17, 16:30 UTCJun 17, 16:55 UTC25m
2026-06-14 N2631S - Jun 14, 12:25 UTCJun 14, 12:55 UTC30m
2026-06-13 N2631S - Jun 13, 13:15 UTCJun 13, 13:40 UTC25m
2026-06-10 N2631S - Jun 10, 21:00 UTCJun 10, 21:40 UTC40m
2026-06-09 N2631S - Jun 9, 14:50 UTCJun 9, 15:15 UTC25m
2026-06-06 N2631S - Jun 6, 12:00 UTCJun 6, 12:30 UTC30m
2026-06-02 N2631S - Jun 2, 21:20 UTCJun 2, 21:50 UTC30m
2026-06-02 N2631S - Jun 2, 16:50 UTCJun 2, 17:15 UTC25m
2026-06-01 N2631S - Jun 1, 17:40 UTCJun 1, 17:55 UTC15m
2026-06-01 N2631S - Jun 1, 16:10 UTCJun 1, 16:20 UTC10m
2026-05-31 N2631S - May 31, 20:55 UTCMay 31, 21:20 UTC25m
2026-05-29 N2631S - May 29, 23:50 UTCMay 30, 00:15 UTC25m
2026-05-29 N2631S - May 29, 21:05 UTCMay 29, 21:40 UTC35m
2026-05-29 N2631S - May 29, 19:55 UTCMay 29, 20:30 UTC35m
2026-05-29 N2631S - May 29, 15:30 UTCMay 29, 16:15 UTC45m
2026-05-28 N2631S - May 28, 21:05 UTCMay 28, 21:35 UTC30m
2026-05-28 N2631S - May 28, 14:15 UTCMay 28, 14:40 UTC25m
2026-05-22 N2631S - May 22, 20:25 UTCMay 22, 20:55 UTC30m
2026-05-22 N2631S - May 22, 13:20 UTCMay 22, 13:45 UTC25m
2026-05-20 N2631S - May 20, 23:00 UTCMay 20, 23:35 UTC35m
2026-05-19 N2631S - May 19, 18:50 UTCMay 19, 19:20 UTC30m
2026-05-19 N2631S - May 19, 00:05 UTCMay 19, 00:30 UTC25m
2026-05-16 N2631S - May 16, 23:15 UTCMay 16, 23:45 UTC30m
2026-05-15 N2631S - May 15, 19:05 UTCMay 15, 19:20 UTC15m
2026-05-15 N2631S - May 15, 14:50 UTCMay 15, 15:50 UTC1h 0m
2026-05-14 N2631S - May 14, 21:55 UTCMay 14, 22:20 UTC25m
2026-05-11 N2631S - May 11, 15:40 UTCMay 11, 15:55 UTC15m
2026-05-11 N2631S - May 11, 13:25 UTCMay 11, 13:35 UTC10m
2026-05-05 N2631S - May 5, 20:50 UTCMay 5, 21:20 UTC30m
2026-05-05 N2631S - May 5, 13:30 UTCMay 5, 13:50 UTC20m
2026-05-04 N2631S - May 4, 21:15 UTCMay 4, 21:45 UTC30m
2026-05-04 N2631S - May 4, 11:15 UTCMay 4, 11:40 UTC25m
2026-04-29 N2631S - Apr 29, 20:25 UTCApr 29, 20:55 UTC30m
2026-04-28 N2631S - Apr 28, 18:45 UTCApr 28, 19:10 UTC25m
2026-04-28 N2631S - Apr 28, 13:00 UTCApr 28, 13:30 UTC30m
2026-04-26 N2631S - Apr 26, 17:30 UTCApr 26, 18:10 UTC40m
2026-04-24 N2631S - Apr 24, 23:45 UTCApr 25, 00:10 UTC25m

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 N2631S page for operator, model, and routing details .

Mode-S A28CAE frequently asked

What is Mode-S code A28CAE?
A28CAE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2631S.
Where is Mode-S A28CAE registered?
Mode-S code A28CAE 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 A28CAE broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 15:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A28CAE, octal 50506256, decimal 10,652,846.
What flights does A28CAE operate?
Mode-S A28CAE has broadcast 1 distinct callsign, including N2631S.