sensors Mode-S transponder

A924E4

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N689CM · operated by ODYSSEY AVIATION LLC

Hex
A924E4
Octal
52222344
Decimal
11,085,028
Country
US
Tail
N689CM
No current signal · last broadcast 18h ago
Flights observed
32
Distinct callsigns
1
Country
US
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S A924E4.

Country allocation

The ICAO 24-bit address A924E4 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
N689CM - 32 2026-06-18

Recent flights last 32

DateFlightRouteTakeoffLandingDuration
2026-06-18 N689CM - Jun 18, 12:05 UTCJun 18, 13:55 UTC1h 50m
2026-06-16 N689CM - Jun 16, 20:10 UTCJun 16, 20:35 UTC25m
2026-06-16 N689CM - Jun 16, 00:40 UTCJun 16, 03:35 UTC2h 55m
2026-06-15 N689CM - Jun 15, 20:10 UTCJun 15, 23:04 UTC2h 55m
2026-06-10 N689CM - Jun 10, 14:35 UTCJun 10, 21:35 UTC7h 0m
2026-06-05 N689CM - Jun 5, 13:25 UTCJun 5, 13:50 UTC25m
2026-06-05 N689CM - Jun 5, 12:45 UTCJun 5, 13:10 UTC25m
2026-06-04 N689CM - Jun 4, 15:15 UTCJun 4, 15:40 UTC25m
2026-06-04 N689CM CWA → MSN Jun 4, 14:30 UTCJun 4, 15:00 UTC30m
2026-06-03 N689CM - Jun 3, 16:35 UTCJun 3, 19:25 UTC2h 50m
2026-06-02 N689CM - Jun 2, 19:10 UTCJun 2, 20:55 UTC1h 45m
2026-06-02 N689CM - Jun 2, 15:05 UTCJun 2, 15:45 UTC40m
2026-06-02 N689CM - Jun 2, 12:10 UTCJun 2, 13:10 UTC1h 0m
2026-05-29 N689CM - May 29, 19:40 UTCMay 29, 22:45 UTC3h 5m
2026-05-26 N689CM - May 26, 21:00 UTCMay 26, 22:59 UTC2h 0m
2026-05-26 N689CM - May 26, 19:55 UTCMay 26, 20:24 UTC30m
2026-05-14 N689CM - May 14, 14:01 UTCMay 14, 17:00 UTC3h 0m
2026-05-14 N689CM - May 14, 11:10 UTCMay 14, 13:30 UTC2h 20m
2026-05-13 N689CM - May 13, 17:00 UTCMay 13, 20:35 UTC3h 35m
2026-05-12 N689CM - May 12, 19:10 UTCMay 12, 20:55 UTC1h 45m
2026-05-12 N689CM - May 12, 13:05 UTCMay 12, 13:45 UTC40m
2026-05-11 N689CM - May 11, 13:35 UTCMay 11, 15:00 UTC1h 25m
2026-05-07 N689CM - May 7, 18:05 UTCMay 7, 19:35 UTC1h 30m
2026-05-07 N689CM - May 7, 12:40 UTCMay 7, 14:10 UTC1h 30m
2026-05-01 N689CM - May 1, 14:00 UTCMay 1, 17:10 UTC3h 10m
2026-04-30 N689CM - Apr 30, 16:45 UTCApr 30, 17:40 UTC55m
2026-04-28 N689CM - Apr 28, 13:05 UTCApr 28, 13:55 UTC50m
2026-04-27 N689CM - Apr 27, 15:55 UTCApr 27, 19:35 UTC3h 40m
2026-04-25 N689CM - Apr 25, 18:10 UTCApr 25, 21:50 UTC3h 40m
2026-04-22 N689CM - Apr 22, 16:55 UTCApr 22, 20:20 UTC3h 25m
2026-04-20 N689CM - Apr 20, 14:00 UTCApr 20, 17:25 UTC3h 25m
2026-04-20 N689CM - Apr 20, 13:00 UTCApr 20, 13:30 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 N689CM page for operator, model, and routing details .

Mode-S A924E4 frequently asked

What is Mode-S code A924E4?
A924E4 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N689CM.
Where is Mode-S A924E4 registered?
Mode-S code A924E4 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 A924E4 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A924E4, octal 52222344, decimal 11,085,028.
What flights does A924E4 operate?
Mode-S A924E4 has broadcast 1 distinct callsign, including N689CM.