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sensors Mode-S transponder

AA9C3E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N783FX · operated by FEDERAL EXPRESS CORP

Hex
AA9C3E
Octal
52516076
Decimal
11,181,118
Country
US
Tail
N783FX
No current signal · last broadcast Jul 24, 00:20 UTC
Flights observed
97
Distinct callsigns
8
Country
US
Last broadcast
Jul 24, 00:20 UTC

Last known position

Most recent position reported by Mode-S AA9C3E.

Country allocation

The ICAO 24-bit address AA9C3E 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 8 distinct

Callsign Airline Flights Last seen
CFS4804 Empire Airlines 24 2026-07-23
CFS7744 - 22 2026-07-23
CFS7804 Empire Airlines 20 2026-07-23
CFS8737 Empire Airlines 18 2026-07-22
CFS4744 - 4 2026-07-20
CFS408 Empire Airlines 4 2026-06-19
CFS104 - 4 2026-06-12
CFS4826 Empire Airlines 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 CFS7804 PSC → GEG Jul 23, 23:40 UTCJul 24, 00:20 UTC40m
2026-07-23 CFS4804 YKM → PSC Jul 23, 21:30 UTCJul 23, 22:00 UTC30m
2026-07-23 CFS7744 - Jul 23, 00:05 UTCJul 23, 00:25 UTC20m
2026-07-22 CFS8737 GEG → YKM Jul 22, 15:00 UTCJul 22, 15:40 UTC40m
2026-07-22 CFS7744 - Jul 22, 00:15 UTCJul 22, 00:30 UTC15m
2026-07-21 CFS8737 GEG → YKM Jul 21, 14:45 UTCJul 21, 15:25 UTC40m
2026-07-21 CFS7744 - Jul 21, 00:20 UTCJul 21, 00:35 UTC15m
2026-07-20 CFS4744 - Jul 20, 20:55 UTCJul 20, 21:35 UTC40m
2026-07-18 CFS7744 - Jul 18, 00:10 UTCJul 18, 00:25 UTC15m
2026-07-17 CFS8737 - Jul 17, 13:50 UTCJul 17, 14:24 UTC35m
2026-07-17 CFS7744 - Jul 17, 00:10 UTCJul 17, 00:25 UTC15m
2026-07-16 CFS8737 - Jul 16, 14:05 UTCJul 16, 14:45 UTC40m
2026-07-16 CFS7744 - Jul 16, 00:15 UTCJul 16, 00:25 UTC10m
2026-07-15 CFS8737 - Jul 15, 14:35 UTCJul 15, 15:15 UTC40m
2026-07-15 CFS7744 - Jul 15, 00:15 UTCJul 15, 00:30 UTC15m
2026-07-14 CFS8737 - Jul 14, 14:50 UTCJul 14, 15:25 UTC35m
2026-07-14 CFS7744 - Jul 14, 00:15 UTCJul 14, 00:35 UTC20m
2026-07-13 CFS4744 - Jul 13, 21:00 UTCJul 13, 21:40 UTC40m
2026-07-11 CFS7744 - Jul 11, 00:05 UTCJul 11, 00:30 UTC25m
2026-07-10 CFS8737 - Jul 10, 14:35 UTCJul 10, 15:15 UTC40m
2026-07-10 CFS7744 - Jul 10, 00:10 UTCJul 10, 00:35 UTC25m
2026-07-09 CFS8737 - Jul 9, 14:30 UTCJul 9, 15:00 UTC30m
2026-07-09 CFS7744 - Jul 9, 00:10 UTCJul 9, 00:35 UTC25m
2026-07-08 CFS8737 - Jul 8, 14:25 UTCJul 8, 15:00 UTC35m
2026-07-08 CFS7744 - Jul 8, 00:15 UTCJul 8, 00:35 UTC20m
2026-07-07 CFS8737 - Jul 7, 15:05 UTCJul 7, 15:45 UTC40m
2026-07-07 CFS7744 - Jul 7, 00:15 UTCJul 7, 00:40 UTC25m
2026-07-06 CFS4744 - Jul 6, 21:00 UTCJul 6, 21:35 UTC35m
2026-07-04 CFS7744 - Jul 4, 00:00 UTCJul 4, 00:25 UTC25m
2026-07-03 CFS8737 - Jul 3, 14:10 UTCJul 3, 14:45 UTC35m
2026-07-02 CFS7804 - Jul 2, 23:35 UTCJul 3, 00:05 UTC30m
2026-07-02 CFS4804 - Jul 2, 21:15 UTCJul 2, 21:40 UTC25m
2026-07-01 CFS7804 - Jul 1, 23:35 UTCJul 2, 00:05 UTC30m
2026-07-01 CFS4804 - Jul 1, 21:05 UTCJul 1, 21:30 UTC25m
2026-07-01 CFS7744 - Jul 1, 00:20 UTCJul 1, 00:40 UTC20m
2026-06-30 CFS8737 - Jun 30, 16:30 UTCJun 30, 17:05 UTC35m
2026-06-30 CFS7804 - Jun 30, 00:00 UTCJun 30, 00:25 UTC25m
2026-06-29 CFS4804 - Jun 29, 20:44 UTCJun 29, 21:05 UTC20m
2026-06-25 CFS7804 - Jun 25, 23:39 UTCJun 26, 00:10 UTC30m
2026-06-25 CFS4804 - Jun 25, 21:15 UTCJun 25, 21:40 UTC25m
2026-06-24 CFS7804 - Jun 24, 23:29 UTCJun 25, 00:05 UTC35m
2026-06-24 CFS4804 - Jun 24, 21:04 UTCJun 24, 21:29 UTC25m
2026-06-23 CFS7804 - Jun 23, 23:29 UTCJun 23, 23:59 UTC30m
2026-06-23 CFS4804 - Jun 23, 20:54 UTCJun 23, 21:24 UTC30m
2026-06-22 CFS7804 - Jun 22, 23:39 UTCJun 23, 00:09 UTC30m
2026-06-22 CFS4804 - Jun 22, 21:19 UTCJun 22, 21:45 UTC25m
2026-06-19 CFS408 SMF → SBA Jun 19, 17:34 UTCJun 19, 18:54 UTC1h 20m
2026-06-19 CFS408 SMF → SBA Jun 19, 16:04 UTCJun 19, 16:44 UTC40m
2026-06-18 CFS7804 - Jun 18, 23:35 UTCJun 19, 00:05 UTC30m
2026-06-18 CFS4804 - Jun 18, 20:45 UTCJun 18, 21:30 UTC45m

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 N783FX page for operator, model, and routing details .

Mode-S AA9C3E frequently asked

What is Mode-S code AA9C3E?
AA9C3E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N783FX.
Where is Mode-S AA9C3E registered?
Mode-S code AA9C3E 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 AA9C3E broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 00:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA9C3E, octal 52516076, decimal 11,181,118.
What flights does AA9C3E operate?
Mode-S AA9C3E has broadcast 8 distinct callsigns, including CFS4804, CFS7744, CFS7804, CFS8737, CFS4744.