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sensors Mode-S transponder

AA349D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N757FX · CESSNA 408 SkyCourier · operated by FEDERAL EXPRESS CORPORATION

Hex
AA349D
Octal
52432235
Decimal
11,154,589
Country
US
Tail
N757FX
Type
C408
No current signal · last broadcast Jul 25, 01:00 UTC
Flights observed
108
Distinct callsigns
10
Country
US
Last broadcast
Jul 25, 01:00 UTC

Last known position

Most recent position reported by Mode-S AA349D.

Country allocation

The ICAO 24-bit address AA349D 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 10 distinct

Callsign Airline Flights Last seen
CFS7658 Empire Airlines 32 2026-07-24
CFS8658 - 24 2026-07-24
CFS8204 - 16 2026-07-03
CFS7255 - 16 2026-07-04
CFS408 Empire Airlines 7 2026-06-25
CFS7204 - 5 2026-06-29
CFS4204 - 5 2026-06-29
CFS8731 - 1 2026-04-14
CFS4731 - 1 2026-04-14
CFS204 Empire Airlines 1 2026-04-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 CFS7658 CIC → SMF Jul 24, 23:35 UTCJul 25, 00:55 UTC1h 20m
2026-07-24 CFS8658 - Jul 24, 14:30 UTCJul 24, 15:10 UTC40m
2026-07-24 CFS7658 CIC → SMF Jul 24, 00:40 UTCJul 24, 01:00 UTC20m
2026-07-23 CFS7658 CIC → SMF Jul 23, 23:30 UTCJul 24, 00:00 UTC30m
2026-07-23 CFS8658 - Jul 23, 14:35 UTCJul 23, 15:20 UTC45m
2026-07-23 CFS7658 CIC → SMF Jul 23, 00:40 UTCJul 23, 01:00 UTC20m
2026-07-22 CFS7658 CIC → SMF Jul 22, 23:15 UTCJul 22, 23:45 UTC30m
2026-07-22 CFS8658 - Jul 22, 16:10 UTCJul 22, 16:45 UTC35m
2026-07-22 CFS7658 CIC → SMF Jul 22, 00:45 UTCJul 22, 01:10 UTC25m
2026-07-21 CFS7658 CIC → SMF Jul 21, 23:30 UTCJul 22, 00:00 UTC30m
2026-07-21 CFS8658 - Jul 21, 15:35 UTCJul 21, 16:20 UTC45m
2026-07-21 CFS7658 CIC → SMF Jul 21, 00:30 UTCJul 21, 00:50 UTC20m
2026-07-20 CFS7658 CIC → SMF Jul 20, 23:10 UTCJul 20, 23:35 UTC25m
2026-07-20 CFS8658 - Jul 20, 13:35 UTCJul 20, 14:20 UTC45m
2026-07-17 CFS7658 CIC → SMF Jul 17, 23:35 UTCJul 18, 01:00 UTC1h 25m
2026-07-17 CFS8658 - Jul 17, 14:24 UTCJul 17, 15:05 UTC40m
2026-07-17 CFS7658 - Jul 17, 00:35 UTCJul 17, 00:55 UTC20m
2026-07-16 CFS7658 - Jul 16, 23:25 UTCJul 16, 23:55 UTC30m
2026-07-16 CFS8658 - Jul 16, 15:19 UTCJul 16, 16:00 UTC40m
2026-07-15 CFS7658 - Jul 15, 23:55 UTCJul 16, 01:05 UTC1h 10m
2026-07-15 CFS8658 - Jul 15, 15:25 UTCJul 15, 16:05 UTC40m
2026-07-15 CFS7658 - Jul 15, 00:45 UTCJul 15, 01:05 UTC20m
2026-07-14 CFS7658 - Jul 14, 23:50 UTCJul 15, 00:15 UTC25m
2026-07-14 CFS8658 - Jul 14, 20:25 UTCJul 14, 20:40 UTC15m
2026-07-14 CFS8658 - Jul 14, 17:40 UTCJul 14, 17:50 UTC10m
2026-07-14 CFS8658 - Jul 14, 15:10 UTCJul 14, 15:50 UTC40m
2026-07-14 CFS7658 - Jul 14, 00:40 UTCJul 14, 01:00 UTC20m
2026-07-13 CFS7658 - Jul 13, 23:15 UTCJul 13, 23:40 UTC25m
2026-07-13 CFS8658 - Jul 13, 18:00 UTCJul 13, 18:15 UTC15m
2026-07-13 CFS8658 - Jul 13, 16:55 UTCJul 13, 17:10 UTC15m
2026-07-13 CFS8658 - Jul 13, 14:10 UTCJul 13, 14:55 UTC45m
2026-07-11 CFS7658 - Jul 11, 00:35 UTCJul 11, 01:00 UTC25m
2026-07-10 CFS7658 - Jul 10, 23:20 UTCJul 10, 23:50 UTC30m
2026-07-10 CFS8658 - Jul 10, 15:30 UTCJul 10, 16:10 UTC40m
2026-07-09 CFS7658 - Jul 9, 23:45 UTCJul 10, 01:00 UTC1h 15m
2026-07-09 CFS8658 - Jul 9, 16:10 UTCJul 9, 16:55 UTC45m
2026-07-08 CFS7658 - Jul 8, 23:50 UTCJul 9, 01:05 UTC1h 15m
2026-07-08 CFS8658 - Jul 8, 16:05 UTCJul 8, 16:50 UTC45m
2026-07-08 CFS7658 - Jul 8, 00:40 UTCJul 8, 01:05 UTC25m
2026-07-07 CFS7658 - Jul 7, 23:40 UTCJul 8, 00:05 UTC25m
2026-07-07 CFS8658 - Jul 7, 15:40 UTCJul 7, 16:20 UTC40m
2026-07-07 CFS7658 - Jul 7, 00:40 UTCJul 7, 01:05 UTC25m
2026-07-06 CFS7658 - Jul 6, 23:20 UTCJul 6, 23:50 UTC30m
2026-07-06 CFS8658 - Jul 6, 13:30 UTCJul 6, 14:10 UTC40m
2026-07-04 CFS7255 RDD → SMF Jul 4, 00:35 UTCJul 4, 01:10 UTC35m
2026-07-03 CFS8204 SMF → RDD Jul 3, 15:10 UTCJul 3, 15:50 UTC40m
2026-07-03 CFS7255 RDD → SMF Jul 3, 01:30 UTCJul 3, 02:05 UTC35m
2026-07-02 CFS8204 SMF → RDD Jul 2, 15:35 UTCJul 2, 16:10 UTC35m
2026-07-02 CFS7255 RDD → SMF Jul 2, 01:25 UTCJul 2, 02:05 UTC40m
2026-07-01 CFS8204 SMF → RDD Jul 1, 16:15 UTCJul 1, 16:55 UTC40m

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 N757FX page for operator, model, and routing details .

Mode-S AA349D frequently asked

What is Mode-S code AA349D?
AA349D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N757FX.
Where is Mode-S AA349D registered?
Mode-S code AA349D 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 AA349D broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 01:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA349D, octal 52432235, decimal 11,154,589.
What flights does AA349D operate?
Mode-S AA349D has broadcast 10 distinct callsigns, including CFS7658, CFS8658, CFS8204, CFS7255, CFS408.