Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A56C9F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N449FX · EMBRAER EMB545 Praetor 500 · operated by FLEXJET LLC, DELTA ECHO AVIATION LLC, C SKY LLC, C3 TRAVEL LLC, NEVOD LLC, CONSTRUCTION TRAVEL LLC

Hex
A56C9F
Octal
51266237
Decimal
10,841,247
Country
US
Tail
N449FX
Type
E545
No current signal · last broadcast 9h ago
Flights observed
208
Distinct callsigns
1
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A56C9F.

Country allocation

The ICAO 24-bit address A56C9F 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
LXJ449 - 208 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 LXJ449 - Jul 13, 17:45 UTCJul 13, 21:50 UTC4h 5m
2026-07-13 LXJ449 - Jul 13, 15:45 UTCJul 13, 16:45 UTC1h 0m
2026-07-13 LXJ449 - Jul 13, 13:45 UTCJul 13, 14:55 UTC1h 10m
2026-07-12 LXJ449 - Jul 12, 21:20 UTCJul 12, 22:45 UTC1h 25m
2026-07-12 LXJ449 - Jul 12, 19:40 UTCJul 12, 20:20 UTC40m
2026-07-12 LXJ449 - Jul 12, 17:15 UTCJul 12, 17:35 UTC20m
2026-07-12 LXJ449 - Jul 12, 15:30 UTCJul 12, 16:15 UTC45m
2026-07-12 LXJ449 - Jul 12, 14:15 UTCJul 12, 14:50 UTC35m
2026-07-11 LXJ449 - Jul 11, 15:05 UTCJul 11, 16:15 UTC1h 10m
2026-07-11 LXJ449 - Jul 11, 13:00 UTCJul 11, 13:50 UTC50m
2026-07-10 LXJ449 - Jul 10, 16:35 UTCJul 10, 16:50 UTC15m
2026-07-10 LXJ449 - Jul 10, 14:35 UTCJul 10, 15:10 UTC35m
2026-07-09 LXJ449 - Jul 9, 22:50 UTCJul 10, 01:00 UTC2h 10m
2026-07-09 LXJ449 - Jul 9, 20:10 UTCJul 9, 22:05 UTC1h 55m
2026-07-06 LXJ449 - Jul 6, 14:25 UTCJul 6, 16:50 UTC2h 25m
2026-07-05 LXJ449 - Jul 5, 20:30 UTCJul 5, 22:15 UTC1h 45m
2026-07-05 LXJ449 - Jul 5, 15:55 UTCJul 5, 18:35 UTC2h 40m
2026-07-05 LXJ449 - Jul 5, 13:25 UTCJul 5, 14:50 UTC1h 25m
2026-07-03 LXJ449 - Jul 3, 17:30 UTCJul 3, 17:50 UTC20m
2026-06-30 LXJ449 - Jun 30, 17:00 UTCJun 30, 17:30 UTC30m
2026-06-30 LXJ449 - Jun 30, 13:50 UTCJun 30, 15:10 UTC1h 20m
2026-06-30 LXJ449 - Jun 30, 12:20 UTCJun 30, 12:30 UTC10m
2026-06-29 LXJ449 - Jun 29, 18:55 UTCJun 29, 20:54 UTC2h 0m
2026-06-29 LXJ449 - Jun 29, 16:44 UTCJun 29, 18:05 UTC1h 20m
2026-06-29 LXJ449 - Jun 29, 12:09 UTCJun 29, 14:25 UTC2h 15m
2026-06-28 LXJ449 - Jun 28, 17:55 UTCJun 28, 19:25 UTC1h 30m
2026-06-28 LXJ449 - Jun 28, 13:34 UTCJun 28, 14:19 UTC45m
2026-06-28 LXJ449 - Jun 28, 11:25 UTCJun 28, 12:05 UTC40m
2026-06-27 LXJ449 - Jun 27, 18:24 UTCJun 27, 19:05 UTC40m
2026-06-26 LXJ449 PWA → DAL Jun 26, 20:55 UTCJun 26, 21:39 UTC45m
2026-06-25 LXJ449 - Jun 25, 23:24 UTCJun 26, 01:50 UTC2h 25m
2026-06-25 LXJ449 - Jun 25, 21:10 UTCJun 25, 21:25 UTC15m
2026-06-25 LXJ449 - Jun 25, 18:19 UTCJun 25, 19:54 UTC1h 35m
2026-06-25 LXJ449 - Jun 25, 14:04 UTCJun 25, 17:09 UTC3h 5m
2026-06-25 LXJ449 - Jun 25, 00:05 UTCJun 25, 00:59 UTC55m
2026-06-24 LXJ449 - Jun 24, 21:24 UTCJun 24, 21:54 UTC30m
2026-06-24 LXJ449 TOL → YWG Jun 24, 18:20 UTCJun 24, 20:30 UTC2h 10m
2026-06-24 LXJ449 TEB → TOL Jun 24, 15:14 UTCJun 24, 16:40 UTC1h 25m
2026-06-24 LXJ449 - Jun 24, 01:14 UTCJun 24, 02:05 UTC50m
2026-06-23 LXJ449 - Jun 23, 22:10 UTCJun 23, 23:05 UTC55m
2026-06-23 LXJ449 - Jun 23, 17:54 UTCJun 23, 18:29 UTC35m
2026-06-22 LXJ449 - Jun 22, 20:14 UTCJun 22, 23:50 UTC3h 35m
2026-06-22 LXJ449 SJC → SJC Jun 22, 17:50 UTCJun 22, 18:09 UTC20m
2026-06-22 LXJ449 - Jun 22, 02:04 UTCJun 22, 02:45 UTC40m
2026-06-21 LXJ449 - Jun 21, 23:59 UTCJun 22, 00:14 UTC15m
2026-06-21 LXJ449 - Jun 21, 17:45 UTCJun 21, 22:20 UTC4h 35m
2026-06-20 LXJ449 LEB → APF Jun 20, 23:45 UTCJun 21, 02:45 UTC3h 0m
2026-06-20 LXJ449 - Jun 20, 22:10 UTCJun 20, 22:35 UTC25m
2026-06-20 LXJ449 BOS → BOS Jun 20, 21:44 UTCJun 20, 21:49 UTC5m
2026-06-20 LXJ449 - Jun 20, 20:20 UTCJun 20, 20:45 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 N449FX page for operator, model, and routing details .

Mode-S A56C9F frequently asked

What is Mode-S code A56C9F?
A56C9F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N449FX.
Where is Mode-S A56C9F registered?
Mode-S code A56C9F 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 A56C9F broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A56C9F, octal 51266237, decimal 10,841,247.
What flights does A56C9F operate?
Mode-S A56C9F has broadcast 1 distinct callsign, including LXJ449.