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sensors Mode-S transponder

A6FA94

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N549NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A6FA94
Octal
51575224
Decimal
10,943,124
Country
US
Tail
N549NN
Type
CRJ9
No current signal · last broadcast Jul 26, 22:05 UTC
Flights observed
706
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:05 UTC

Last known position

Most recent position reported by Mode-S A6FA94.

Country allocation

The ICAO 24-bit address A6FA94 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 20 distinct

Callsign Airline Flights Last seen
JIA5480 - 12 2026-07-03
JIA5304 PSA Airlines 11 2026-05-25
JIA5271 - 8 2026-07-19
JIA5650 PSA Airlines 7 2026-06-03
JIA5240 - 7 2026-07-15
JIA5018 - 7 2026-06-26
JIA5672 - 6 2026-07-03
JIA5626 PSA Airlines 6 2026-05-12
JIA5622 PSA Airlines 6 2026-07-19
JIA5616 PSA Airlines 6 2026-05-29
JIA5504 - 6 2026-06-23
JIA5358 PSA Airlines 6 2026-07-23
JIA5327 - 6 2026-06-27
JIA5279 PSA Airlines 6 2026-06-11
JIA5069 PSA Airlines 6 2026-05-25
JIA5647 PSA Airlines 5 2026-07-20
JIA5640 PSA Airlines 5 2026-06-01
JIA5631 PSA Airlines 5 2026-07-26
JIA5610 - 5 2026-07-01
JIA5593 - 5 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA563X DFW → MAF Jul 26, 20:45 UTCJul 26, 22:05 UTC1h 20m
2026-07-26 JIA5631 BTV → PHL Jul 26, 18:25 UTCJul 26, 19:45 UTC1h 20m
2026-07-26 JIA5621 CVG → PHL Jul 26, 15:30 UTCJul 26, 17:05 UTC1h 35m
2026-07-26 JIA5621 CVG → PHL Jul 26, 12:55 UTCJul 26, 14:20 UTC1h 25m
2026-07-26 JIA5438 PHL → GSP Jul 26, 09:55 UTCJul 26, 11:00 UTC1h 5m
2026-07-26 JIA5438 PHL → GSP Jul 26, 09:53 UTCJul 26, 11:07 UTC1h 14m
2026-07-26 JIA5583 PHL → CVG Jul 26, 01:10 UTCJul 26, 02:30 UTC1h 20m
2026-07-25 JIA5406 CHA → CLT Jul 25, 23:30 UTCJul 25, 23:55 UTC25m
2026-07-25 JIA5308 CMH → DCA Jul 25, 18:00 UTCJul 25, 19:30 UTC1h 30m
2026-07-25 JIA5308 CMH → DCA Jul 25, 17:54 UTCJul 25, 19:32 UTC1h 38m
2026-07-25 JIA5308 CMH → DCA Jul 25, 15:10 UTCJul 25, 16:55 UTC1h 45m
2026-07-25 JIA5424 PNS → DCA Jul 25, 11:10 UTCJul 25, 13:00 UTC1h 50m
2026-07-25 JIA5510 CLT → CMH Jul 25, 04:25 UTCJul 25, 05:40 UTC1h 15m
2026-07-24 JIA5355 DCA → BGR Jul 24, 22:30 UTCJul 25, 00:00 UTC1h 30m
2026-07-24 JIA5355 DCA → BGR Jul 24, 20:10 UTCJul 24, 21:35 UTC1h 25m
2026-07-24 JIA5103 CLT → LEX Jul 24, 16:45 UTCJul 24, 18:35 UTC1h 50m
2026-07-24 JIA5103 CLT → LEX Jul 24, 13:50 UTCJul 24, 15:50 UTC2h 0m
2026-07-24 JIA5372 MSY → PHL Jul 24, 11:10 UTCJul 24, 12:04 UTC54m
2026-07-24 JIA5398 PWM → DCA Jul 24, 05:20 UTCJul 24, 06:15 UTC55m
2026-07-24 JIA5408 STL → DCA Jul 24, 00:40 UTCJul 24, 02:30 UTC1h 50m
2026-07-23 JIA5408 STL → DCA Jul 23, 21:55 UTCJul 23, 23:35 UTC1h 40m
2026-07-23 JIA5109 HSV → DCA Jul 23, 18:20 UTCJul 23, 20:35 UTC2h 15m
2026-07-23 JIA5109 HSV → DCA Jul 23, 15:10 UTCJul 23, 17:10 UTC2h 0m
2026-07-23 JIA5356 LIT → CLT Jul 23, 13:20 UTCJul 23, 13:50 UTC30m
2026-07-23 JIA5356 LIT → CLT Jul 23, 12:10 UTCJul 23, 13:15 UTC1h 5m
2026-07-23 JIA5358 PHL → MSP Jul 23, 03:00 UTCJul 23, 04:20 UTC1h 20m
2026-07-23 JIA5358 PHL → MSP Jul 23, 02:59 UTCJul 23, 04:22 UTC1h 23m
2026-07-23 JIA5408 STL → DCA Jul 23, 00:10 UTCJul 23, 01:50 UTC1h 40m
2026-07-22 JIA5408 STL → DCA Jul 22, 21:45 UTCJul 22, 23:25 UTC1h 40m
2026-07-22 JIA5163 - Jul 22, 17:40 UTCJul 22, 19:45 UTC2h 5m
2026-07-22 JIA5163 - Jul 22, 14:40 UTCJul 22, 16:30 UTC1h 50m
2026-07-22 JIA5425 - Jul 22, 11:15 UTCJul 22, 13:05 UTC1h 50m
2026-07-21 JIA5453 CLT → PNS Jul 21, 23:50 UTCJul 22, 01:35 UTC1h 45m
2026-07-21 JIA5420 - Jul 21, 20:55 UTCJul 21, 21:45 UTC50m
2026-07-21 JIA5420 TUL → DFW Jul 21, 20:54 UTCJul 21, 21:39 UTC45m
2026-07-21 JIA5420 - Jul 21, 19:30 UTCJul 21, 20:10 UTC40m
2026-07-21 JIA5136 - Jul 21, 16:20 UTCJul 21, 16:55 UTC35m
2026-07-21 JIA5136 SHV → DFW Jul 21, 16:14 UTCJul 21, 16:57 UTC43m
2026-07-21 JIA5624 PHL → MCI Jul 21, 13:35 UTCJul 21, 15:00 UTC1h 25m
2026-07-21 JIA5624 PHL → MCI Jul 21, 13:29 UTCJul 21, 15:07 UTC1h 38m
2026-07-21 JIA5176 SDF → DCA Jul 21, 10:45 UTCJul 21, 11:30 UTC45m
2026-07-21 JIA5502 - Jul 21, 02:25 UTCJul 21, 03:40 UTC1h 15m
2026-07-20 JIA5647 BUF → PHL Jul 20, 16:55 UTCJul 20, 18:05 UTC1h 10m
2026-07-20 JIA5647 BUF → PHL Jul 20, 14:15 UTCJul 20, 15:20 UTC1h 5m
2026-07-20 JIA5561 DCA → BHM Jul 20, 11:10 UTCJul 20, 12:45 UTC1h 35m
2026-07-20 JIA5561 DCA → BHM Jul 20, 11:09 UTCJul 20, 12:43 UTC1h 34m
2026-07-20 JIA5402 - Jul 20, 02:30 UTCJul 20, 04:15 UTC1h 45m
2026-07-19 JIA5266 - Jul 19, 23:25 UTCJul 20, 01:20 UTC1h 55m
2026-07-19 JIA5266 - Jul 19, 20:35 UTCJul 19, 22:35 UTC2h 0m
2026-07-19 JIA5271 - Jul 19, 17:55 UTCJul 19, 18:40 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 N549NN page for operator, model, and routing details .

Mode-S A6FA94 frequently asked

What is Mode-S code A6FA94?
A6FA94 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N549NN.
Where is Mode-S A6FA94 registered?
Mode-S code A6FA94 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 A6FA94 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6FA94, octal 51575224, decimal 10,943,124.
What flights does A6FA94 operate?
Mode-S A6FA94 has broadcast 20 distinct callsigns, including JIA5480, JIA5304, JIA5271, JIA5650, JIA5240.