Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A73AB6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N565NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A73AB6
Octal
51635266
Decimal
10,959,542
Country
US
Tail
N565NN
Type
CRJ9
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
708
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S A73AB6.

Country allocation

The ICAO 24-bit address A73AB6 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
JIA5405 - 9 2026-07-01
JIA5590 - 8 2026-07-16
JIA5407 PSA Airlines 8 2026-07-23
JIA5020 - 8 2026-07-13
JIA5627 - 7 2026-06-25
JIA5543 - 7 2026-07-15
JIA5285 - 7 2026-07-03
JIA5075 PSA Airlines 7 2026-05-02
JIA5618 - 6 2026-07-17
JIA5610 PSA Airlines 6 2026-05-03
JIA5581 PSA Airlines 6 2026-04-23
JIA5413 - 6 2026-07-09
JIA5397 PSA Airlines 6 2026-07-22
JIA5381 PSA Airlines 6 2026-05-12
JIA5288 - 6 2026-07-11
JIA5287 - 6 2026-07-13
JIA5185 PSA Airlines 6 2026-06-04
JIA5147 PSA Airlines 6 2026-04-24
JIA5117 - 6 2026-06-17
JIA5663 PSA Airlines 5 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA5389 BNA → PHL Jul 26, 21:10 UTCJul 26, 21:30 UTC20m
2026-07-26 JIA5349 PHL → PVD Jul 26, 18:20 UTCJul 26, 19:35 UTC1h 15m
2026-07-26 JIA5349 PHL → PVD Jul 26, 16:05 UTCJul 26, 17:15 UTC1h 10m
2026-07-26 JIA5242 BTV → DCA Jul 26, 12:45 UTCJul 26, 14:30 UTC1h 45m
2026-07-25 JIA5435 CLT → IAD Jul 25, 23:10 UTCJul 26, 00:15 UTC1h 5m
2026-07-25 JIA5082 TLH → DCA Jul 25, 18:35 UTCJul 25, 19:30 UTC55m
2026-07-25 JIA5082 TLH → DCA Jul 25, 16:45 UTCJul 25, 17:40 UTC55m
2026-07-25 JIA5426 SYR → PHL Jul 25, 13:20 UTCJul 25, 14:55 UTC1h 35m
2026-07-25 JIA5426 SYR → PHL Jul 25, 13:19 UTCJul 25, 14:54 UTC1h 35m
2026-07-25 JIA5206 SRQ → PHL Jul 25, 01:40 UTCJul 25, 03:20 UTC1h 40m
2026-07-24 JIA5298 DTW → PHL Jul 24, 22:05 UTCJul 24, 23:25 UTC1h 20m
2026-07-24 JIA5298 DTW → PHL Jul 24, 19:55 UTCJul 24, 21:05 UTC1h 10m
2026-07-24 JIA5294 IND → PHL Jul 24, 16:15 UTCJul 24, 18:15 UTC2h 0m
2026-07-24 JIA5294 IND → PHL Jul 24, 13:30 UTCJul 24, 15:15 UTC1h 45m
2026-07-24 JIA5056 DCA → OKC Jul 24, 11:00 UTCJul 24, 11:45 UTC45m
2026-07-24 JIA5263 CLT → CRW Jul 24, 03:10 UTCJul 24, 03:45 UTC35m
2026-07-24 JIA5263 CLT → CRW Jul 24, 03:07 UTCJul 24, 03:44 UTC37m
2026-07-23 JIA5407 DCA → SYR Jul 23, 23:40 UTCJul 24, 01:20 UTC1h 40m
2026-07-23 JIA5407 DCA → SYR Jul 23, 23:39 UTCJul 24, 01:16 UTC1h 37m
2026-07-23 JIA5407 DCA → SYR Jul 23, 20:50 UTCJul 23, 22:35 UTC1h 45m
2026-07-23 JIA5201 - Jul 23, 17:20 UTCJul 23, 19:00 UTC1h 40m
2026-07-23 JIA5410 CID → DCA Jul 23, 15:40 UTCJul 23, 16:10 UTC30m
2026-07-23 JIA5437 PHL → DTW Jul 23, 12:25 UTCJul 23, 14:00 UTC1h 35m
2026-07-23 JIA5437 PHL → DTW Jul 23, 12:24 UTCJul 23, 13:54 UTC1h 30m
2026-07-22 JIA5429 CLT → PNS Jul 22, 22:30 UTCJul 22, 23:45 UTC1h 15m
2026-07-22 JIA5397 BHM → PHL Jul 22, 19:45 UTCJul 22, 20:40 UTC55m
2026-07-22 JIA5397 BHM → PHL Jul 22, 19:44 UTCJul 22, 20:22 UTC38m
2026-07-22 JIA5397 BHM → PHL Jul 22, 17:45 UTCJul 22, 18:45 UTC1h 0m
2026-07-22 JIA5143 PIA → DFW Jul 22, 15:45 UTCJul 22, 16:25 UTC40m
2026-07-22 JIA5143 PIA → DFW Jul 22, 15:41 UTCJul 22, 16:24 UTC43m
2026-07-22 JIA5143 PIA → DFW Jul 22, 13:35 UTCJul 22, 14:30 UTC55m
2026-07-22 JIA5654 BGR → CLT Jul 22, 11:25 UTCJul 22, 11:50 UTC25m
2026-07-17 JIA5618 PHL → GSP Jul 17, 22:56 UTCJul 18, 00:23 UTC1h 27m
2026-07-17 JIA5618 - Jul 17, 23:00 UTCJul 18, 00:25 UTC1h 25m
2026-07-17 JIA5165 - Jul 17, 19:30 UTCJul 17, 21:44 UTC2h 15m
2026-07-17 JIA5165 PHL → DSM Jul 17, 14:50 UTCJul 17, 16:59 UTC2h 10m
2026-07-17 JIA5165 PHL → DSM Jul 17, 14:46 UTCJul 17, 16:58 UTC2h 12m
2026-07-17 JIA5170 DTW → PHL Jul 17, 10:20 UTCJul 17, 11:30 UTC1h 10m
2026-07-17 JIA5169 PHL → DTW Jul 17, 03:25 UTCJul 17, 04:39 UTC1h 15m
2026-07-17 JIA5064 - Jul 17, 00:10 UTCJul 17, 02:05 UTC1h 55m
2026-07-16 JIA5064 - Jul 16, 20:00 UTCJul 16, 21:40 UTC1h 40m
2026-07-16 JIA5461 ATL → PHL Jul 16, 16:44 UTCJul 16, 18:29 UTC1h 45m
2026-07-16 JIA5461 - Jul 16, 13:54 UTCJul 16, 15:25 UTC1h 30m
2026-07-16 JIA5486 - Jul 16, 11:15 UTCJul 16, 12:40 UTC1h 25m
2026-07-16 JIA5483 PHL → MKE Jul 16, 02:35 UTCJul 16, 04:25 UTC1h 50m
2026-07-16 JIA5590 - Jul 16, 00:15 UTCJul 16, 01:10 UTC55m
2026-07-15 JIA5590 PHL → RDU Jul 15, 21:55 UTCJul 15, 22:50 UTC55m
2026-07-15 JIA5543 - Jul 15, 18:15 UTCJul 15, 20:55 UTC2h 40m
2026-07-15 JIA5543 PHL → XNA Jul 15, 15:00 UTCJul 15, 17:10 UTC2h 10m
2026-07-15 JIA5486 - Jul 15, 11:05 UTCJul 15, 12:45 UTC1h 40m

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 N565NN page for operator, model, and routing details .

Mode-S A73AB6 frequently asked

What is Mode-S code A73AB6?
A73AB6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N565NN.
Where is Mode-S A73AB6 registered?
Mode-S code A73AB6 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 A73AB6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A73AB6, octal 51635266, decimal 10,959,542.
What flights does A73AB6 operate?
Mode-S A73AB6 has broadcast 20 distinct callsigns, including JIA5405, JIA5590, JIA5407, JIA5020, JIA5627.