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sensors Mode-S transponder

A736FF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N564NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A736FF
Octal
51633377
Decimal
10,958,591
Country
US
Tail
N564NN
Type
CRJ9
No current signal · last broadcast Jul 25, 23:50 UTC
Flights observed
702
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 23:50 UTC

Last known position

Most recent position reported by Mode-S A736FF.

Country allocation

The ICAO 24-bit address A736FF 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
JIA5299 PSA Airlines 11 2026-07-21
JIA5287 PSA Airlines 8 2026-05-10
JIA5036 - 7 2026-07-16
JIA5504 - 6 2026-06-28
JIA5397 - 6 2026-07-16
JIA5391 PSA Airlines 6 2026-06-24
JIA5355 - 6 2026-07-03
JIA5353 - 6 2026-07-02
JIA5243 - 6 2026-07-14
JIA5151 - 6 2026-06-22
JIA5093 - 6 2026-06-25
JIA5020 PSA Airlines 6 2026-05-29
JIA5613 PSA Airlines 5 2026-07-24
JIA5590 - 5 2026-06-20
JIA5581 PSA Airlines 5 2026-05-27
JIA5579 PSA Airlines 5 2026-07-23
JIA5541 PSA Airlines 5 2026-04-23
JIA5523 - 5 2026-06-30
JIA5350 - 5 2026-07-22
JIA5307 PSA Airlines 5 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 JIA5618 CLT → LEX Jul 25, 22:31 UTCJul 25, 23:49 UTC1h 18m
2026-07-25 JIA5618 CLT → LEX Jul 25, 22:35 UTCJul 25, 23:50 UTC1h 15m
2026-07-25 JIA5165 MSP → DCA Jul 25, 18:20 UTCJul 25, 20:25 UTC2h 5m
2026-07-25 JIA5165 MSP → DCA Jul 25, 15:00 UTCJul 25, 17:25 UTC2h 25m
2026-07-25 JIA5130 CVG → PHL Jul 25, 12:30 UTCJul 25, 13:40 UTC1h 10m
2026-07-25 JIA5524 MSP → DCA Jul 25, 02:35 UTCJul 25, 03:00 UTC25m
2026-07-24 JIA5529 DCA → RDU Jul 24, 22:35 UTCJul 24, 23:45 UTC1h 10m
2026-07-24 JIA5114 YYZ → PHL Jul 24, 20:00 UTCJul 24, 20:55 UTC55m
2026-07-24 JIA5082 TLH → DCA Jul 24, 17:50 UTCJul 24, 18:45 UTC55m
2026-07-24 JIA5082 TLH → DCA Jul 24, 16:05 UTCJul 24, 17:00 UTC55m
2026-07-24 JIA5214 DCA → PWM Jul 24, 10:05 UTCJul 24, 11:10 UTC1h 5m
2026-07-24 JIA5613 DCA → PVD Jul 24, 04:20 UTCJul 24, 05:20 UTC1h 0m
2026-07-24 JIA5141 CVG → CLT Jul 24, 01:55 UTCJul 24, 02:35 UTC40m
2026-07-24 JIA5141 CVG → CLT Jul 24, 01:53 UTCJul 24, 02:33 UTC40m
2026-07-24 JIA5141 CVG → CLT Jul 24, 00:20 UTCJul 24, 00:55 UTC35m
2026-07-23 JIA5579 PHL → BUF Jul 23, 20:05 UTCJul 23, 22:30 UTC2h 25m
2026-07-23 JIA5579 PHL → BUF Jul 23, 19:44 UTCJul 23, 22:25 UTC2h 41m
2026-07-23 JIA5579 PHL → BUF Jul 23, 15:10 UTCJul 23, 18:00 UTC2h 50m
2026-07-23 JIA5175 GSP → PHL Jul 23, 12:40 UTCJul 23, 13:45 UTC1h 5m
2026-07-23 JIA5633 CMH → PHL Jul 23, 04:25 UTCJul 23, 05:25 UTC1h 0m
2026-07-23 JIA5633 CMH → PHL Jul 23, 04:20 UTCJul 23, 05:25 UTC1h 5m
2026-07-23 JIA5150 PVD → PHL Jul 23, 00:15 UTCJul 23, 01:25 UTC1h 10m
2026-07-22 JIA5150 PVD → PHL Jul 22, 22:20 UTCJul 22, 23:30 UTC1h 10m
2026-07-22 JIA5350 - Jul 22, 18:40 UTCJul 22, 20:30 UTC1h 50m
2026-07-22 JIA5350 - Jul 22, 15:35 UTCJul 22, 15:45 UTC10m
2026-07-22 JIA5350 CLT → YUL Jul 22, 15:30 UTCJul 22, 17:29 UTC1h 59m
2026-07-22 JIA5426 SYR → PHL Jul 22, 12:15 UTCJul 22, 14:00 UTC1h 45m
2026-07-22 JIA5206 SRQ → PHL Jul 22, 01:00 UTCJul 22, 02:35 UTC1h 35m
2026-07-21 JIA5307 MGM → DCA Jul 21, 21:45 UTCJul 21, 23:30 UTC1h 45m
2026-07-21 JIA5307 MGM → DCA Jul 21, 21:43 UTCJul 21, 23:26 UTC1h 43m
2026-07-21 JIA5307 MGM → DCA Jul 21, 18:40 UTCJul 21, 20:40 UTC2h 0m
2026-07-21 JIA5299 PHL → BDL Jul 21, 15:49 UTCJul 21, 16:53 UTC1h 4m
2026-07-21 JIA5299 PHL → BDL Jul 21, 13:50 UTCJul 21, 15:00 UTC1h 10m
2026-07-21 JIA5548 - Jul 21, 10:45 UTCJul 21, 11:55 UTC1h 10m
2026-07-21 JIA5544 DCA → PNS Jul 21, 00:45 UTCJul 21, 02:40 UTC1h 55m
2026-07-21 JIA5544 DCA → PNS Jul 21, 00:40 UTCJul 21, 02:37 UTC1h 57m
2026-07-20 JIA5636 - Jul 20, 20:50 UTCJul 20, 21:25 UTC35m
2026-07-20 JIA5636 PHL → PHL Jul 20, 20:25 UTCJul 20, 20:30 UTC5m
2026-07-20 JIA5636 PHL → PHL Jul 20, 19:55 UTCJul 20, 20:00 UTC5m
2026-07-20 JIA5474 DCA → PHL Jul 20, 18:00 UTCJul 20, 18:30 UTC30m
2026-07-20 JIA5659 - Jul 20, 15:00 UTCJul 20, 16:10 UTC1h 10m
2026-07-20 JIA5659 CHS → DCA Jul 20, 14:56 UTCJul 20, 16:03 UTC1h 7m
2026-07-20 JIA5659 - Jul 20, 12:45 UTCJul 20, 14:05 UTC1h 20m
2026-07-20 JIA5051 - Jul 20, 10:15 UTCJul 20, 11:05 UTC50m
2026-07-20 JIA5197 DCA → CMH Jul 20, 03:10 UTCJul 20, 04:05 UTC55m
2026-07-20 JIA5197 DCA → CMH Jul 20, 03:07 UTCJul 20, 04:05 UTC58m
2026-07-20 JIA5019 - Jul 20, 00:15 UTCJul 20, 01:00 UTC45m
2026-07-20 JIA5019 PHL → DCA Jul 20, 00:11 UTCJul 20, 01:00 UTC49m
2026-07-19 JIA5019 - Jul 19, 23:55 UTCJul 20, 00:00 UTC5m
2026-07-19 JIA5406 CHA → CLT Jul 19, 22:20 UTCJul 19, 22:50 UTC30m

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 N564NN page for operator, model, and routing details .

Mode-S A736FF frequently asked

What is Mode-S code A736FF?
A736FF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N564NN.
Where is Mode-S A736FF registered?
Mode-S code A736FF 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 A736FF broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 23:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A736FF, octal 51633377, decimal 10,958,591.
What flights does A736FF operate?
Mode-S A736FF has broadcast 20 distinct callsigns, including JIA5299, JIA5287, JIA5036, JIA5504, JIA5397.