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sensors Mode-S transponder

A72BDA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N561NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A72BDA
Octal
51625732
Decimal
10,955,738
Country
US
Tail
N561NN
Type
CRJ9
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
672
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S A72BDA.

Country allocation

The ICAO 24-bit address A72BDA 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
JIA5131 - 11 2026-06-23
JIA5658 - 8 2026-07-15
JIA5190 PSA Airlines 8 2026-05-16
JIA5156 PSA Airlines 7 2026-06-08
JIA5118 PSA Airlines 7 2026-06-13
JIA5076 PSA Airlines 7 2026-05-18
JIA5648 - 6 2026-06-19
JIA5634 PSA Airlines 6 2026-06-03
JIA5426 PSA Airlines 6 2026-06-17
JIA5416 PSA Airlines 6 2026-05-18
JIA5165 - 6 2026-07-16
JIA5069 PSA Airlines 6 2026-05-17
JIA5639 - 5 2026-06-22
JIA5579 - 5 2026-06-27
JIA5417 - 5 2026-06-15
JIA5407 - 5 2026-07-11
JIA5394 PSA Airlines 5 2026-07-24
JIA5343 - 5 2026-07-01
JIA5340 - 5 2026-06-25
JIA5322 - 5 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA5427 BTR → DCA Jul 26, 20:40 UTCJul 26, 21:45 UTC1h 5m
2026-07-26 JIA5427 BTR → DCA Jul 26, 18:10 UTCJul 26, 19:25 UTC1h 15m
2026-07-26 JIA5576 DCA → GSP Jul 26, 14:10 UTCJul 26, 15:40 UTC1h 30m
2026-07-26 JIA5576 DCA → GSP Jul 26, 14:08 UTCJul 26, 15:42 UTC1h 34m
2026-07-26 JIA5576 DCA → GSP Jul 26, 11:30 UTCJul 26, 13:05 UTC1h 35m
2026-07-25 JIA5532 BNA → DCA Jul 25, 23:45 UTCJul 26, 01:15 UTC1h 30m
2026-07-25 JIA5532 BNA → DCA Jul 25, 21:20 UTCJul 25, 23:10 UTC1h 50m
2026-07-25 JIA5469 - Jul 25, 18:15 UTCJul 25, 20:10 UTC1h 55m
2026-07-25 JIA5469 PNS → PHL Jul 25, 18:09 UTCJul 25, 20:10 UTC2h 1m
2026-07-25 JIA5469 PHL → PNS Jul 25, 14:45 UTCJul 25, 16:55 UTC2h 10m
2026-07-24 JIA5394 CMH → PHL Jul 24, 00:35 UTCJul 24, 01:55 UTC1h 20m
2026-07-23 JIA5394 CMH → PHL Jul 23, 22:05 UTCJul 23, 23:40 UTC1h 35m
2026-07-23 JIA5461 CLT → LEX Jul 23, 19:10 UTCJul 23, 20:50 UTC1h 40m
2026-07-23 JIA5461 CLT → LEX Jul 23, 16:10 UTCJul 23, 17:50 UTC1h 40m
2026-07-22 JIA5592 - Jul 22, 23:25 UTCJul 23, 00:40 UTC1h 15m
2026-07-22 JIA5592 - Jul 22, 19:40 UTCJul 22, 21:10 UTC1h 30m
2026-07-22 JIA9952 CLT → CVG Jul 22, 15:25 UTCJul 22, 16:55 UTC1h 30m
2026-07-21 JIA5457 - Jul 21, 15:55 UTCJul 21, 17:40 UTC1h 45m
2026-07-21 JIA5562 BHM → DCA Jul 21, 12:00 UTCJul 21, 13:50 UTC1h 50m
2026-07-21 JIA5608 DCA → GSP Jul 21, 03:25 UTCJul 21, 05:05 UTC1h 40m
2026-07-21 JIA5608 DCA → GSP Jul 21, 03:20 UTCJul 21, 05:04 UTC1h 44m
2026-07-21 JIA5357 DCA → BDL Jul 21, 00:20 UTCJul 21, 01:30 UTC1h 10m
2026-07-20 JIA5287 - Jul 20, 21:05 UTCJul 20, 22:15 UTC1h 10m
2026-07-20 JIA5082 - Jul 20, 18:10 UTCJul 20, 19:00 UTC50m
2026-07-20 JIA5082 - Jul 20, 16:10 UTCJul 20, 17:10 UTC1h 0m
2026-07-20 JIA5182 - Jul 20, 14:10 UTCJul 20, 14:40 UTC30m
2026-07-20 JIA5182 TYS → CLT Jul 20, 14:07 UTCJul 20, 14:41 UTC34m
2026-07-17 JIA5066 - Jul 17, 00:50 UTCJul 17, 02:05 UTC1h 15m
2026-07-16 JIA5066 - Jul 16, 22:45 UTCJul 16, 22:49 UTC5m
2026-07-16 JIA5165 - Jul 16, 19:55 UTCJul 16, 22:00 UTC2h 5m
2026-07-16 JIA5165 PHL → DSM Jul 16, 14:50 UTCJul 16, 17:00 UTC2h 10m
2026-07-16 JIA5468 - Jul 16, 11:15 UTCJul 16, 13:20 UTC2h 5m
2026-07-16 JIA5468 MEM → PHL Jul 16, 11:12 UTCJul 16, 13:19 UTC2h 7m
2026-07-15 JIA5415 - Jul 15, 23:20 UTCJul 16, 01:10 UTC1h 50m
2026-07-15 JIA5658 - Jul 15, 18:30 UTCJul 15, 20:55 UTC2h 25m
2026-07-15 JIA5658 PHL → MSP Jul 15, 15:15 UTCJul 15, 17:30 UTC2h 15m
2026-07-15 JIA5468 - Jul 15, 11:25 UTCJul 15, 13:35 UTC2h 10m
2026-07-14 JIA5415 - Jul 14, 23:10 UTCJul 15, 01:05 UTC1h 55m
2026-07-14 JIA5658 MSP → PHL Jul 14, 18:15 UTCJul 14, 20:25 UTC2h 10m
2026-07-14 JIA5658 MSP → PHL Jul 14, 18:15 UTCJul 14, 20:24 UTC2h 9m
2026-07-14 JIA5658 PSQ → MSP Jul 14, 15:15 UTCJul 14, 17:20 UTC2h 5m
2026-07-14 JIA5468 - Jul 14, 12:05 UTCJul 14, 14:05 UTC2h 0m
2026-07-14 JIA5491 - Jul 14, 00:25 UTCJul 14, 02:05 UTC1h 40m
2026-07-13 JIA5285 - Jul 13, 21:45 UTCJul 13, 23:00 UTC1h 15m
2026-07-13 JIA5288 - Jul 13, 18:40 UTCJul 13, 20:20 UTC1h 40m
2026-07-13 JIA5540 - Jul 13, 15:30 UTCJul 13, 16:40 UTC1h 10m
2026-07-13 JIA5464 - Jul 13, 03:01 UTCJul 13, 04:05 UTC1h 5m
2026-07-13 JIA5389 - Jul 13, 00:05 UTCJul 13, 01:20 UTC1h 15m
2026-07-12 JIA5389 - Jul 12, 21:45 UTCJul 12, 22:55 UTC1h 10m
2026-07-12 JIA5093 - Jul 12, 18:30 UTCJul 12, 20:20 UTC1h 50m

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 N561NN page for operator, model, and routing details .

Mode-S A72BDA frequently asked

What is Mode-S code A72BDA?
A72BDA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N561NN.
Where is Mode-S A72BDA registered?
Mode-S code A72BDA 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 A72BDA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A72BDA, octal 51625732, decimal 10,955,738.
What flights does A72BDA operate?
Mode-S A72BDA has broadcast 20 distinct callsigns, including JIA5131, JIA5658, JIA5190, JIA5156, JIA5118.