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sensors Mode-S transponder

A6CAD3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N537EA · BOMBARDIER Regional Jet CRJ-700 · operated by AMERICAN AIRLINES INC

Hex
A6CAD3
Octal
51545323
Decimal
10,930,899
Country
US
Tail
N537EA
Type
CRJ7
No current signal · last broadcast 2h ago
Flights observed
619
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A6CAD3.

Country allocation

The ICAO 24-bit address A6CAD3 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
JIA5374 - 10 2026-07-11
JIA5440 PSA Airlines 9 2026-05-02
JIA5299 PSA Airlines 9 2026-06-09
JIA5235 - 9 2026-07-10
JIA5518 - 8 2026-07-03
JIA5460 PSA Airlines 8 2026-05-17
JIA5384 - 8 2026-07-14
JIA5146 - 8 2026-06-26
JIA5670 PSA Airlines 7 2026-06-28
JIA5584 PSA Airlines 7 2026-06-01
JIA5575 PSA Airlines 7 2026-05-21
JIA5153 - 7 2026-07-11
JIA5043 - 7 2026-07-08
JIA5675 - 6 2026-07-08
JIA5673 PSA Airlines 6 2026-06-29
JIA5619 PSA Airlines 6 2026-06-09
JIA5591 PSA Airlines 6 2026-05-20
JIA5514 PSA Airlines 6 2026-06-01
JIA5338 - 6 2026-07-01
JIA5237 PSA Airlines 6 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JIA5384 DAA → SAV Jul 14, 00:50 UTCJul 14, 02:10 UTC1h 20m
2026-07-13 JIA5032 - Jul 13, 22:25 UTCJul 13, 23:25 UTC1h 0m
2026-07-13 JIA5232 - Jul 13, 20:30 UTCJul 13, 21:25 UTC55m
2026-07-13 JIA5282 - Jul 13, 18:55 UTCJul 13, 19:40 UTC45m
2026-07-13 JIA5282 - Jul 13, 16:55 UTCJul 13, 17:45 UTC50m
2026-07-13 JIA5552 - Jul 13, 14:25 UTCJul 13, 16:00 UTC1h 35m
2026-07-13 JIA5547 - Jul 13, 01:30 UTCJul 13, 03:15 UTC1h 45m
2026-07-12 JIA5313 MSY → DCA Jul 12, 21:25 UTCJul 12, 23:40 UTC2h 15m
2026-07-12 JIA5313 - Jul 12, 17:10 UTCJul 12, 18:45 UTC1h 35m
2026-07-12 JIA5313 - Jul 12, 13:35 UTCJul 12, 15:40 UTC2h 5m
2026-07-12 JIA5459 BGR → DCA Jul 12, 10:05 UTCJul 12, 11:30 UTC1h 25m
2026-07-12 JIA5436 DCA → BGR Jul 12, 00:25 UTCJul 12, 01:50 UTC1h 25m
2026-07-11 JIA5458 - Jul 11, 20:50 UTCJul 11, 22:01 UTC1h 10m
2026-07-11 JIA5276 - Jul 11, 18:20 UTCJul 11, 19:25 UTC1h 5m
2026-07-11 JIA5374 - Jul 11, 16:00 UTCJul 11, 16:55 UTC55m
2026-07-11 JIA5374 DCA → ROC Jul 11, 14:15 UTCJul 11, 15:00 UTC45m
2026-07-11 JIA5646 - Jul 11, 11:05 UTCJul 11, 12:35 UTC1h 30m
2026-07-11 JIA5656 DCA → MKE Jul 11, 05:07 UTCJul 11, 06:38 UTC1h 31m
2026-07-11 JIA5656 - Jul 11, 05:10 UTCJul 11, 06:40 UTC1h 30m
2026-07-11 JIA5153 - Jul 11, 01:15 UTCJul 11, 01:55 UTC40m
2026-07-10 JIA5164 - Jul 10, 23:45 UTCJul 11, 00:30 UTC45m
2026-07-10 JIA5246 - Jul 10, 19:45 UTCJul 10, 21:00 UTC1h 15m
2026-07-10 JIA5246 - Jul 10, 16:25 UTCJul 10, 17:35 UTC1h 10m
2026-07-10 JIA5235 - Jul 10, 14:35 UTCJul 10, 15:25 UTC50m
2026-07-10 JIA5235 - Jul 10, 12:20 UTCJul 10, 13:10 UTC50m
2026-07-10 JIA5034 BDL → DCA Jul 10, 10:10 UTCJul 10, 11:10 UTC1h 0m
2026-07-10 JIA9678 - Jul 10, 02:45 UTCJul 10, 04:00 UTC1h 15m
2026-07-10 JIA5132 DCA → CLE Jul 10, 00:55 UTCJul 10, 01:45 UTC50m
2026-07-09 JIA5200 - Jul 9, 22:15 UTCJul 9, 23:45 UTC1h 30m
2026-07-09 JIA5200 DCA → GRR Jul 9, 16:50 UTCJul 9, 18:20 UTC1h 30m
2026-07-09 JIA5050 ATL → DCA Jul 9, 13:25 UTCJul 9, 14:40 UTC1h 15m
2026-07-09 JIA5050 - Jul 9, 10:40 UTCJul 9, 12:00 UTC1h 20m
2026-07-08 JIA5599 - Jul 8, 23:00 UTCJul 9, 00:45 UTC1h 45m
2026-07-08 JIA5599 DCA → MSN Jul 8, 18:50 UTCJul 8, 20:25 UTC1h 35m
2026-07-08 JIA5080 - Jul 8, 16:00 UTCJul 8, 17:30 UTC1h 30m
2026-07-08 JIA5080 - Jul 8, 13:10 UTCJul 8, 14:40 UTC1h 30m
2026-07-08 JIA5675 - Jul 8, 10:10 UTCJul 8, 11:30 UTC1h 20m
2026-07-08 JIA5675 BTV → DCA Jul 8, 10:07 UTCJul 8, 11:25 UTC1h 18m
2026-07-08 JIA5043 - Jul 8, 02:10 UTCJul 8, 03:15 UTC1h 5m
2026-07-07 JIA5249 - Jul 7, 21:05 UTCJul 7, 22:20 UTC1h 15m
2026-07-07 JIA5249 PHL → LEX Jul 7, 18:45 UTCJul 7, 20:05 UTC1h 20m
2026-07-07 JIA5130 CVG → PHL Jul 7, 13:20 UTCJul 7, 14:35 UTC1h 15m
2026-07-07 JIA5618 - Jul 7, 00:20 UTCJul 7, 01:55 UTC1h 35m
2026-07-06 JIA5618 - Jul 6, 23:40 UTCJul 7, 00:10 UTC30m
2026-07-06 JIA5095 - Jul 6, 21:40 UTCJul 6, 22:40 UTC1h 0m
2026-07-06 JIA5095 BTV → PHL Jul 6, 21:36 UTCJul 6, 22:36 UTC1h 0m
2026-07-06 JIA5096 PHL → BTV Jul 6, 19:00 UTCJul 6, 20:00 UTC1h 0m
2026-07-06 JIA5096 PHL → BTV Jul 6, 18:57 UTCJul 6, 19:59 UTC1h 2m
2026-07-06 JIA5096 - Jul 6, 17:50 UTCJul 6, 17:55 UTC5m
2026-07-06 JIA5037 - Jul 6, 14:00 UTCJul 6, 15:35 UTC1h 35m

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 N537EA page for operator, model, and routing details .

Mode-S A6CAD3 frequently asked

What is Mode-S code A6CAD3?
A6CAD3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N537EA.
Where is Mode-S A6CAD3 registered?
Mode-S code A6CAD3 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 A6CAD3 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6CAD3, octal 51545323, decimal 10,930,899.
What flights does A6CAD3 operate?
Mode-S A6CAD3 has broadcast 20 distinct callsigns, including JIA5374, JIA5440, JIA5299, JIA5235, JIA5518.