Apparatus

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sensors Mode-S transponder

A6E72D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N544EA · BOMBARDIER Regional Jet CRJ-700 · operated by AMERICAN AIRLINES INC

Hex
A6E72D
Octal
51563455
Decimal
10,938,157
Country
US
Tail
N544EA
Type
CRJ7
No current signal · last broadcast 16d ago
Flights observed
475
Distinct callsigns
20
Country
US
Last broadcast
16d ago

Last known position

Most recent position reported by Mode-S A6E72D.

Country allocation

The ICAO 24-bit address A6E72D 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
JIA5166 PSA Airlines 9 2026-05-15
JIA5159 PSA Airlines 9 2026-05-13
JIA5098 PSA Airlines 8 2026-05-13
JIA5368 PSA Airlines 7 2026-05-02
JIA5460 PSA Airlines 6 2026-05-05
JIA5418 - 6 2026-06-24
JIA5339 PSA Airlines 6 2026-06-15
JIA5220 - 6 2026-06-16
JIA5077 PSA Airlines 6 2026-05-07
JIA5634 PSA Airlines 5 2026-05-10
JIA5621 PSA Airlines 5 2026-04-23
JIA5606 PSA Airlines 5 2026-06-08
JIA5518 PSA Airlines 5 2026-06-02
JIA5516 - 5 2026-06-23
JIA5456 PSA Airlines 5 2026-05-04
JIA5226 PSA Airlines 5 2026-06-09
JIA5146 - 5 2026-06-17
JIA5054 PSA Airlines 5 2026-04-22
JIA5042 PSA Airlines 5 2026-06-09
JIA5659 PSA Airlines 4 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-27 JIA9855 DAY → BRO Jun 27, 17:44 UTCJun 27, 18:15 UTC30m
2026-06-27 JIA9855 DAY → BRO Jun 27, 14:20 UTCJun 27, 16:49 UTC2h 30m
2026-06-26 JIA5024 - Jun 26, 22:19 UTCJun 26, 23:30 UTC1h 10m
2026-06-26 JIA5024 - Jun 26, 20:00 UTCJun 26, 21:24 UTC1h 25m
2026-06-26 JIA5331 PHL → BHM Jun 26, 15:34 UTCJun 26, 16:24 UTC50m
2026-06-26 JIA5330 - Jun 26, 13:55 UTCJun 26, 14:19 UTC25m
2026-06-26 JIA5503 - Jun 26, 11:34 UTCJun 26, 13:04 UTC1h 30m
2026-06-26 JIA5373 STL → PHL Jun 26, 02:50 UTCJun 26, 04:39 UTC1h 50m
2026-06-25 JIA5059 - Jun 25, 19:20 UTCJun 25, 20:30 UTC1h 10m
2026-06-25 JIA5059 BDL → DCA Jun 25, 19:19 UTCJun 25, 20:25 UTC1h 6m
2026-06-25 JIA5059 DCA → BDL Jun 25, 16:55 UTCJun 25, 17:49 UTC55m
2026-06-25 JIA5050 - Jun 25, 15:50 UTCJun 25, 15:59 UTC10m
2026-06-25 JIA5050 ATL → DCA Jun 25, 14:14 UTCJun 25, 15:59 UTC1h 45m
2026-06-25 JIA5050 ATL → DCA Jun 25, 14:11 UTCJun 25, 15:32 UTC1h 21m
2026-06-25 JIA5050 - Jun 25, 10:35 UTCJun 25, 11:54 UTC1h 20m
2026-06-25 JIA5229 PHL → CLE Jun 25, 01:09 UTCJun 25, 01:54 UTC45m
2026-06-24 JIA5229 PHL → CLE Jun 24, 22:29 UTCJun 24, 23:14 UTC45m
2026-06-24 JIA5367 - Jun 24, 20:40 UTCJun 24, 21:14 UTC35m
2026-06-24 JIA5367 RDU → DCA Jun 24, 20:36 UTCJun 24, 21:13 UTC37m
2026-06-24 JIA5367 DCA → RDU Jun 24, 18:50 UTCJun 24, 19:34 UTC45m
2026-06-24 JIA5374 ROC → DCA Jun 24, 16:40 UTCJun 24, 17:40 UTC1h 0m
2026-06-24 JIA5374 DCA → ROC Jun 24, 14:34 UTCJun 24, 15:24 UTC50m
2026-06-24 JIA5351 ROC → DCA Jun 24, 12:25 UTCJun 24, 13:20 UTC55m
2026-06-24 JIA5344 DCA → ROC Jun 24, 02:45 UTCJun 24, 03:35 UTC50m
2026-06-24 JIA5418 - Jun 24, 00:20 UTCJun 24, 01:19 UTC1h 0m
2026-06-23 JIA5418 - Jun 23, 22:05 UTCJun 23, 22:49 UTC45m
2026-06-23 JIA5572 - Jun 23, 19:39 UTCJun 23, 20:59 UTC1h 20m
2026-06-23 JIA5572 DCA → IND Jun 23, 17:09 UTCJun 23, 18:25 UTC1h 15m
2026-06-23 JIA5516 - Jun 23, 14:10 UTCJun 23, 15:19 UTC1h 10m
2026-06-23 JIA5516 - Jun 23, 12:09 UTCJun 23, 13:15 UTC1h 5m
2026-06-23 JIA5411 - Jun 23, 09:40 UTCJun 23, 10:35 UTC55m
2026-06-23 JIA9683 - Jun 23, 03:34 UTCJun 23, 04:05 UTC30m
2026-06-23 JIA5162 - Jun 23, 01:10 UTCJun 23, 02:15 UTC1h 5m
2026-06-23 JIA5162 DCA → DAY Jun 23, 01:05 UTCJun 23, 02:17 UTC1h 12m
2026-06-22 JIA5286 - Jun 22, 18:09 UTCJun 22, 19:40 UTC1h 30m
2026-06-22 JIA5286 - Jun 22, 15:35 UTCJun 22, 17:20 UTC1h 45m
2026-06-22 JIA5323 - Jun 22, 13:25 UTCJun 22, 13:59 UTC35m
2026-06-22 JIA5323 PIT → DCA Jun 22, 13:20 UTCJun 22, 14:01 UTC41m
2026-06-22 JIA5323 - Jun 22, 12:00 UTCJun 22, 12:44 UTC45m
2026-06-22 JIA5351 ROC → DCA Jun 22, 09:54 UTCJun 22, 10:44 UTC50m
2026-06-22 JIA5344 DCA → ROC Jun 22, 02:40 UTCJun 22, 03:35 UTC55m
2026-06-22 JIA5162 DTW → PHL Jun 22, 00:04 UTCJun 22, 01:05 UTC1h 0m
2026-06-21 JIA5162 DTW → PHL Jun 21, 22:00 UTCJun 21, 23:10 UTC1h 10m
2026-06-21 JIA5572 IND → DCA Jun 21, 19:29 UTCJun 21, 20:50 UTC1h 20m
2026-06-21 JIA5572 DCA → IND Jun 21, 17:15 UTCJun 21, 18:35 UTC1h 20m
2026-06-21 JIA5060 CVG → PHL Jun 21, 15:05 UTCJun 21, 15:59 UTC55m
2026-06-21 JIA5060 CVG → PHL Jun 21, 15:01 UTCJun 21, 15:59 UTC58m
2026-06-21 JIA5060 CVG → PHL Jun 21, 13:09 UTCJun 21, 13:59 UTC50m
2026-06-21 JIA5155 CLT → CAK Jun 21, 09:59 UTCJun 21, 11:15 UTC1h 15m
2026-06-21 JIA5154 BTV → CLT Jun 21, 01:14 UTCJun 21, 02:15 UTC1h 0m

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 N544EA page for operator, model, and routing details .

Mode-S A6E72D frequently asked

What is Mode-S code A6E72D?
A6E72D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N544EA.
Where is Mode-S A6E72D registered?
Mode-S code A6E72D 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 A6E72D broadcasting right now?
No active broadcast right now. Last signal was 16d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6E72D, octal 51563455, decimal 10,938,157.
What flights does A6E72D operate?
Mode-S A6E72D has broadcast 20 distinct callsigns, including JIA5166, JIA5159, JIA5098, JIA5368, JIA5460.