Apparatus

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sensors Mode-S transponder

A6EEB9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N546FF · BOMBARDIER Regional Jet CRJ-700 · operated by AMERICAN AIRLINES INC

Hex
A6EEB9
Octal
51567271
Decimal
10,940,089
Country
US
Tail
N546FF
Type
CRJ7
No current signal · last broadcast 1h ago
Flights observed
633
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A6EEB9.

Country allocation

The ICAO 24-bit address A6EEB9 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
JIA5061 - 12 2026-07-10
JIA5339 - 11 2026-06-24
JIA5236 - 10 2026-06-27
JIA5032 PSA Airlines 10 2026-06-13
JIA5642 PSA Airlines 9 2026-06-18
JIA5606 PSA Airlines 9 2026-06-19
JIA5431 - 9 2026-06-19
JIA5146 - 9 2026-06-25
JIA5041 PSA Airlines 9 2026-07-04
JIA5282 PSA Airlines 8 2026-05-31
JIA5226 - 8 2026-07-09
JIA5114 - 8 2026-07-04
JIA5070 - 8 2026-06-27
JIA5229 - 7 2026-07-09
JIA5219 - 7 2026-07-03
JIA5159 - 7 2026-06-23
JIA5153 - 7 2026-06-27
JIA5077 - 7 2026-06-30
JIA5059 - 7 2026-07-11
JIA5621 PSA Airlines 6 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 JIA5081 - Jul 14, 03:00 UTCJul 14, 03:45 UTC45m
2026-07-13 JIA5081 - Jul 13, 23:30 UTCJul 14, 00:10 UTC40m
2026-07-13 JIA5362 - Jul 13, 21:25 UTCJul 13, 22:05 UTC40m
2026-07-13 JIA5362 - Jul 13, 19:50 UTCJul 13, 20:25 UTC35m
2026-07-13 JIA5551 - Jul 13, 16:10 UTCJul 13, 17:10 UTC1h 0m
2026-07-13 JIA5551 - Jul 13, 14:10 UTCJul 13, 15:10 UTC1h 0m
2026-07-13 JIA5362 OKC → DFW Jul 13, 02:32 UTCJul 13, 03:17 UTC45m
2026-07-13 JIA5362 OKC → DFW Jul 13, 02:35 UTCJul 13, 03:20 UTC45m
2026-07-12 JIA5362 DAL → OKC Jul 12, 19:50 UTCJul 12, 20:25 UTC35m
2026-07-12 JIA5325 - Jul 12, 16:40 UTCJul 12, 18:40 UTC2h 0m
2026-07-11 JIA5477 - Jul 11, 23:50 UTCJul 12, 01:25 UTC1h 35m
2026-07-11 JIA5477 DCA → TLH Jul 11, 23:49 UTCJul 12, 01:24 UTC1h 35m
2026-07-11 JIA5059 BDL → DCA Jul 11, 21:20 UTCJul 11, 22:40 UTC1h 20m
2026-07-11 JIA5059 - Jul 11, 18:35 UTCJul 11, 19:50 UTC1h 15m
2026-07-11 JIA5371 - Jul 11, 13:10 UTCJul 11, 14:25 UTC1h 15m
2026-07-11 JIA5371 - Jul 11, 11:15 UTCJul 11, 12:15 UTC1h 0m
2026-07-11 JIA5470 - Jul 11, 04:15 UTCJul 11, 05:05 UTC50m
2026-07-10 JIA5470 - Jul 10, 22:15 UTCJul 10, 23:55 UTC1h 40m
2026-07-10 JIA5470 DCA → CLE Jul 10, 19:55 UTCJul 10, 21:00 UTC1h 5m
2026-07-10 JIA5061 BGR → DCA Jul 10, 15:05 UTCJul 10, 16:40 UTC1h 35m
2026-07-10 JIA5061 DCA → BGR Jul 10, 12:40 UTCJul 10, 14:00 UTC1h 20m
2026-07-10 JIA5301 - Jul 10, 10:20 UTCJul 10, 11:40 UTC1h 20m
2026-07-10 JIA5301 GRR → DCA Jul 10, 10:17 UTCJul 10, 11:37 UTC1h 20m
2026-07-10 JIA5376 DCA → GRR Jul 10, 01:50 UTCJul 10, 03:05 UTC1h 15m
2026-07-09 JIA5505 - Jul 9, 22:40 UTCJul 10, 00:35 UTC1h 55m
2026-07-09 JIA5505 MCI → DCA Jul 9, 22:10 UTCJul 10, 00:32 UTC2h 22m
2026-07-09 JIA5505 - Jul 9, 19:05 UTCJul 9, 21:15 UTC2h 10m
2026-07-09 JIA5029 - Jul 9, 17:00 UTCJul 9, 18:00 UTC1h 0m
2026-07-09 JIA5029 ALB → DCA Jul 9, 16:57 UTCJul 9, 18:05 UTC1h 8m
2026-07-09 JIA5029 - Jul 9, 15:00 UTCJul 9, 16:05 UTC1h 5m
2026-07-09 JIA5226 - Jul 9, 12:00 UTCJul 9, 13:15 UTC1h 15m
2026-07-09 JIA5042 DCA → AGS Jul 9, 03:00 UTCJul 9, 04:09 UTC1h 9m
2026-07-09 JIA5042 DCA → AGS Jul 9, 03:05 UTCJul 9, 04:10 UTC1h 5m
2026-07-09 JIA5229 - Jul 9, 00:35 UTCJul 9, 01:30 UTC55m
2026-07-08 JIA5229 - Jul 8, 22:40 UTCJul 8, 23:30 UTC50m
2026-07-08 JIA5334 - Jul 8, 19:55 UTCJul 8, 21:20 UTC1h 25m
2026-07-08 JIA5334 - Jul 8, 17:10 UTCJul 8, 18:05 UTC55m
2026-07-08 JIA5516 - Jul 8, 15:00 UTCJul 8, 16:05 UTC1h 5m
2026-07-08 JIA5550 DCA → DTW Jul 8, 13:00 UTCJul 8, 14:05 UTC1h 5m
2026-07-08 JIA5550 DCA → DTW Jul 8, 12:55 UTCJul 8, 14:00 UTC1h 5m
2026-07-08 JIA5603 - Jul 8, 10:10 UTCJul 8, 11:10 UTC1h 0m
2026-07-08 JIA5554 - Jul 8, 04:05 UTCJul 8, 05:00 UTC55m
2026-07-08 JIA5554 DCA → CAE Jul 8, 04:02 UTCJul 8, 05:04 UTC1h 2m
2026-07-08 JIA5667 YYZ → DCA Jul 8, 00:45 UTCJul 8, 01:50 UTC1h 5m
2026-07-07 JIA5667 DCA → YYZ Jul 7, 22:20 UTCJul 7, 23:30 UTC1h 10m
2026-07-07 JIA522U - Jul 7, 17:45 UTCJul 7, 18:35 UTC50m
2026-07-06 JIA5229 PHL → CLE Jul 6, 23:40 UTCJul 7, 00:45 UTC1h 5m
2026-07-06 JIA5229 PHL → CLE Jul 6, 23:40 UTCJul 7, 00:42 UTC1h 2m
2026-07-06 JIA5200 DCA → HSV Jul 6, 18:50 UTCJul 6, 20:10 UTC1h 20m
2026-07-06 JIA5200 DCA → HSV Jul 6, 15:55 UTCJul 6, 17:15 UTC1h 20m

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 N546FF page for operator, model, and routing details .

Mode-S A6EEB9 frequently asked

What is Mode-S code A6EEB9?
A6EEB9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N546FF.
Where is Mode-S A6EEB9 registered?
Mode-S code A6EEB9 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 A6EEB9 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6EEB9, octal 51567271, decimal 10,940,089.
What flights does A6EEB9 operate?
Mode-S A6EEB9 has broadcast 20 distinct callsigns, including JIA5061, JIA5339, JIA5236, JIA5032, JIA5642.