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 Jul 26, 21:05 UTC
Flights observed
708
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:05 UTC

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
JIA5339 PSA Airlines 13 2026-07-24
JIA5236 PSA Airlines 12 2026-07-23
JIA5061 - 12 2026-07-10
JIA5219 - 10 2026-07-18
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
JIA5077 - 9 2026-07-19
JIA5070 PSA Airlines 9 2026-07-24
JIA5041 PSA Airlines 9 2026-07-04
JIA5282 PSA Airlines 8 2026-05-31
JIA5226 - 8 2026-07-09
JIA5114 - 8 2026-07-04
JIA5550 PSA Airlines 7 2026-07-21
JIA5388 PSA Airlines 7 2026-07-24
JIA5347 PSA Airlines 7 2026-07-16
JIA5229 - 7 2026-07-09
JIA5159 - 7 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 JIA5333 GSP → PHL Jul 26, 18:35 UTCJul 26, 21:05 UTC2h 30m
2026-07-26 JIA5411 YYZ → PHL Jul 26, 16:25 UTCJul 26, 17:15 UTC50m
2026-07-26 JIA9951 PIA → PHL Jul 26, 14:05 UTCJul 26, 15:25 UTC1h 20m
2026-07-25 JIA5158 PHL → BHM Jul 25, 23:15 UTCJul 26, 00:20 UTC1h 5m
2026-07-25 JIA5198 STL → PHL Jul 25, 21:15 UTCJul 25, 22:15 UTC1h 0m
2026-07-25 JIA5198 STL → PHL Jul 25, 21:13 UTCJul 25, 22:14 UTC1h 1m
2026-07-25 JIA5113 GSP → DCA Jul 25, 17:50 UTCJul 25, 18:50 UTC1h 0m
2026-07-25 JIA5113 GSP → DCA Jul 25, 15:40 UTCJul 25, 16:35 UTC55m
2026-07-25 JIA5399 SBN → CLT Jul 25, 10:15 UTCJul 25, 11:35 UTC1h 20m
2026-07-25 JIA5399 SBN → CLT Jul 25, 10:09 UTCJul 25, 11:36 UTC1h 27m
2026-07-25 JIA5053 DCA → SYR Jul 25, 01:05 UTCJul 25, 02:25 UTC1h 20m
2026-07-24 JIA5339 CLT → SDF Jul 24, 22:45 UTCJul 24, 23:45 UTC1h 0m
2026-07-24 JIA5339 CLT → SDF Jul 24, 21:10 UTCJul 24, 22:00 UTC50m
2026-07-24 JIA5388 ALB → PHL Jul 24, 17:50 UTCJul 24, 19:15 UTC1h 25m
2026-07-24 JIA5388 ALB → PHL Jul 24, 17:43 UTCJul 24, 19:12 UTC1h 29m
2026-07-24 JIA5388 ALB → PHL Jul 24, 15:30 UTCJul 24, 16:55 UTC1h 25m
2026-07-24 JIA5070 HPN → CLT Jul 24, 01:25 UTCJul 24, 02:50 UTC1h 25m
2026-07-23 JIA5236 DCA → HPN Jul 23, 23:40 UTCJul 24, 00:35 UTC55m
2026-07-23 JIA5236 DCA → HPN Jul 23, 23:39 UTCJul 24, 00:34 UTC55m
2026-07-23 JIA5085 ALB → PHL Jul 23, 21:10 UTCJul 23, 22:30 UTC1h 20m
2026-07-23 JIA5085 ALB → PHL Jul 23, 18:50 UTCJul 23, 20:15 UTC1h 25m
2026-07-23 JIA5031 GSP → DCA Jul 23, 10:50 UTCJul 23, 12:00 UTC1h 10m
2026-07-23 JIA5497 CLT → MSY Jul 23, 01:20 UTCJul 23, 02:15 UTC55m
2026-07-22 JIA5607 PHL → ATL Jul 22, 19:05 UTCJul 22, 21:10 UTC2h 5m
2026-07-22 JIA5607 PHL → ATL Jul 22, 15:50 UTCJul 22, 17:40 UTC1h 50m
2026-07-22 JIA5261 DAY → DCA Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-22 JIA5162 DTW → PHL Jul 22, 03:30 UTCJul 22, 04:35 UTC1h 5m
2026-07-21 JIA5516 SDF → PHL Jul 21, 15:55 UTCJul 21, 17:05 UTC1h 10m
2026-07-21 JIA5550 BDL → CLT Jul 21, 13:07 UTCJul 21, 14:56 UTC1h 49m
2026-07-21 JIA5550 BDL → CLT Jul 21, 13:10 UTCJul 21, 15:00 UTC1h 50m
2026-07-21 JIA5062 CAK → DCA Jul 21, 09:45 UTCJul 21, 10:25 UTC40m
2026-07-20 JIA5305 DCA → CAK Jul 20, 23:25 UTCJul 21, 00:15 UTC49m
2026-07-20 JIA5292 - Jul 20, 19:50 UTCJul 20, 21:40 UTC1h 50m
2026-07-20 JIA5292 DSM → DCA Jul 20, 19:48 UTCJul 20, 21:38 UTC1h 50m
2026-07-20 JIA5292 DCA → DSM Jul 20, 16:25 UTCJul 20, 18:30 UTC2h 5m
2026-07-20 JIA5235 - Jul 20, 13:35 UTCJul 20, 14:25 UTC50m
2026-07-20 JIA5235 - Jul 20, 11:50 UTCJul 20, 12:30 UTC40m
2026-07-20 JIA5034 - Jul 20, 09:15 UTCJul 20, 10:10 UTC55m
2026-07-20 JIA5028 - Jul 20, 04:40 UTCJul 20, 05:30 UTC50m
2026-07-20 JIA5670 MSY → DCA Jul 20, 01:00 UTCJul 20, 03:20 UTC2h 20m
2026-07-19 JIA5670 DCA → MSY Jul 19, 21:15 UTCJul 19, 23:40 UTC2h 25m
2026-07-19 JIA5336 CLT → IAD Jul 19, 19:05 UTCJul 19, 19:40 UTC35m
2026-07-19 JIA5336 CLT → IAD Jul 19, 19:02 UTCJul 19, 19:35 UTC33m
2026-07-19 JIA5326 DCA → MHT Jul 19, 17:10 UTCJul 19, 17:55 UTC45m
2026-07-19 JIA5077 - Jul 19, 00:45 UTCJul 19, 01:35 UTC50m
2026-07-18 JIA5077 - Jul 18, 23:00 UTCJul 18, 23:55 UTC55m
2026-07-18 JIA5444 - Jul 18, 19:20 UTCJul 18, 21:05 UTC1h 45m
2026-07-18 JIA5444 - Jul 18, 16:25 UTCJul 18, 18:15 UTC1h 50m
2026-07-18 JIA5219 - Jul 18, 14:10 UTCJul 18, 15:00 UTC50m
2026-07-18 JIA5219 IAD → CLT Jul 18, 14:07 UTCJul 18, 14:59 UTC52m

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 Jul 26, 21:05 UTC.
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 JIA5339, JIA5236, JIA5061, JIA5219, JIA5032.