Apparatus

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sensors Mode-S transponder

A6E89F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N544UW · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
A6E89F
Octal
51564237
Decimal
10,938,527
Country
US
Tail
N544UW
Type
A321
Broadcasting now · callsign AAL2149 · 22,600 ft
Flights observed
454
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Current position

A6E89F is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A6E89F 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
AAL757 American Airlines 5 2026-04-17
AAL661 American Airlines 5 2026-04-20
AAL3114 American Airlines 5 2026-06-13
AAL2719 American Airlines 5 2026-05-15
AAL2605 - 5 2026-06-19
AAL2284 - 5 2026-06-25
AAL2069 American Airlines 5 2026-06-13
AAL1827 American Airlines 5 2026-06-10
AAL1673 American Airlines 5 2026-07-07
AAL3062 - 4 2026-04-14
AAL2977 - 4 2026-06-30
AAL2319 - 4 2026-07-06
AAL2302 American Airlines 4 2026-04-15
AAL2101 - 4 2026-07-07
AAL2036 American Airlines 4 2026-04-13
AAL1667 American Airlines 4 2026-04-23
AAL1625 American Airlines 4 2026-05-25
AAL1206 - 4 2026-07-02
AAL751 - 3 2026-07-06
AAL727 American Airlines 3 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AAL1569 - Jul 13, 21:35 UTCJul 14, 02:05 UTC4h 30m
2026-07-13 AAL1569 RDU → LAX Jul 13, 21:34 UTCJul 14, 02:06 UTC4h 32m
2026-07-13 AAL543 - Jul 13, 16:15 UTCJul 13, 20:15 UTC4h 0m
2026-07-13 AAL2658 PDX → PHX Jul 13, 12:30 UTCJul 13, 14:50 UTC2h 20m
2026-07-13 AAL561 - Jul 13, 06:35 UTCJul 13, 08:40 UTC2h 5m
2026-07-12 AAL3012 - Jul 12, 23:10 UTCJul 13, 02:30 UTC3h 20m
2026-07-12 AAL753 - Jul 12, 17:01 UTCJul 12, 21:05 UTC4h 5m
2026-07-11 AAL2766 - Jul 11, 23:55 UTCJul 12, 02:25 UTC2h 30m
2026-07-11 AAL2242 - Jul 11, 19:45 UTCJul 11, 22:20 UTC2h 35m
2026-07-11 AAL2242 DFW → ONT Jul 11, 15:55 UTCJul 11, 18:20 UTC2h 25m
2026-07-11 AAL2558 PPM → DFW Jul 11, 12:00 UTCJul 11, 14:30 UTC2h 30m
2026-07-11 AAL2558 FLL → DFW Jul 11, 11:56 UTCJul 11, 14:23 UTC2h 27m
2026-07-10 AAL2185 PHL → FLL Jul 10, 22:45 UTCJul 11, 01:15 UTC2h 30m
2026-07-10 AAL2175 - Jul 10, 17:40 UTCJul 10, 20:55 UTC3h 15m
2026-07-10 AAL2175 CUN → PHL Jul 10, 17:37 UTCJul 10, 20:56 UTC3h 19m
2026-07-10 AAL1262 PHL → CUN Jul 10, 13:00 UTCJul 10, 16:15 UTC3h 15m
2026-07-10 AAL1262 PHL → PHL Jul 10, 12:35 UTCJul 10, 12:40 UTC5m
2026-07-10 AAL437 LAS → PHL Jul 10, 06:30 UTCJul 10, 10:45 UTC4h 15m
2026-07-10 AAL2785 - Jul 10, 04:25 UTCJul 10, 05:15 UTC50m
2026-07-09 AAL2221 - Jul 9, 22:40 UTCJul 10, 02:40 UTC4h 0m
2026-07-09 AAL1373 - Jul 9, 17:10 UTCJul 9, 20:55 UTC3h 45m
2026-07-09 AAL2601 - Jul 9, 11:50 UTCJul 9, 15:40 UTC3h 50m
2026-07-08 AAL543 PHX → RDU Jul 8, 18:30 UTCJul 8, 22:25 UTC3h 55m
2026-07-08 AAL2027 - Jul 8, 16:15 UTCJul 8, 17:15 UTC1h 0m
2026-07-08 AAL2027 LAX → PHX Jul 8, 16:12 UTCJul 8, 17:12 UTC1h 0m
2026-07-08 AAL1205 DFW → AUS Jul 8, 00:35 UTCJul 8, 05:05 UTC4h 30m
2026-07-07 AAL1673 PHL → MCO Jul 7, 23:00 UTCJul 7, 23:05 UTC5m
2026-07-07 AAL1673 PHL → MCO Jul 7, 20:45 UTCJul 7, 23:05 UTC2h 20m
2026-07-07 AAL1673 PHL → MCO Jul 7, 20:44 UTCJul 7, 22:44 UTC2h 0m
2026-07-07 AAL1673 PHL → MCO Jul 7, 20:00 UTCJul 7, 20:05 UTC5m
2026-07-07 AAL2101 MCO → PHL Jul 7, 16:20 UTCJul 7, 18:25 UTC2h 5m
2026-07-07 AAL2101 - Jul 7, 12:55 UTCJul 7, 14:50 UTC1h 55m
2026-07-07 AAL2101 PHL → PHL Jul 7, 12:15 UTCJul 7, 12:20 UTC5m
2026-07-07 AAL2101 PHL → PHL Jul 7, 12:00 UTCJul 7, 12:05 UTC5m
2026-07-07 AAL2522 BZN → DFW Jul 7, 06:45 UTCJul 7, 11:15 UTC4h 30m
2026-07-06 AAL751 - Jul 6, 23:25 UTCJul 7, 04:25 UTC5h 0m
2026-07-06 AAL751 CLT → SEA Jul 6, 23:24 UTCJul 7, 04:21 UTC4h 57m
2026-07-06 AAL1448 - Jul 6, 20:05 UTCJul 6, 21:40 UTC1h 35m
2026-07-06 AAL1448 - Jul 6, 16:30 UTCJul 6, 18:40 UTC2h 10m
2026-07-06 AAL3222 - Jul 6, 13:45 UTCJul 6, 15:05 UTC1h 20m
2026-07-06 AAL1148 PHX → ORD Jul 6, 08:00 UTCJul 6, 11:05 UTC3h 5m
2026-07-06 AAL1148 PHX → ORD Jul 6, 07:57 UTCJul 6, 11:04 UTC3h 7m
2026-07-06 AAL2319 - Jul 6, 04:35 UTCJul 6, 06:35 UTC2h 0m
2026-07-06 AAL3232 PHX → DFW Jul 6, 00:40 UTCJul 6, 02:40 UTC2h 0m
2026-07-05 AAL2972 BNA → PHX Jul 5, 20:15 UTCJul 5, 23:25 UTC3h 10m
2026-07-05 AAL2972 BNA → PHX Jul 5, 20:12 UTCJul 5, 23:27 UTC3h 15m
2026-07-05 AAL3047 - Jul 5, 18:05 UTCJul 5, 19:05 UTC1h 0m
2026-07-05 AAL381 - Jul 5, 12:25 UTCJul 5, 16:45 UTC4h 20m
2026-07-04 AAL2529 - Jul 4, 15:25 UTCJul 4, 20:15 UTC4h 50m
2026-07-04 AAL2715 PHL → TPA Jul 4, 12:23 UTCJul 4, 14:00 UTC1h 37m

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 N544UW page for operator, model, and routing details .

Mode-S A6E89F frequently asked

What is Mode-S code A6E89F?
A6E89F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N544UW.
Where is Mode-S A6E89F registered?
Mode-S code A6E89F 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 A6E89F broadcasting right now?
Yes. Mode-S A6E89F is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6E89F, octal 51564237, decimal 10,938,527.
What flights does A6E89F operate?
Mode-S A6E89F has broadcast 20 distinct callsigns, including AAL757, AAL661, AAL3114, AAL2719, AAL2605.