Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A584BC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N455AN · AIRBUS A-321neo · operated by AMERICAN AIRLINES INC

Hex
A584BC
Octal
51302274
Decimal
10,847,420
Country
US
Tail
N455AN
Type
A21N
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
493
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S A584BC.

Country allocation

The ICAO 24-bit address A584BC 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
AAL59 - 12 2026-07-17
AAL246 American Airlines 10 2026-05-14
AAL664 American Airlines 8 2026-07-17
AAL297 - 8 2026-06-17
AAL2853 American Airlines 8 2026-05-19
AAL918 - 7 2026-06-24
AAL645 American Airlines 7 2026-06-10
AAL385 American Airlines 7 2026-06-04
AAL2660 - 7 2026-06-19
AAL500 - 6 2026-07-16
AAL3172 - 6 2026-07-15
AAL1562 - 6 2026-07-14
AAL1558 - 6 2026-07-01
AAL144 - 6 2026-07-04
AAL1307 - 6 2026-07-02
AAL1226 - 6 2026-07-06
AAL824 American Airlines 5 2026-07-19
AAL692 American Airlines 5 2026-05-07
AAL528 American Airlines 5 2026-07-22
AAL428 - 5 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2045 MIA → SFO Jul 26, 21:10 UTCJul 26, 23:00 UTC1h 50m
2026-07-26 AAL1151 ATL → MIA Jul 26, 14:25 UTCJul 26, 19:00 UTC4h 35m
2026-07-26 AAL1151 ATL → MIA Jul 26, 14:21 UTCJul 26, 19:01 UTC4h 40m
2026-07-25 AAL1284 IND → PHL Jul 25, 22:57 UTCJul 26, 03:51 UTC4h 54m
2026-07-25 AAL1284 IND → PHL Jul 25, 23:00 UTCJul 26, 03:55 UTC4h 55m
2026-07-25 AAL779 BOS → LAX Jul 25, 16:55 UTCJul 25, 21:05 UTC4h 10m
2026-07-25 AAL779 BOS → LAX Jul 25, 16:51 UTCJul 25, 20:59 UTC4h 8m
2026-07-25 AAL1969 SRQ → ORD Jul 25, 12:20 UTCJul 25, 14:35 UTC2h 15m
2026-07-25 AAL1969 SRQ → ORD Jul 25, 12:19 UTCJul 25, 14:29 UTC2h 10m
2026-07-25 AAL2343 ORD → SAN Jul 25, 03:10 UTCJul 25, 05:30 UTC2h 20m
2026-07-24 AAL3124 DFW → MFE Jul 24, 20:20 UTCJul 25, 01:00 UTC4h 40m
2026-07-24 AAL3124 DFW → MFE Jul 24, 20:18 UTCJul 25, 01:13 UTC4h 55m
2026-07-24 AAL843 PHL → IND Jul 24, 12:55 UTCJul 24, 17:40 UTC4h 45m
2026-07-24 AAL1545 PWM → DCA Jul 24, 05:45 UTCJul 24, 10:50 UTC5h 5m
2026-07-23 AAL2663 PHL → SFO Jul 23, 21:50 UTCJul 24, 03:30 UTC5h 40m
2026-07-23 AAL1528 MIA → PHL Jul 23, 15:30 UTCJul 23, 20:00 UTC4h 30m
2026-07-23 AAL3328 DFW → LAX Jul 23, 00:35 UTCJul 23, 05:15 UTC4h 40m
2026-07-22 AAL1335 MIA → DCA Jul 22, 19:45 UTCJul 22, 22:00 UTC2h 15m
2026-07-22 AAL1335 MIA → DCA Jul 22, 18:52 UTCJul 22, 22:02 UTC3h 10m
2026-07-22 AAL528 PHX → PHL Jul 22, 14:15 UTCJul 22, 16:50 UTC2h 35m
2026-07-22 AAL770 CLT → MIA Jul 22, 11:20 UTCJul 22, 12:45 UTC1h 25m
2026-07-22 AAL1362 LAX → PHX Jul 22, 02:55 UTCJul 22, 03:55 UTC1h 0m
2026-07-22 AAL1362 LAX → PHX Jul 22, 02:54 UTCJul 22, 03:50 UTC56m
2026-07-21 AAL529 ORD → LAX Jul 21, 21:15 UTCJul 22, 00:55 UTC3h 40m
2026-07-21 AAL836 LGA → IAH Jul 21, 17:30 UTCJul 21, 19:40 UTC2h 10m
2026-07-21 AAL2530 PHL → TPA Jul 21, 14:25 UTCJul 21, 15:45 UTC1h 20m
2026-07-21 AAL2530 PHL → TPA Jul 21, 14:21 UTCJul 21, 15:44 UTC1h 23m
2026-07-21 AAL1354 LGA → MIA Jul 21, 06:25 UTCJul 21, 12:00 UTC5h 35m
2026-07-21 AAL1354 LGA → MIA Jul 21, 06:23 UTCJul 21, 11:49 UTC5h 26m
2026-07-20 AAL1354 LGA → MIA Jul 20, 23:05 UTCJul 21, 05:10 UTC6h 4m
2026-07-20 AAL2608 RDU → TPA Jul 20, 17:15 UTCJul 20, 21:00 UTC3h 45m
2026-07-20 AAL2070 CLT → LAX Jul 20, 11:25 UTCJul 20, 15:45 UTC4h 20m
2026-07-19 AAL1988 - Jul 19, 21:10 UTCJul 20, 01:40 UTC4h 30m
2026-07-19 AAL824 PHL → LAX Jul 19, 13:00 UTCJul 19, 17:50 UTC4h 50m
2026-07-19 AAL1333 SDF → MIA Jul 19, 01:15 UTCJul 19, 01:20 UTC5m
2026-07-19 AAL1333 SDF → MIA Jul 19, 00:30 UTCJul 19, 00:35 UTC5m
2026-07-18 AAL1333 SDF → MIA Jul 18, 23:40 UTCJul 18, 23:45 UTC5m
2026-07-18 AAL1528 MIA → PHL Jul 18, 16:05 UTCJul 18, 21:05 UTC5h 0m
2026-07-18 AAL14 - Jul 18, 12:05 UTCJul 18, 12:45 UTC40m
2026-07-17 AAL847 - Jul 17, 15:55 UTCJul 17, 17:15 UTC1h 20m
2026-07-17 AAL847 PHX → OGG Jul 17, 15:54 UTCJul 17, 21:55 UTC6h 1m
2026-07-17 AAL664 LAS → PHL Jul 17, 12:00 UTCJul 17, 13:20 UTC1h 20m
2026-07-17 AAL664 LAS → PHL Jul 17, 07:55 UTCJul 17, 08:04 UTC10m
2026-07-17 AAL59 - Jul 17, 01:49 UTCJul 17, 01:55 UTC5m
2026-07-16 AAL59 - Jul 16, 20:45 UTCJul 16, 21:10 UTC25m
2026-07-16 AAL59 LAX → KOA Jul 16, 20:40 UTCJul 17, 01:57 UTC5h 17m
2026-07-16 AAL500 DFW → LAX Jul 16, 15:19 UTCJul 16, 18:00 UTC2h 40m
2026-07-16 AAL1597 LGA → DFW Jul 16, 10:40 UTCJul 16, 13:38 UTC2h 58m
2026-07-16 AAL1597 LGA → DFW Jul 16, 10:45 UTCJul 16, 13:45 UTC3h 0m
2026-07-16 AAL2708 DFW → LGA Jul 16, 01:15 UTCJul 16, 04:30 UTC3h 15m

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 N455AN page for operator, model, and routing details .

Mode-S A584BC frequently asked

What is Mode-S code A584BC?
A584BC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N455AN.
Where is Mode-S A584BC registered?
Mode-S code A584BC 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 A584BC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A584BC, octal 51302274, decimal 10,847,420.
What flights does A584BC operate?
Mode-S A584BC has broadcast 20 distinct callsigns, including AAL59, AAL246, AAL664, AAL297, AAL2853.