Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A58873

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N456AN · AIRBUS A-321neo · operated by AMERICAN AIRLINES INC

Hex
A58873
Octal
51304163
Decimal
10,848,371
Country
US
Tail
N456AN
Type
A21N
No current signal · last broadcast Jul 26, 17:05 UTC
Flights observed
471
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 17:05 UTC

Last known position

Most recent position reported by Mode-S A58873.

Country allocation

The ICAO 24-bit address A58873 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
AAL663 - 9 2026-06-25
AAL2838 American Airlines 8 2026-05-09
AAL1787 American Airlines 8 2026-04-16
AAL1313 - 8 2026-06-28
AAL684 - 7 2026-07-07
AAL2045 American Airlines 7 2026-06-25
AAL1057 - 7 2026-07-03
AAL767 American Airlines 6 2026-04-16
AAL738 American Airlines 6 2026-07-19
AAL697 - 6 2026-07-06
AAL58 - 6 2026-06-26
AAL2888 - 6 2026-06-28
AAL2405 - 6 2026-07-13
AAL1538 - 6 2026-06-17
AAL59 American Airlines 5 2026-07-25
AAL2660 - 5 2026-07-07
AAL1528 American Airlines 5 2026-07-20
AAL143 - 5 2026-06-14
AAL664 American Airlines 4 2026-07-26
AAL567 American Airlines 4 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL847 CLT → PHL Jul 26, 15:50 UTCJul 26, 17:05 UTC1h 15m
2026-07-26 AAL664 LAS → PHL Jul 26, 11:45 UTCJul 26, 13:10 UTC1h 25m
2026-07-26 AAL664 LAS → PHL Jul 26, 07:50 UTCJul 26, 08:00 UTC10m
2026-07-25 AAL59 LAX → KOA Jul 25, 20:40 UTCJul 25, 21:10 UTC30m
2026-07-25 AAL59 LAX → KOA Jul 25, 20:36 UTCJul 26, 01:47 UTC5h 11m
2026-07-25 AAL843 PHL → IND Jul 25, 12:55 UTCJul 25, 17:25 UTC4h 30m
2026-07-25 AAL1824 MSY → PHL Jul 25, 00:50 UTCJul 25, 03:15 UTC2h 25m
2026-07-24 AAL1079 ORD → AUS Jul 24, 21:25 UTCJul 24, 23:35 UTC2h 10m
2026-07-24 AAL1079 ORD → AUS Jul 24, 21:24 UTCJul 24, 23:28 UTC2h 4m
2026-07-24 AAL646 PHL → MCO Jul 24, 15:35 UTCJul 24, 20:05 UTC4h 30m
2026-07-24 AAL1228 DFW → CLE Jul 24, 11:25 UTCJul 24, 13:30 UTC2h 5m
2026-07-24 AAL1118 DFW → BNA Jul 24, 05:15 UTCJul 24, 09:50 UTC4h 35m
2026-07-23 AAL266P LIH → LAX Jul 23, 21:45 UTCJul 24, 02:25 UTC4h 40m
2026-07-23 AAL266P LIH → LAX Jul 23, 21:32 UTCJul 24, 02:24 UTC4h 52m
2026-07-22 AAL119 DFW → OGG Jul 22, 16:00 UTCJul 22, 21:30 UTC5h 30m
2026-07-22 AAL2005 MCI → PHX Jul 22, 11:20 UTCJul 22, 13:55 UTC2h 35m
2026-07-21 AAL2994 RSW → ORD Jul 21, 22:50 UTCJul 22, 01:30 UTC2h 40m
2026-07-21 AAL1213 BWI → DFW Jul 21, 16:25 UTCJul 21, 20:35 UTC4h 10m
2026-07-21 AAL3044 PHX → MIA Jul 21, 12:55 UTCJul 21, 14:30 UTC1h 35m
2026-07-21 AAL1545 PWM → DCA Jul 21, 05:15 UTCJul 21, 10:25 UTC5h 10m
2026-07-20 AAL2663 PHL → SFO Jul 20, 22:20 UTCJul 21, 03:30 UTC5h 9m
2026-07-20 AAL1528 MIA → PHL Jul 20, 15:20 UTCJul 20, 20:15 UTC4h 55m
2026-07-19 AAL1578 DFW → MSP Jul 19, 22:05 UTCJul 20, 03:15 UTC5h 10m
2026-07-19 AAL12 - Jul 19, 15:20 UTCJul 19, 20:25 UTC5h 5m
2026-07-19 AAL12 LAX → BOS Jul 19, 15:16 UTCJul 19, 20:23 UTC5h 7m
2026-07-19 AAL738 LGA → IAH Jul 19, 02:45 UTCJul 19, 08:30 UTC5h 45m
2026-07-19 AAL738 LGA → IAH Jul 19, 02:46 UTCJul 19, 08:29 UTC5h 43m
2026-07-19 AAL738 LGA → IAH Jul 19, 02:20 UTCJul 19, 02:35 UTC15m
2026-07-19 AAL738 LGA → IAH Jul 19, 01:45 UTCJul 19, 01:50 UTC5m
2026-07-19 AAL738 LGA → IAH Jul 19, 01:30 UTCJul 19, 01:35 UTC5m
2026-07-19 AAL738 LGA → IAH Jul 19, 01:00 UTCJul 19, 01:15 UTC15m
2026-07-19 AAL433 DFW → LAX Jul 19, 00:05 UTCJul 19, 00:30 UTC25m
2026-07-18 AAL433 DFW → LAX Jul 18, 18:20 UTCJul 18, 23:15 UTC4h 55m
2026-07-18 AAL2462 PWM → DCA Jul 18, 12:50 UTCJul 18, 15:15 UTC2h 25m
2026-07-18 AAL3314 - Jul 18, 08:00 UTCJul 18, 10:50 UTC2h 50m
2026-07-18 AAL3314 DFW → SMF Jul 18, 03:45 UTCJul 18, 06:45 UTC3h 0m
2026-07-17 AAL757 SEA → DFW Jul 17, 22:35 UTCJul 18, 02:00 UTC3h 25m
2026-07-17 AAL757 SEA → DFW Jul 17, 22:33 UTCJul 18, 01:58 UTC3h 25m
2026-07-17 AAL757 - Jul 17, 17:30 UTCJul 17, 21:00 UTC3h 30m
2026-07-17 AAL1198 - Jul 17, 12:50 UTCJul 17, 14:44 UTC1h 55m
2026-07-17 AAL1198 SFO → DFW Jul 17, 12:45 UTCJul 17, 15:50 UTC3h 5m
2026-07-17 AAL3295 - Jul 17, 02:54 UTCJul 17, 08:04 UTC5h 10m
2026-07-17 AAL3295 PHL → PHL Jul 17, 02:25 UTCJul 17, 02:30 UTC5m
2026-07-17 AAL3295 PHL → PHL Jul 17, 01:35 UTCJul 17, 01:45 UTC10m
2026-07-17 AAL3090 LGA → MSY Jul 17, 01:05 UTCJul 17, 01:25 UTC20m
2026-07-16 AAL3090 LGA → MSY Jul 16, 20:25 UTCJul 17, 01:00 UTC4h 35m
2026-07-16 AAL3090 LGA → MSY Jul 16, 20:24 UTCJul 17, 01:01 UTC4h 37m
2026-07-16 AAL3090 PHL → PDX Jul 16, 13:20 UTCJul 16, 18:29 UTC5h 10m
2026-07-16 AAL1333 SAN → PHL Jul 16, 05:10 UTCJul 16, 09:55 UTC4h 45m
2026-07-15 AAL1333 PHL → SAN Jul 15, 22:55 UTCJul 16, 03:30 UTC4h 35m

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 N456AN page for operator, model, and routing details .

Mode-S A58873 frequently asked

What is Mode-S code A58873?
A58873 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N456AN.
Where is Mode-S A58873 registered?
Mode-S code A58873 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 A58873 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A58873, octal 51304163, decimal 10,848,371.
What flights does A58873 operate?
Mode-S A58873 has broadcast 20 distinct callsigns, including AAL663, AAL2838, AAL1787, AAL1313, AAL684.