Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A4F59C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N419AN · AIRBUS A-321neo · operated by AMERICAN AIRLINES INC

Hex
A4F59C
Octal
51172634
Decimal
10,810,780
Country
US
Tail
N419AN
Type
A21N
No current signal · last broadcast 12d ago
Flights observed
357
Distinct callsigns
20
Country
US
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S A4F59C.

Country allocation

The ICAO 24-bit address A4F59C 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
AAL664 - 6 2026-07-05
AAL59 - 6 2026-07-05
AAL1354 - 6 2026-07-18
AAL2669 American Airlines 5 2026-07-21
AAL1307 - 5 2026-06-25
AAL836 - 4 2026-07-16
AAL693 American Airlines 4 2026-07-24
AAL622 American Airlines 4 2026-06-21
AAL565 American Airlines 4 2026-05-05
AAL385 - 4 2026-06-12
AAL3166 American Airlines 4 2026-06-09
AAL2408 American Airlines 4 2026-07-26
AAL2005 American Airlines 4 2026-05-26
AAL1981 - 4 2026-07-11
AAL1416 - 4 2026-07-01
AAL119 - 4 2026-06-29
AAL1131 American Airlines 4 2026-06-20
AAL1118 - 4 2026-06-28
AAL918 - 3 2026-06-26
AAL663 American Airlines 3 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2994 RSW → ORD Jul 26, 22:10 UTCJul 26, 23:00 UTC50m
2026-07-26 AAL2408 NAS → LGA Jul 26, 15:20 UTCJul 26, 20:10 UTC4h 50m
2026-07-26 AAL2764 PHL → BOS Jul 26, 12:19 UTCJul 26, 13:18 UTC59m
2026-07-26 AAL2764 PHL → BOS Jul 26, 12:20 UTCJul 26, 13:20 UTC1h 0m
2026-07-25 AAL366 RDU → LGA Jul 25, 20:10 UTCJul 26, 00:50 UTC4h 40m
2026-07-25 AAL2820 DFW → SFO Jul 25, 14:05 UTCJul 25, 18:25 UTC4h 20m
2026-07-25 AAL2758 SAN → PHL Jul 25, 07:45 UTCJul 25, 12:20 UTC4h 35m
2026-07-25 AAL164 SFO → JFK Jul 25, 05:25 UTCJul 25, 06:10 UTC45m
2026-07-25 AAL164 SFO → JFK Jul 25, 01:25 UTCJul 25, 01:40 UTC15m
2026-07-24 AAL693 PHL → CLT Jul 24, 17:05 UTCJul 24, 23:10 UTC6h 5m
2026-07-24 AAL1854 ORD → PHL Jul 24, 11:35 UTCJul 24, 13:30 UTC1h 55m
2026-07-24 AAL3136 DFW → LAX Jul 24, 07:25 UTCJul 24, 09:55 UTC2h 30m
2026-07-24 AAL2197 SJC → PHX Jul 24, 00:50 UTCJul 24, 05:50 UTC5h 0m
2026-07-23 AAL1100 BNA → DFW Jul 23, 19:40 UTCJul 23, 22:15 UTC2h 35m
2026-07-23 AAL1100 BNA → DFW Jul 23, 19:36 UTCJul 23, 22:19 UTC2h 43m
2026-07-23 AAL2719 RIC → DFW Jul 23, 15:45 UTCJul 23, 17:45 UTC2h 0m
2026-07-22 AAL2927 DFW → TUS Jul 22, 20:55 UTCJul 23, 01:30 UTC4h 35m
2026-07-22 AAL2927 DFW → TUS Jul 22, 15:10 UTCJul 22, 19:00 UTC3h 50m
2026-07-22 AAL2927 DFW → TUS Jul 22, 15:07 UTCJul 22, 19:14 UTC4h 7m
2026-07-22 AAL818 PHX → CLT Jul 22, 01:25 UTCJul 22, 03:20 UTC1h 55m
2026-07-21 AAL2669 PHX → EWR Jul 21, 21:00 UTCJul 21, 23:40 UTC2h 40m
2026-07-21 AAL2669 PHX → EWR Jul 21, 20:58 UTCJul 21, 23:37 UTC2h 39m
2026-07-21 AAL2669 PHX → EWR Jul 21, 16:55 UTCJul 21, 19:20 UTC2h 25m
2026-07-21 AAL484 CLT → EWR Jul 21, 12:30 UTCJul 21, 15:35 UTC3h 5m
2026-07-21 AAL1446 DFW → GEG Jul 21, 07:45 UTCJul 21, 10:45 UTC3h 0m
2026-07-21 AAL732R LAX → DFW Jul 21, 03:15 UTCJul 21, 06:00 UTC2h 45m
2026-07-21 AAL732R LAX → DFW Jul 21, 03:10 UTCJul 21, 06:02 UTC2h 52m
2026-07-20 AAL2197 SJC → PHX Jul 20, 00:15 UTCJul 20, 05:00 UTC4h 45m
2026-07-19 AAL3164 - Jul 19, 17:35 UTCJul 19, 22:30 UTC4h 55m
2026-07-19 AAL3164 LAX → PHL Jul 19, 17:32 UTCJul 19, 22:26 UTC4h 54m
2026-07-19 AAL607 MSY → CLT Jul 19, 11:20 UTCJul 19, 14:50 UTC3h 30m
2026-07-18 AAL1354 ANC → ORD Jul 18, 07:00 UTCJul 18, 12:40 UTC5h 40m
2026-07-17 AAL1354 - Jul 17, 22:45 UTCJul 18, 01:00 UTC2h 15m
2026-07-17 AAL1354 ANC → ORD Jul 17, 22:42 UTCJul 18, 04:50 UTC6h 8m
2026-07-17 AAL2608 RDU → TPA Jul 17, 17:30 UTCJul 17, 21:25 UTC3h 55m
2026-07-17 AAL2888 - Jul 17, 14:15 UTCJul 17, 15:00 UTC45m
2026-07-17 AAL2888 - Jul 17, 10:05 UTCJul 17, 10:20 UTC15m
2026-07-17 AAL1313 - Jul 17, 02:59 UTCJul 17, 08:15 UTC5h 15m
2026-07-17 AAL1313 LAX → HNL Jul 17, 02:55 UTCJul 17, 08:05 UTC5h 10m
2026-07-16 AAL529 - Jul 16, 21:10 UTCJul 17, 00:40 UTC3h 30m
2026-07-16 AAL836 - Jul 16, 17:30 UTCJul 16, 19:10 UTC1h 40m
2026-07-16 AAL836 CLT → ORD Jul 16, 17:24 UTCJul 16, 18:51 UTC1h 27m
2026-07-15 AAL2529 - Jul 15, 20:30 UTCJul 16, 01:00 UTC4h 30m
2026-07-15 AAL2529 - Jul 15, 13:50 UTCJul 15, 18:20 UTC4h 30m
2026-07-15 AAL1580 - Jul 15, 07:15 UTCJul 15, 12:00 UTC4h 45m
2026-07-15 AAL1580 - Jul 15, 00:40 UTCJul 15, 05:15 UTC4h 35m
2026-07-14 AAL1159 - Jul 14, 18:20 UTCJul 14, 22:40 UTC4h 20m
2026-07-14 AAL1035 - Jul 14, 11:30 UTCJul 14, 16:05 UTC4h 35m
2026-07-14 AAL1035 PHL → LAX Jul 14, 11:26 UTCJul 14, 16:00 UTC4h 34m
2026-07-14 AAL2045 SFO → PHL Jul 14, 04:35 UTCJul 14, 09:40 UTC5h 5m

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 N419AN page for operator, model, and routing details .

Mode-S A4F59C frequently asked

What is Mode-S code A4F59C?
A4F59C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N419AN.
Where is Mode-S A4F59C registered?
Mode-S code A4F59C 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 A4F59C broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4F59C, octal 51172634, decimal 10,810,780.
What flights does A4F59C operate?
Mode-S A4F59C has broadcast 20 distinct callsigns, including AAL664, AAL59, AAL1354, AAL2669, AAL1307.