Apparatus

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sensors Mode-S transponder

A791C0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N587UW · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
A791C0
Octal
51710700
Decimal
10,981,824
Country
US
Tail
N587UW
Type
A321
Transponder active on ground
Flights observed
570
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:50 UTC

Last known position

Most recent position reported by Mode-S A791C0.

Country allocation

The ICAO 24-bit address A791C0 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
AAL1919 - 8 2026-06-28
AAL3055 - 7 2026-07-23
AAL1863 - 7 2026-07-13
AAL3195 - 6 2026-07-16
AAL2947 - 6 2026-07-06
AAL2742 American Airlines 6 2026-07-23
AAL1012 American Airlines 6 2026-04-21
AAL3300 American Airlines 5 2026-05-07
AAL2900 American Airlines 5 2026-05-28
AAL2517 American Airlines 5 2026-04-15
AAL1563 American Airlines 5 2026-04-14
AAL1537 American Airlines 5 2026-06-12
AAL857 American Airlines 4 2026-06-17
AAL609 - 4 2026-06-20
AAL2890 American Airlines 4 2026-05-10
AAL2710 American Airlines 4 2026-05-10
AAL2501 - 4 2026-07-04
AAL2378 - 4 2026-07-18
AAL2193 American Airlines 4 2026-05-12
AAL1850 American Airlines 4 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2367 EWR → DFW Jul 26, 19:15 UTCJul 26, 20:50 UTC1h 35m
2026-07-26 AAL2367 EWR → DFW Jul 26, 15:25 UTCJul 26, 15:50 UTC25m
2026-07-26 AAL873 MHT → CLT Jul 26, 10:20 UTCJul 26, 13:15 UTC2h 55m
2026-07-26 AAL1054 MIA → BOS Jul 26, 03:10 UTCJul 26, 05:55 UTC2h 45m
2026-07-26 AAL1054 MIA → BOS Jul 26, 03:07 UTCJul 26, 05:50 UTC2h 43m
2026-07-25 AAL605 MIA → LGA Jul 25, 23:00 UTCJul 26, 01:30 UTC2h 30m
2026-07-25 AAL3114 BJX → DFW Jul 25, 16:45 UTCJul 25, 18:50 UTC2h 5m
2026-07-25 AAL3114 BJX → DFW Jul 25, 13:05 UTCJul 25, 15:20 UTC2h 15m
2026-07-24 AAL2069 SLC → ORD Jul 24, 23:05 UTCJul 25, 01:20 UTC2h 15m
2026-07-24 AAL2069 SLC → ORD Jul 24, 23:04 UTCJul 25, 01:23 UTC2h 19m
2026-07-24 AAL2069 SLC → ORD Jul 24, 19:20 UTCJul 24, 21:25 UTC2h 5m
2026-07-24 AAL3053 DFW → RTB Jul 24, 14:40 UTCJul 24, 17:45 UTC3h 5m
2026-07-24 AAL2928 MTY → JFK Jul 24, 12:10 UTCJul 24, 12:50 UTC40m
2026-07-23 AAL2629 ORD → LGA Jul 23, 23:55 UTCJul 24, 02:10 UTC2h 15m
2026-07-23 AAL2629 ORD → LGA Jul 23, 23:52 UTCJul 24, 02:15 UTC2h 23m
2026-07-23 AAL1167 ORD → DCA Jul 23, 19:50 UTCJul 23, 22:15 UTC2h 25m
2026-07-23 AAL3055 - Jul 23, 15:25 UTCJul 23, 17:50 UTC2h 25m
2026-07-23 AAL3055 - Jul 23, 11:25 UTCJul 23, 13:50 UTC2h 25m
2026-07-23 AAL2742 DCA → LGA Jul 23, 07:15 UTCJul 23, 09:50 UTC2h 35m
2026-07-23 AAL2742 DCA → LGA Jul 23, 05:40 UTCJul 23, 05:55 UTC15m
2026-07-22 AAL702 DFW → SJU Jul 22, 23:20 UTCJul 23, 03:50 UTC4h 30m
2026-07-22 AAL707 SEA → DFW Jul 22, 17:40 UTCJul 22, 21:10 UTC3h 30m
2026-07-22 AAL707 SEA → DFW Jul 22, 17:36 UTCJul 22, 21:05 UTC3h 29m
2026-07-22 AAL707 DFW → SEA Jul 22, 12:30 UTCJul 22, 15:55 UTC3h 25m
2026-07-22 AAL3314 SMF → DFW Jul 22, 02:30 UTCJul 22, 05:25 UTC2h 55m
2026-07-21 AAL436 TPA → CLT Jul 21, 21:45 UTCJul 22, 01:00 UTC3h 15m
2026-07-21 AAL436 TPA → CLT Jul 21, 17:25 UTCJul 21, 20:25 UTC3h 0m
2026-07-21 AAL2521 YYC → DFW Jul 21, 12:55 UTCJul 21, 15:55 UTC3h 0m
2026-07-21 AAL511 PHL → ORD Jul 21, 00:30 UTCJul 21, 03:45 UTC3h 15m
2026-07-20 AAL3285 DEN → DFW Jul 20, 20:35 UTCJul 20, 22:55 UTC2h 20m
2026-07-20 AAL3285 DEN → DFW Jul 20, 20:32 UTCJul 20, 22:51 UTC2h 19m
2026-07-20 AAL3285 DEN → DFW Jul 20, 16:40 UTCJul 20, 18:55 UTC2h 15m
2026-07-20 AAL1412 - Jul 20, 12:40 UTCJul 20, 15:15 UTC2h 35m
2026-07-20 AAL3036 - Jul 20, 01:40 UTCJul 20, 05:40 UTC4h 0m
2026-07-19 AAL2270 - Jul 19, 22:40 UTCJul 20, 00:05 UTC1h 25m
2026-07-19 AAL2270 - Jul 19, 20:05 UTCJul 19, 21:25 UTC1h 20m
2026-07-19 AAL1651 - Jul 19, 14:15 UTCJul 19, 18:35 UTC4h 20m
2026-07-19 AAL2457 ORD → SAN Jul 19, 02:45 UTCJul 19, 06:25 UTC3h 40m
2026-07-18 AAL3134 PVR → ORD Jul 18, 21:00 UTCJul 19, 00:55 UTC3h 55m
2026-07-18 AAL2041 - Jul 18, 16:50 UTCJul 18, 19:25 UTC2h 35m
2026-07-18 AAL2604 - Jul 18, 13:15 UTCJul 18, 15:25 UTC2h 10m
2026-07-18 AAL2378 - Jul 18, 04:30 UTCJul 18, 06:40 UTC2h 10m
2026-07-18 AAL2378 DFW → SLC Jul 18, 04:29 UTCJul 18, 06:35 UTC2h 6m
2026-07-18 AAL3286 LAS → DFW Jul 18, 00:25 UTCJul 18, 03:05 UTC2h 41m
2026-07-17 AAL750 - Jul 17, 19:25 UTCJul 17, 23:20 UTC3h 55m
2026-07-17 AAL750 CLT → LAS Jul 17, 19:20 UTCJul 17, 23:18 UTC3h 58m
2026-07-17 AAL1857 - Jul 17, 15:40 UTCJul 17, 17:44 UTC2h 5m
2026-07-17 AAL1857 DFW → CLT Jul 17, 15:39 UTCJul 17, 17:43 UTC2h 4m
2026-07-17 AAL599 MCO → DFW Jul 17, 11:45 UTCJul 17, 14:04 UTC2h 20m
2026-07-17 AAL486 ORD → MCO Jul 17, 00:30 UTCJul 17, 02:45 UTC2h 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 N587UW page for operator, model, and routing details .

Mode-S A791C0 frequently asked

What is Mode-S code A791C0?
A791C0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N587UW.
Where is Mode-S A791C0 registered?
Mode-S code A791C0 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 A791C0 broadcasting right now?
Mode-S A791C0 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A791C0, octal 51710700, decimal 10,981,824.
What flights does A791C0 operate?
Mode-S A791C0 has broadcast 20 distinct callsigns, including AAL1919, AAL3055, AAL1863, AAL3195, AAL2947.