Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0CFBD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N151UW · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
A0CFBD
Octal
50147675
Decimal
10,538,941
Country
US
Tail
N151UW
Type
A321
No current signal · last broadcast 2h ago
Flights observed
467
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A0CFBD.

Country allocation

The ICAO 24-bit address A0CFBD 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
AAL2117 - 7 2026-07-07
AAL60G American Airlines 5 2026-05-20
AAL3193 American Airlines 5 2026-05-01
AAL2615 - 5 2026-06-18
AAL1861 - 5 2026-06-23
AAL1283 American Airlines 5 2026-04-18
AAL3049 American Airlines 4 2026-05-11
AAL3035 American Airlines 4 2026-05-09
AAL2859 American Airlines 4 2026-05-16
AAL2602 - 4 2026-06-25
AAL2583 - 4 2026-07-14
AAL2029 - 4 2026-07-04
AAL1696 American Airlines 4 2026-05-23
AAL1644 - 4 2026-06-25
AAL1584 American Airlines 4 2026-06-06
AAL1459 - 4 2026-06-28
AAL1370 - 4 2026-07-13
AAL841 American Airlines 3 2026-07-04
AAL777 American Airlines 3 2026-04-13
AAL582 American Airlines 3 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL2762 - Jul 14, 19:00 UTCJul 14, 21:15 UTC2h 15m
2026-07-14 AAL2762 - Jul 14, 15:05 UTCJul 14, 17:30 UTC2h 25m
2026-07-14 AAL2583 - Jul 14, 12:05 UTCJul 14, 13:30 UTC1h 25m
2026-07-13 AAL1370 PHX → BNA Jul 13, 23:45 UTCJul 14, 03:15 UTC3h 30m
2026-07-13 AAL1370 PHX → BNA Jul 13, 23:44 UTCJul 14, 03:12 UTC3h 28m
2026-07-13 AAL3203 PHL → PHX Jul 13, 17:40 UTCJul 13, 21:55 UTC4h 15m
2026-07-13 AAL2783 - Jul 13, 15:15 UTCJul 13, 16:15 UTC1h 0m
2026-07-13 AAL2783 BOS → PHL Jul 13, 15:15 UTCJul 13, 16:18 UTC1h 3m
2026-07-13 AAL2783 PHL → BOS Jul 13, 12:40 UTCJul 13, 13:30 UTC50m
2026-07-12 AAL2534 SEA → PHL Jul 12, 19:55 UTCJul 13, 00:30 UTC4h 35m
2026-07-12 AAL2534 - Jul 12, 12:45 UTCJul 12, 17:55 UTC5h 10m
2026-07-12 AAL2534 PHL → PHL Jul 12, 12:35 UTCJul 12, 12:40 UTC5m
2026-07-12 AAL2542 - Jul 12, 02:40 UTCJul 12, 05:45 UTC3h 5m
2026-07-11 AAL2376 - Jul 11, 23:00 UTCJul 12, 01:20 UTC2h 20m
2026-07-11 AAL2376 DFW → LAS Jul 11, 19:25 UTCJul 11, 21:45 UTC2h 20m
2026-07-10 AAL2669 - Jul 10, 20:50 UTCJul 10, 23:20 UTC2h 30m
2026-07-10 AAL2669 - Jul 10, 16:35 UTCJul 10, 19:10 UTC2h 35m
2026-07-09 AAL1304 - Jul 9, 19:15 UTCJul 9, 20:35 UTC1h 20m
2026-07-09 AAL1304 - Jul 9, 14:05 UTCJul 9, 15:00 UTC55m
2026-07-07 AAL2117 MCO → DFW Jul 7, 01:33 UTCJul 7, 03:46 UTC2h 13m
2026-07-07 AAL2117 MCO → DFW Jul 7, 01:35 UTCJul 7, 03:45 UTC2h 10m
2026-07-06 AAL2117 DFW → MCO Jul 6, 21:15 UTCJul 6, 23:40 UTC2h 25m
2026-07-06 AAL2607 - Jul 6, 17:40 UTCJul 6, 19:45 UTC2h 5m
2026-07-06 AAL2607 DFW → SLC Jul 6, 14:00 UTCJul 6, 16:15 UTC2h 15m
2026-07-06 AAL2458 - Jul 6, 04:40 UTCJul 6, 07:05 UTC2h 25m
2026-07-06 AAL2458 SAN → DFW Jul 6, 04:38 UTCJul 6, 06:50 UTC2h 12m
2026-07-06 AAL2458 - Jul 6, 00:25 UTCJul 6, 03:15 UTC2h 50m
2026-07-05 AAL1215 DFW → DFW Jul 5, 16:00 UTCJul 5, 22:10 UTC6h 10m
2026-07-05 AAL2583 BNA → DFW Jul 5, 12:25 UTCJul 5, 14:00 UTC1h 35m
2026-07-05 AAL3169 DFW → BNA Jul 5, 01:11 UTCJul 5, 02:47 UTC1h 36m
2026-07-05 AAL3169 DFW → BNA Jul 5, 01:15 UTCJul 5, 02:50 UTC1h 35m
2026-07-04 AAL2613 SLC → DFW Jul 4, 20:15 UTCJul 4, 22:30 UTC2h 15m
2026-07-04 AAL2613 SLC → DFW Jul 4, 20:12 UTCJul 4, 22:26 UTC2h 14m
2026-07-04 AAL2613 DFW → SLC Jul 4, 16:40 UTCJul 4, 18:55 UTC2h 15m
2026-07-04 AAL2029 - Jul 4, 13:55 UTCJul 4, 14:35 UTC40m
2026-07-04 AAL2029 ELP → DFW Jul 4, 13:13 UTCJul 4, 14:35 UTC1h 22m
2026-07-04 AAL841 ORD → DSM Jul 4, 01:50 UTCJul 4, 02:45 UTC55m
2026-07-04 AAL841 ORD → DSM Jul 4, 01:47 UTCJul 4, 03:03 UTC1h 16m
2026-07-03 AAL1832 - Jul 3, 22:35 UTCJul 4, 00:10 UTC1h 35m
2026-07-03 AAL1832 DEN → DFW Jul 3, 22:33 UTCJul 4, 00:04 UTC1h 31m
2026-07-03 AAL1832 DFW → DEN Jul 3, 19:50 UTCJul 3, 21:25 UTC1h 35m
2026-07-03 AAL3055 DFW → MIA Jul 3, 16:00 UTCJul 3, 18:35 UTC2h 35m
2026-07-03 AAL3055 DFW → MIA Jul 3, 15:59 UTCJul 3, 18:30 UTC2h 31m
2026-07-03 AAL3055 DFW → MIA Jul 3, 11:50 UTCJul 3, 14:10 UTC2h 20m
2026-07-03 AAL2388 AUS → BOS Jul 3, 01:00 UTCJul 3, 02:40 UTC1h 40m
2026-07-02 AAL2388 AUS → BOS Jul 2, 22:30 UTCJul 3, 00:05 UTC1h 35m
2026-07-02 AAL2388 AUS → BOS Jul 2, 17:35 UTCJul 2, 20:40 UTC3h 5m
2026-07-02 AAL2811 LAX → DFW Jul 2, 13:20 UTCJul 2, 15:55 UTC2h 35m
2026-07-01 AAL2031 - Jul 1, 21:40 UTCJul 2, 02:45 UTC5h 5m
2026-07-01 AAL3219 CLT → MSN Jul 1, 15:35 UTCJul 1, 20:15 UTC4h 40m

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 N151UW page for operator, model, and routing details .

Mode-S A0CFBD frequently asked

What is Mode-S code A0CFBD?
A0CFBD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N151UW.
Where is Mode-S A0CFBD registered?
Mode-S code A0CFBD 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 A0CFBD broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0CFBD, octal 50147675, decimal 10,538,941.
What flights does A0CFBD operate?
Mode-S A0CFBD has broadcast 20 distinct callsigns, including AAL2117, AAL60G, AAL3193, AAL2615, AAL1861.