Apparatus

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sensors Mode-S transponder

AA9BB8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N783AN · BOEING 777-200 · operated by AMERICAN AIRLINES INC

Hex
AA9BB8
Octal
52515670
Decimal
11,180,984
Country
US
Tail
N783AN
Type
B772
Broadcasting now · callsign AAL905 · 37,000 ft
Flights observed
281
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:10 UTC

Current position

AA9BB8 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AA9BB8 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
AAL173 American Airlines 10 2026-07-26
AAL900 - 9 2026-07-02
AAL733 American Airlines 9 2026-06-12
AAL195 American Airlines 9 2026-07-25
AAL786 - 8 2026-07-14
AAL69 - 7 2026-07-04
AAL52 American Airlines 7 2026-07-23
AAL48 American Airlines 7 2026-06-20
AAL43 - 7 2026-06-20
AAL194 American Airlines 7 2026-07-26
AAL748 American Airlines 6 2026-07-03
AAL732 American Airlines 6 2026-07-25
AAL725 - 6 2026-07-14
AAL705 American Airlines 6 2026-05-19
AAL325 - 6 2026-07-11
AAL200 - 6 2026-07-18
AAL199 - 6 2026-07-10
AAL931 - 5 2026-07-02
AAL787 American Airlines 5 2026-05-18
AAL53 - 5 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL173 LHR → RDU Jul 26, 12:15 UTCJul 26, 13:45 UTC1h 30m
2026-07-26 AAL173 LHR → RDU Jul 26, 12:15 UTCJul 26, 20:17 UTC8h 2m
2026-07-26 AAL173 LHR → RDU Jul 26, 12:15 UTCJul 26, 20:07 UTC7h 52m
2026-07-26 AAL194 PHX → LHR Jul 26, 05:15 UTCJul 26, 10:00 UTC4h 46m
2026-07-26 AAL194 PHX → LHR Jul 26, 00:23 UTCJul 26, 10:02 UTC9h 39m
2026-07-26 AAL194 PHX → LHR Jul 26, 00:25 UTCJul 26, 05:10 UTC4h 45m
2026-07-25 AAL195 LHR → PHX Jul 25, 21:20 UTCJul 25, 21:30 UTC10m
2026-07-25 AAL195 LHR → PHX Jul 25, 10:37 UTCJul 25, 21:01 UTC10h 24m
2026-07-25 AAL195 LHR → PHX Jul 25, 10:40 UTCJul 25, 21:30 UTC10h 50m
2026-07-25 AAL732 CLT → LHR Jul 25, 00:40 UTCJul 25, 07:50 UTC7h 10m
2026-07-24 AAL721 FCO → CLT Jul 24, 12:35 UTCJul 24, 21:50 UTC9h 15m
2026-07-23 AAL52 MIA → FCO Jul 23, 23:35 UTCJul 24, 09:15 UTC9h 40m
2026-07-23 AAL908 EZE → MIA Jul 23, 01:45 UTCJul 23, 10:30 UTC8h 45m
2026-07-22 AAL907 MIA → EZE Jul 22, 03:35 UTCJul 22, 11:40 UTC8h 5m
2026-07-21 AAL53 - Jul 21, 13:40 UTCJul 21, 23:20 UTC9h 40m
2026-07-21 AAL53 FCO → MIA Jul 21, 13:38 UTCJul 21, 23:18 UTC9h 40m
2026-07-21 AAL240 DFW → FCO Jul 21, 00:55 UTCJul 21, 11:00 UTC10h 5m
2026-07-19 AAL201 ZRH → DFW Jul 19, 08:40 UTCJul 19, 18:40 UTC10h 0m
2026-07-18 AAL200 DFW → ZRH Jul 18, 20:20 UTCJul 19, 06:15 UTC9h 55m
2026-07-17 AAL221 AMS → DFW Jul 17, 11:00 UTCJul 17, 20:35 UTC9h 35m
2026-07-17 AAL221 - Jul 17, 11:04 UTCJul 17, 20:35 UTC9h 30m
2026-07-16 AAL220 DFW → AMS Jul 16, 23:25 UTCJul 17, 08:25 UTC9h 0m
2026-07-16 AAL201 ZRH → DFW Jul 16, 08:41 UTCJul 16, 18:40 UTC9h 59m
2026-07-16 AAL201 - Jul 16, 08:45 UTCJul 16, 10:59 UTC2h 15m
2026-07-15 AAL200 DFW → ZRH Jul 15, 20:47 UTCJul 16, 06:29 UTC9h 42m
2026-07-15 AAL200 DFW → ZRH Jul 15, 20:50 UTCJul 16, 06:30 UTC9h 40m
2026-07-15 AAL49 - Jul 15, 08:25 UTCJul 15, 17:50 UTC9h 25m
2026-07-14 AAL786 - Jul 14, 21:45 UTCJul 15, 05:40 UTC7h 54m
2026-07-14 AAL786 CLT → CDG Jul 14, 21:44 UTCJul 15, 05:38 UTC7h 54m
2026-07-14 AAL725 - Jul 14, 11:20 UTCJul 14, 18:30 UTC7h 10m
2026-07-14 AAL725 DUB → CLT Jul 14, 11:18 UTCJul 14, 18:33 UTC7h 15m
2026-07-14 AAL724 - Jul 14, 01:30 UTCJul 14, 08:15 UTC6h 45m
2026-07-13 AAL9622 - Jul 13, 08:20 UTCJul 13, 09:05 UTC45m
2026-07-13 AAL9622 DUB → CLT Jul 13, 08:17 UTCJul 13, 15:52 UTC7h 35m
2026-07-11 AAL724P - Jul 11, 23:55 UTCJul 12, 06:30 UTC6h 35m
2026-07-11 AAL724P CLT → DUB Jul 11, 23:52 UTCJul 12, 06:27 UTC6h 35m
2026-07-11 AAL325 - Jul 11, 13:30 UTCJul 11, 20:00 UTC6h 30m
2026-07-11 AAL325 - Jul 11, 10:00 UTCJul 11, 13:25 UTC3h 25m
2026-07-11 AAL325 ATH → CLT Jul 11, 09:59 UTCJul 11, 21:07 UTC11h 8m
2026-07-10 AAL334 JFK → ATH Jul 10, 22:05 UTCJul 11, 06:55 UTC8h 50m
2026-07-10 AAL199 MXP → JFK Jul 10, 09:18 UTCJul 10, 17:40 UTC8h 22m
2026-07-10 AAL199 MXP → JFK Jul 10, 09:20 UTCJul 10, 17:40 UTC8h 20m
2026-07-09 AAL198 JFK → MXP Jul 9, 23:25 UTCJul 10, 06:45 UTC7h 20m
2026-07-09 AAL9600 - Jul 9, 07:30 UTCJul 9, 14:50 UTC7h 20m
2026-07-07 AAL786 CLT → CDG Jul 7, 22:59 UTCJul 8, 06:31 UTC7h 32m
2026-07-07 AAL786 - Jul 7, 23:00 UTCJul 8, 06:40 UTC7h 40m
2026-07-07 AAL725 - Jul 7, 11:30 UTCJul 7, 19:10 UTC7h 40m
2026-07-07 AAL132P - Jul 7, 03:25 UTCJul 7, 08:00 UTC4h 35m
2026-07-06 AAL132P DFW → DUB Jul 6, 23:41 UTCJul 7, 07:55 UTC8h 14m
2026-07-06 AAL132P - Jul 6, 23:45 UTCJul 7, 03:20 UTC3h 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 N783AN page for operator, model, and routing details .

Mode-S AA9BB8 frequently asked

What is Mode-S code AA9BB8?
AA9BB8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N783AN.
Where is Mode-S AA9BB8 registered?
Mode-S code AA9BB8 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 AA9BB8 broadcasting right now?
Yes. Mode-S AA9BB8 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA9BB8, octal 52515670, decimal 11,180,984.
What flights does AA9BB8 operate?
Mode-S AA9BB8 has broadcast 20 distinct callsigns, including AAL173, AAL900, AAL733, AAL195, AAL786.