Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AAD981

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N799AN · BOEING 777-200 · operated by AMERICAN AIRLINES INC

Hex
AAD981
Octal
52554601
Decimal
11,196,801
Country
US
Tail
N799AN
Type
B772
No current signal · last broadcast 14d ago
Flights observed
263
Distinct callsigns
20
Country
US
Last broadcast
14d ago

Last known position

Most recent position reported by Mode-S AAD981.

Country allocation

The ICAO 24-bit address AAD981 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
AAL199 - 13 2026-07-07
AAL785 American Airlines 12 2026-07-23
AAL94 American Airlines 11 2026-07-07
AAL784 American Airlines 11 2026-07-22
AAL704 - 10 2026-07-21
AAL43 American Airlines 9 2026-05-31
AAL705 American Airlines 8 2026-07-21
AAL42 American Airlines 8 2026-07-17
AAL198 - 8 2026-07-06
AAL95 American Airlines 7 2026-07-02
AAL721 - 6 2026-07-10
AAL69 American Airlines 6 2026-05-28
AAL37 - 6 2026-07-08
AAL325 American Airlines 6 2026-06-17
AAL123 American Airlines 6 2026-05-18
AAL786 American Airlines 5 2026-07-23
AAL49 American Airlines 5 2026-07-24
AAL36 - 5 2026-06-23
AAL239 American Airlines 5 2026-06-18
AAL733 - 4 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL113 BCN → MIA Jul 26, 10:35 UTCJul 26, 19:10 UTC8h 35m
2026-07-25 AAL192 DFW → BCN Jul 25, 21:40 UTCJul 26, 06:15 UTC8h 35m
2026-07-25 AAL192 DFW → BCN Jul 25, 21:36 UTCJul 26, 07:10 UTC9h 34m
2026-07-25 AAL201 AUS → DFW Jul 25, 08:15 UTCJul 25, 18:25 UTC10h 10m
2026-07-24 AAL200 PIT → PHL Jul 24, 20:40 UTCJul 25, 05:55 UTC9h 15m
2026-07-24 AAL49 CDG → DFW Jul 24, 08:30 UTCJul 24, 18:05 UTC9h 35m
2026-07-23 AAL786 SLC → PHL Jul 23, 22:05 UTCJul 24, 05:20 UTC7h 15m
2026-07-23 AAL785 DFW → TUS Jul 23, 08:20 UTCJul 23, 10:15 UTC1h 55m
2026-07-23 AAL785 DFW → TUS Jul 23, 08:19 UTCJul 23, 17:42 UTC9h 23m
2026-07-22 AAL784 DFW → CLT Jul 22, 20:45 UTCJul 23, 05:15 UTC8h 30m
2026-07-22 AAL784 DFW → CLT Jul 22, 20:43 UTCJul 23, 05:10 UTC8h 27m
2026-07-21 AAL704 - Jul 21, 22:20 UTCJul 22, 16:55 UTC18h 35m
2026-07-21 AAL704 - Jul 21, 21:25 UTCJul 22, 16:55 UTC19h 30m
2026-07-21 AAL705 FRA → CLT Jul 21, 07:55 UTCJul 21, 16:50 UTC8h 55m
2026-07-21 AAL705 FRA → CLT Jul 21, 07:53 UTCJul 21, 16:49 UTC8h 56m
2026-07-20 AAL704 - Jul 20, 21:15 UTCJul 21, 05:10 UTC7h 55m
2026-07-20 AAL704 CLT → FRA Jul 20, 21:12 UTCJul 21, 05:17 UTC8h 5m
2026-07-20 AAL787 CDG → CLT Jul 20, 09:40 UTCJul 20, 17:45 UTC8h 5m
2026-07-19 AAL786 SLC → PHL Jul 19, 22:10 UTCJul 20, 05:35 UTC7h 25m
2026-07-19 AAL705 FRA → CLT Jul 19, 07:35 UTCJul 19, 16:25 UTC8h 50m
2026-07-19 AAL705 FRA → CLT Jul 19, 07:32 UTCJul 19, 16:24 UTC8h 52m
2026-07-18 AAL704 - Jul 18, 21:10 UTCJul 18, 23:40 UTC2h 30m
2026-07-18 AAL704 CLT → FRA Jul 18, 21:10 UTCJul 19, 05:28 UTC8h 18m
2026-07-18 AAL787 - Jul 18, 09:20 UTCJul 18, 17:35 UTC8h 15m
2026-07-18 AAL787 CDG → CLT Jul 18, 09:18 UTCJul 18, 17:34 UTC8h 16m
2026-07-17 AAL42 ORD → LIR Jul 17, 22:10 UTCJul 18, 04:40 UTC6h 31m
2026-07-17 AAL42 ORD → LIR Jul 17, 22:08 UTCJul 18, 04:40 UTC6h 32m
2026-07-16 AAL9606 - Jul 16, 18:34 UTCJul 17, 01:35 UTC7h 0m
2026-07-16 AAL9606 LHR → JFK Jul 16, 18:30 UTCJul 17, 01:30 UTC7h 0m
2026-07-16 AAL9605 - Jul 16, 00:00 UTCJul 16, 00:10 UTC10m
2026-07-15 AAL9605 - Jul 15, 23:00 UTCJul 15, 23:55 UTC55m
2026-07-15 AAL9605 CLT → LHR Jul 15, 22:59 UTCJul 16, 06:42 UTC7h 43m
2026-07-13 AAL733 - Jul 13, 11:40 UTCJul 13, 19:35 UTC7h 55m
2026-07-13 AAL733 LHR → CLT Jul 13, 11:38 UTCJul 13, 19:35 UTC7h 57m
2026-07-12 AAL174 - Jul 12, 23:40 UTCJul 13, 06:40 UTC7h 0m
2026-07-12 AAL173 LHR → RDU Jul 12, 12:25 UTCJul 12, 19:55 UTC7h 30m
2026-07-11 AAL194 PHX → LHR Jul 11, 23:55 UTCJul 12, 09:40 UTC9h 45m
2026-07-11 AAL194 PHX → LHR Jul 11, 23:56 UTCJul 12, 09:40 UTC9h 44m
2026-07-11 AAL195 - Jul 11, 10:25 UTCJul 11, 11:45 UTC1h 20m
2026-07-11 AAL195 LHR → PHX Jul 11, 10:25 UTCJul 11, 20:38 UTC10h 13m
2026-07-11 AAL732 - Jul 11, 00:45 UTCJul 11, 08:01 UTC7h 15m
2026-07-10 AAL721 FCO → CLT Jul 10, 12:24 UTCJul 10, 22:02 UTC9h 38m
2026-07-10 AAL721 - Jul 10, 12:25 UTCJul 10, 22:20 UTC9h 55m
2026-07-09 AAL52 - Jul 9, 23:40 UTCJul 10, 00:05 UTC25m
2026-07-09 AAL52 MIA → FCO Jul 9, 23:37 UTCJul 10, 09:21 UTC9h 44m
2026-07-08 AAL2206 - Jul 8, 23:30 UTCJul 9, 01:45 UTC2h 15m
2026-07-08 AAL37 MAD → DFW Jul 8, 10:40 UTCJul 8, 20:20 UTC9h 40m
2026-07-08 AAL37 MAD → DFW Jul 8, 10:37 UTCJul 8, 20:15 UTC9h 38m
2026-07-07 AAL94 JFK → MAD Jul 7, 20:40 UTCJul 8, 03:00 UTC6h 20m
2026-07-07 AAL199 - Jul 7, 09:30 UTCJul 7, 10:15 UTC45m

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 N799AN page for operator, model, and routing details .

Mode-S AAD981 frequently asked

What is Mode-S code AAD981?
AAD981 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N799AN.
Where is Mode-S AAD981 registered?
Mode-S code AAD981 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 AAD981 broadcasting right now?
No active broadcast right now. Last signal was 14d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AAD981, octal 52554601, decimal 11,196,801.
What flights does AAD981 operate?
Mode-S AAD981 has broadcast 20 distinct callsigns, including AAL199, AAL785, AAL94, AAL784, AAL704.