Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A99D89

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N719AN · BOEING 777-300ER · operated by AMERICAN AIRLINES INC

Hex
A99D89
Octal
52316611
Decimal
11,115,913
Country
US
Tail
N719AN
Type
B77W
No current signal · last broadcast Jul 26, 13:50 UTC
Flights observed
240
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 13:50 UTC

Last known position

Most recent position reported by Mode-S A99D89.

Country allocation

The ICAO 24-bit address A99D89 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
AAL930 - 17 2026-07-06
AAL929 - 16 2026-07-05
AAL73 American Airlines 13 2026-06-09
AAL72 American Airlines 12 2026-06-09
AAL38 - 12 2026-07-07
AAL39 - 11 2026-07-04
AAL81 American Airlines 10 2026-07-21
AAL79 American Airlines 10 2026-06-18
AAL731 - 10 2026-07-18
AAL20 American Airlines 10 2026-07-23
AAL953 American Airlines 9 2026-07-26
AAL78 American Airlines 9 2026-07-21
AAL735 - 9 2026-07-08
AAL137 American Airlines 9 2026-06-08
AAL730 American Airlines 8 2026-07-18
AAL175 American Airlines 8 2026-07-22
AAL141 American Airlines 8 2026-07-24
AAL734 - 7 2026-07-09
AAL176 American Airlines 7 2026-07-23
AAL51 American Airlines 6 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL953 JFK → EZE Jul 26, 03:45 UTCJul 26, 13:50 UTC10h 6m
2026-07-24 AAL141 LHR → JFK Jul 24, 17:50 UTCJul 25, 00:35 UTC6h 45m
2026-07-24 AAL141 LHR → JFK Jul 24, 17:48 UTCJul 25, 00:30 UTC6h 42m
2026-07-23 AAL20 DFW → LHR Jul 23, 23:50 UTCJul 24, 08:15 UTC8h 25m
2026-07-23 AAL176 NRT → DFW Jul 23, 08:15 UTCJul 23, 19:25 UTC11h 10m
2026-07-22 AAL175 DFW → HND Jul 22, 16:40 UTCJul 23, 04:55 UTC12h 15m
2026-07-22 AAL175 DFW → HND Jul 22, 16:38 UTCJul 23, 04:59 UTC12h 21m
2026-07-21 AAL81 LHR → DFW Jul 21, 16:05 UTCJul 22, 01:10 UTC9h 5m
2026-07-21 AAL78 DFW → LHR Jul 21, 04:30 UTCJul 21, 12:15 UTC7h 45m
2026-07-21 AAL78 DFW → LHR Jul 21, 04:29 UTCJul 21, 13:07 UTC8h 38m
2026-07-20 AAL217 CLT → AUS Jul 20, 11:15 UTCJul 20, 23:20 UTC12h 5m
2026-07-19 AAL216 SFO → DFW Jul 19, 21:25 UTCJul 20, 08:15 UTC10h 50m
2026-07-19 AAL216 SFO → DFW Jul 19, 21:22 UTCJul 20, 08:22 UTC11h 0m
2026-07-19 AAL51 LHR → DFW Jul 19, 08:30 UTCJul 19, 09:40 UTC1h 10m
2026-07-19 AAL51 LHR → DFW Jul 19, 08:26 UTCJul 19, 17:25 UTC8h 59m
2026-07-18 AAL730 CLT → LHR Jul 18, 22:15 UTCJul 19, 05:45 UTC7h 30m
2026-07-18 AAL731 - Jul 18, 08:30 UTCJul 18, 16:35 UTC8h 5m
2026-07-18 AAL731 LHR → CLT Jul 18, 08:31 UTCJul 18, 16:36 UTC8h 5m
2026-07-17 AAL730 CLT → LHR Jul 17, 22:40 UTCJul 18, 05:55 UTC7h 16m
2026-07-17 AAL731 - Jul 17, 08:45 UTCJul 17, 16:29 UTC7h 45m
2026-07-16 AAL730 CLT → LHR Jul 16, 22:10 UTCJul 17, 05:30 UTC7h 20m
2026-07-16 AAL731 - Jul 16, 08:20 UTCJul 16, 16:09 UTC7h 50m
2026-07-16 AAL731 LHR → CLT Jul 16, 08:17 UTCJul 16, 16:05 UTC7h 48m
2026-07-15 AAL142 JFK → LHR Jul 15, 13:50 UTCJul 15, 20:15 UTC6h 25m
2026-07-15 AAL954 - Jul 15, 00:15 UTCJul 15, 10:10 UTC9h 55m
2026-07-15 AAL954 EZE → JFK Jul 15, 00:10 UTCJul 15, 10:10 UTC10h 0m
2026-07-14 AAL953 - Jul 14, 03:45 UTCJul 14, 08:10 UTC4h 25m
2026-07-14 AAL953 JFK → EZE Jul 14, 03:43 UTCJul 14, 13:47 UTC10h 4m
2026-07-13 AAL141 - Jul 13, 17:45 UTCJul 14, 00:25 UTC6h 40m
2026-07-13 AAL78 - Jul 13, 04:35 UTCJul 13, 08:15 UTC3h 40m
2026-07-13 AAL78 DFW → LHR Jul 13, 04:35 UTCJul 13, 13:21 UTC8h 46m
2026-07-13 AAL217 - Jul 13, 01:20 UTCJul 13, 01:35 UTC15m
2026-07-12 AAL217 - Jul 12, 13:15 UTCJul 12, 16:35 UTC3h 20m
2026-07-12 AAL217 ATH → DFW Jul 12, 13:13 UTCJul 13, 01:02 UTC11h 49m
2026-07-11 AAL216 - Jul 11, 23:20 UTCJul 12, 03:15 UTC3h 55m
2026-07-11 AAL216 DFW → ATH Jul 11, 23:15 UTCJul 12, 10:48 UTC11h 33m
2026-07-11 AAL176 HND → DFW Jul 11, 07:52 UTCJul 11, 19:31 UTC11h 39m
2026-07-11 AAL176 HND → DFW Jul 11, 07:55 UTCJul 11, 19:40 UTC11h 45m
2026-07-10 AAL175 - Jul 10, 16:45 UTCJul 11, 04:45 UTC12h 1m
2026-07-09 AAL81 LHR → DFW Jul 9, 16:15 UTCJul 10, 01:40 UTC9h 25m
2026-07-09 AAL81 LHR → DFW Jul 9, 16:12 UTCJul 10, 01:41 UTC9h 29m
2026-07-09 AAL734 - Jul 9, 03:20 UTCJul 9, 10:55 UTC7h 35m
2026-07-08 AAL735 - Jul 8, 14:25 UTCJul 8, 22:25 UTC8h 0m
2026-07-08 AAL734 - Jul 8, 03:35 UTCJul 8, 11:00 UTC7h 25m
2026-07-07 AAL735 AUA → LGA Jul 7, 14:30 UTCJul 7, 22:25 UTC7h 55m
2026-07-07 AAL735 AUA → LGA Jul 7, 14:29 UTCJul 7, 22:24 UTC7h 55m
2026-07-07 AAL38 - Jul 7, 01:10 UTCJul 7, 09:10 UTC8h 0m
2026-07-07 AAL38 MIA → LHR Jul 7, 01:08 UTCJul 7, 09:00 UTC7h 52m
2026-07-06 AAL930 - Jul 6, 00:30 UTCJul 6, 07:55 UTC7h 25m
2026-07-05 AAL929 - Jul 5, 00:55 UTCJul 5, 09:10 UTC8h 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 N719AN page for operator, model, and routing details .

Mode-S A99D89 frequently asked

What is Mode-S code A99D89?
A99D89 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N719AN.
Where is Mode-S A99D89 registered?
Mode-S code A99D89 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 A99D89 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A99D89, octal 52316611, decimal 11,115,913.
What flights does A99D89 operate?
Mode-S A99D89 has broadcast 20 distinct callsigns, including AAL930, AAL929, AAL73, AAL72, AAL38.