Apparatus

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sensors Mode-S transponder

AD9645

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N975AN · BOEING 737-800 · operated by AMERICAN AIRLINES INC

Hex
AD9645
Octal
53313105
Decimal
11,376,197
Country
US
Tail
N975AN
Type
B738
Transponder active on ground
Flights observed
462
Distinct callsigns
20
Country
US
Last broadcast
42m ago

Last known position

Most recent position reported by Mode-S AD9645.

Country allocation

The ICAO 24-bit address AD9645 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
AAL3016 American Airlines 8 2026-05-01
AAL1465 - 6 2026-07-04
AAL3300 - 5 2026-06-22
AAL2814 - 5 2026-06-26
AAL2412 - 5 2026-06-30
AAL2346 American Airlines 5 2026-06-12
AAL2104 American Airlines 5 2026-05-15
AAL1376 American Airlines 5 2026-06-12
AAL961 - 4 2026-06-30
AAL712 - 4 2026-07-05
AAL2862 American Airlines 4 2026-04-14
AAL2102 - 4 2026-07-13
AAL1164 American Airlines 4 2026-05-25
AAL935 American Airlines 3 2026-05-22
AAL763 American Airlines 3 2026-06-10
AAL386 American Airlines 3 2026-06-19
AAL3269 American Airlines 3 2026-04-21
AAL3209 American Airlines 3 2026-04-21
AAL3106 American Airlines 3 2026-06-27
AAL3068 American Airlines 3 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AAL3078 - Jul 13, 23:40 UTCJul 14, 03:15 UTC3h 35m
2026-07-13 AAL1938 - Jul 13, 19:55 UTCJul 13, 22:30 UTC2h 35m
2026-07-13 AAL1474 ORD → MIA Jul 13, 15:15 UTCJul 13, 17:50 UTC2h 35m
2026-07-13 AAL1474 ORD → MIA Jul 13, 15:15 UTCJul 13, 17:53 UTC2h 38m
2026-07-13 AAL2102 - Jul 13, 11:15 UTCJul 13, 13:10 UTC1h 55m
2026-07-13 AAL2102 JAX → ORD Jul 13, 11:11 UTCJul 13, 13:16 UTC2h 5m
2026-07-13 AAL2096 - Jul 13, 00:35 UTCJul 13, 02:35 UTC2h 0m
2026-07-12 AAL1760 DEN → ORD Jul 12, 20:50 UTCJul 12, 22:45 UTC1h 55m
2026-07-12 AAL1760 - Jul 12, 17:20 UTCJul 12, 19:10 UTC1h 50m
2026-07-12 AAL2771 DEN → ORD Jul 12, 13:25 UTCJul 12, 15:20 UTC1h 55m
2026-07-12 AAL1387 ORD → DEN Jul 12, 04:05 UTCJul 12, 06:01 UTC1h 55m
2026-07-12 AAL1734 DEN → ORD Jul 12, 00:42 UTCJul 12, 02:37 UTC1h 55m
2026-07-12 AAL1734 DEN → ORD Jul 12, 00:45 UTCJul 12, 02:40 UTC1h 55m
2026-07-11 AAL1734 - Jul 11, 21:00 UTCJul 11, 23:00 UTC2h 0m
2026-07-11 AAL1598 - Jul 11, 15:15 UTCJul 11, 18:50 UTC3h 35m
2026-07-11 AAL2567 - Jul 11, 03:35 UTCJul 11, 04:40 UTC1h 5m
2026-07-11 AAL2567 - Jul 11, 01:15 UTCJul 11, 02:10 UTC55m
2026-07-10 AAL764 - Jul 10, 17:00 UTCJul 10, 23:15 UTC6h 15m
2026-07-09 AAL3237 PHL → BOS Jul 9, 12:40 UTCJul 9, 16:20 UTC3h 40m
2026-07-09 AAL2149 - Jul 9, 07:15 UTCJul 9, 11:10 UTC3h 55m
2026-07-09 AAL2149 LAX → BNA Jul 9, 07:11 UTCJul 9, 11:05 UTC3h 54m
2026-07-09 AAL1291 AUS → LAX Jul 9, 01:45 UTCJul 9, 04:25 UTC2h 40m
2026-07-08 AAL2892 PHX → AUS Jul 8, 22:35 UTCJul 9, 00:30 UTC1h 55m
2026-07-08 AAL1466 LAS → PHX Jul 8, 20:15 UTCJul 8, 21:05 UTC50m
2026-07-08 AAL16R ORD → LAS Jul 8, 15:40 UTCJul 8, 18:55 UTC3h 15m
2026-07-08 AAL16R ORD → LAS Jul 8, 15:37 UTCJul 8, 18:50 UTC3h 13m
2026-07-08 AAL2163 - Jul 8, 11:45 UTCJul 8, 14:05 UTC2h 20m
2026-07-08 AAL2163 BDL → ORD Jul 8, 11:41 UTCJul 8, 13:36 UTC1h 55m
2026-07-08 AAL1453 - Jul 8, 00:35 UTCJul 8, 02:20 UTC1h 45m
2026-07-07 AAL2247 - Jul 7, 19:35 UTCJul 7, 22:20 UTC2h 45m
2026-07-07 AAL3302 PHL → MIA Jul 7, 15:50 UTCJul 7, 18:15 UTC2h 25m
2026-07-07 AAL3247 - Jul 7, 03:25 UTCJul 7, 05:40 UTC2h 15m
2026-07-06 AAL3196 LGA → FLL Jul 6, 22:53 UTCJul 7, 01:59 UTC3h 6m
2026-07-06 AAL3196 LGA → FLL Jul 6, 22:55 UTCJul 7, 02:00 UTC3h 5m
2026-07-06 AAL2805 TPA → LGA Jul 6, 16:40 UTCJul 6, 19:50 UTC3h 10m
2026-07-06 AAL2805 TPA → LGA Jul 6, 16:36 UTCJul 6, 19:45 UTC3h 9m
2026-07-06 AAL2805 LGA → TPA Jul 6, 12:50 UTCJul 6, 15:10 UTC2h 20m
2026-07-05 AAL1722 - Jul 5, 22:00 UTCJul 5, 23:20 UTC1h 20m
2026-07-05 AAL1701 - Jul 5, 18:25 UTCJul 5, 19:20 UTC55m
2026-07-05 AAL1701 CVG → CLT Jul 5, 18:23 UTCJul 5, 19:19 UTC56m
2026-07-05 AAL3278 - Jul 5, 15:55 UTCJul 5, 16:50 UTC55m
2026-07-05 AAL712 STL → CLT Jul 5, 12:30 UTCJul 5, 13:50 UTC1h 20m
2026-07-05 AAL712 - Jul 5, 12:35 UTCJul 5, 13:15 UTC40m
2026-07-05 AAL1594 - Jul 5, 01:05 UTCJul 5, 03:20 UTC2h 15m
2026-07-04 AAL1182 - Jul 4, 20:20 UTCJul 4, 22:30 UTC2h 10m
2026-07-04 AAL1013 - Jul 4, 16:25 UTCJul 4, 17:10 UTC45m
2026-07-04 AAL1013 DFW → GUA Jul 4, 16:22 UTCJul 4, 19:08 UTC2h 46m
2026-07-04 AAL1780 LAS → DFW Jul 4, 12:10 UTCJul 4, 14:15 UTC2h 5m
2026-07-04 AAL1465 ORD → LAS Jul 4, 06:40 UTCJul 4, 10:15 UTC3h 35m
2026-07-03 AAL2616 SLC → ORD Jul 3, 20:50 UTCJul 4, 00:00 UTC3h 10m

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 N975AN page for operator, model, and routing details .

Mode-S AD9645 frequently asked

What is Mode-S code AD9645?
AD9645 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N975AN.
Where is Mode-S AD9645 registered?
Mode-S code AD9645 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 AD9645 broadcasting right now?
Mode-S AD9645 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 AD9645, octal 53313105, decimal 11,376,197.
What flights does AD9645 operate?
Mode-S AD9645 has broadcast 20 distinct callsigns, including AAL3016, AAL1465, AAL3300, AAL2814, AAL2412.