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
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
530
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

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 - 8 2026-07-17
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
AAL752 - 4 2026-07-15
AAL712 - 4 2026-07-05
AAL602 - 4 2026-07-20
AAL2862 American Airlines 4 2026-04-14
AAL2754 - 4 2026-07-17
AAL2572 - 4 2026-07-18
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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2818 DFW → LGA Jul 26, 19:10 UTCJul 26, 21:15 UTC2h 5m
2026-07-26 AAL2818 DFW → LGA Jul 26, 15:45 UTCJul 26, 18:00 UTC2h 15m
2026-07-26 AAL1553 CUN → CVG Jul 26, 11:05 UTCJul 26, 13:25 UTC2h 20m
2026-07-26 AAL2559 DFW → PHL Jul 26, 00:15 UTCJul 26, 02:15 UTC2h 0m
2026-07-25 AAL2311 IAH → PHL Jul 25, 20:25 UTCJul 25, 22:40 UTC2h 15m
2026-07-25 AAL2311 IAH → PHL Jul 25, 16:40 UTCJul 25, 18:55 UTC2h 15m
2026-07-25 AAL1361 RNO → DFW Jul 25, 12:35 UTCJul 25, 15:20 UTC2h 45m
2026-07-24 AAL3251 CHS → PHL Jul 24, 23:30 UTCJul 25, 02:10 UTC2h 40m
2026-07-24 AAL1845 ORD → LAS Jul 24, 19:50 UTCJul 24, 21:50 UTC2h 0m
2026-07-24 AAL1845 ORD → LAS Jul 24, 14:25 UTCJul 24, 17:25 UTC3h 0m
2026-07-24 AAL3329 JAX → PHL Jul 24, 10:05 UTCJul 24, 12:30 UTC2h 25m
2026-07-24 AAL3329 JAX → PHL Jul 24, 10:04 UTCJul 24, 12:29 UTC2h 25m
2026-07-24 AAL1761 DFW → PIT Jul 24, 01:15 UTCJul 24, 03:40 UTC2h 25m
2026-07-24 AAL1761 DFW → PIT Jul 24, 01:12 UTCJul 24, 03:25 UTC2h 13m
2026-07-23 AAL310 BDL → CLT Jul 23, 21:40 UTCJul 23, 23:45 UTC2h 5m
2026-07-23 AAL310 BDL → CLT Jul 23, 18:20 UTCJul 23, 20:25 UTC2h 5m
2026-07-23 AAL1618 DFW → DCA Jul 23, 14:15 UTCJul 23, 16:50 UTC2h 35m
2026-07-23 AAL1618 DFW → DCA Jul 23, 10:05 UTCJul 23, 12:40 UTC2h 35m
2026-07-23 AAL2600 BOS → DFW Jul 23, 03:36 UTCJul 23, 05:28 UTC1h 52m
2026-07-23 AAL2600 BOS → DFW Jul 23, 03:40 UTCJul 23, 05:30 UTC1h 50m
2026-07-22 AAL1592 LAS → AUS Jul 22, 22:45 UTCJul 23, 01:00 UTC2h 15m
2026-07-22 AAL1554 DCA → MIA Jul 22, 19:10 UTCJul 22, 21:15 UTC2h 5m
2026-07-22 AAL383 ORD → BNA Jul 22, 13:20 UTCJul 22, 16:45 UTC3h 25m
2026-07-22 AAL1291 DFW → IAD Jul 22, 02:20 UTCJul 22, 05:00 UTC2h 40m
2026-07-21 AAL2892 ORD → PBI Jul 21, 23:15 UTCJul 22, 01:10 UTC1h 55m
2026-07-21 AAL1218 - Jul 21, 20:45 UTCJul 21, 21:40 UTC55m
2026-07-21 AAL1218 ABQ → PHX Jul 21, 20:19 UTCJul 21, 21:43 UTC1h 24m
2026-07-21 AAL1218 - Jul 21, 15:35 UTCJul 21, 19:15 UTC3h 40m
2026-07-21 AAL1618 DFW → DCA Jul 21, 10:55 UTCJul 21, 13:20 UTC2h 25m
2026-07-20 AAL2282 SAT → ORD Jul 20, 23:25 UTCJul 21, 01:50 UTC2h 24m
2026-07-20 AAL2282 SAT → ORD Jul 20, 23:21 UTCJul 21, 01:49 UTC2h 28m
2026-07-20 AAL2282 SAT → ORD Jul 20, 19:40 UTCJul 20, 22:10 UTC2h 30m
2026-07-20 AAL602 - Jul 20, 16:55 UTCJul 20, 18:05 UTC1h 10m
2026-07-20 AAL602 - Jul 20, 14:40 UTCJul 20, 15:45 UTC1h 5m
2026-07-20 AAL955 LGA → DFW Jul 20, 11:50 UTCJul 20, 13:00 UTC1h 10m
2026-07-20 AAL1036 AUA → MIA Jul 20, 05:15 UTCJul 20, 06:20 UTC1h 5m
2026-07-20 AAL2673 - Jul 20, 00:50 UTCJul 20, 02:30 UTC1h 40m
2026-07-20 AAL2673 VPS → DFW Jul 20, 00:49 UTCJul 20, 02:28 UTC1h 39m
2026-07-19 AAL2673 - Jul 19, 21:55 UTCJul 19, 23:20 UTC1h 25m
2026-07-19 AAL1177 ORD → PHL Jul 19, 17:55 UTCJul 19, 20:30 UTC2h 35m
2026-07-19 AAL1177 ORD → PHL Jul 19, 13:55 UTCJul 19, 16:30 UTC2h 35m
2026-07-19 AAL1177 ORD → PHL Jul 19, 13:35 UTCJul 19, 13:40 UTC5m
2026-07-19 AAL1098 MCI → DFW Jul 19, 10:40 UTCJul 19, 11:45 UTC1h 5m
2026-07-19 AAL2047 - Jul 19, 01:30 UTCJul 19, 02:35 UTC1h 5m
2026-07-18 AAL2572 SJC → DFW Jul 18, 19:05 UTCJul 18, 22:20 UTC3h 15m
2026-07-18 AAL2572 - Jul 18, 14:35 UTCJul 18, 17:25 UTC2h 50m
2026-07-18 AAL1281 - Jul 18, 10:15 UTCJul 18, 12:35 UTC2h 20m
2026-07-18 AAL1281 RSW → DFW Jul 18, 10:11 UTCJul 18, 12:30 UTC2h 19m
2026-07-18 AAL1267 DFW → RSW Jul 18, 01:34 UTCJul 18, 03:45 UTC2h 11m
2026-07-17 AAL2754 - Jul 17, 21:55 UTCJul 17, 23:45 UTC1h 50m

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?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
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.