Apparatus

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sensors Mode-S transponder

A6452D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N503AZ · BOEING 767-300 · operated by AMAZON.COM SERVICES LLC

Hex
A6452D
Octal
51442455
Decimal
10,896,685
Country
US
Tail
N503AZ
Type
B763
Broadcasting now · callsign ATN3300 · 38,000 ft
Flights observed
147
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Current position

A6452D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A6452D 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
ATN3377 Air Transport International 5 2026-05-12
ATN3347 - 5 2026-06-29
ATN3390 - 4 2026-07-10
ATN3378 Air Transport International 4 2026-04-25
ATN3324 - 4 2026-06-25
ATN3319 - 4 2026-07-11
ATN3374 Air Transport International 3 2026-05-07
ATN3371 Air Transport International 3 2026-05-01
ATN3366 Air Transport International 3 2026-04-26
ATN3357 - 3 2026-06-25
ATN3346 - 3 2026-07-08
ATN3345 - 3 2026-06-21
ATN3344 - 3 2026-07-13
ATN3341 Air Transport International 3 2026-05-05
ATN3340 - 3 2026-07-01
ATN3331 Air Transport International 3 2026-04-25
ATN3318 - 3 2026-07-07
ATN3314 Air Transport International 3 2026-05-12
ATN3306 Air Transport International 3 2026-04-26
ATN3305 - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ATN3353 - Jul 14, 00:00 UTCJul 14, 02:45 UTC2h 45m
2026-07-13 ATN3304 - Jul 13, 19:00 UTCJul 13, 21:25 UTC2h 25m
2026-07-13 ATN3344 - Jul 13, 05:31 UTCJul 13, 08:10 UTC2h 40m
2026-07-13 ATN3305 - Jul 13, 00:55 UTCJul 13, 03:45 UTC2h 50m
2026-07-12 ATN3310 CVG → AFW Jul 12, 19:35 UTCJul 12, 21:30 UTC1h 55m
2026-07-12 ATN3375 - Jul 12, 08:05 UTCJul 12, 08:55 UTC50m
2026-07-12 ATN3372 - Jul 12, 05:05 UTCJul 12, 05:50 UTC45m
2026-07-11 ATN3332 - Jul 11, 22:05 UTCJul 11, 23:05 UTC1h 0m
2026-07-11 ATN3355 - Jul 11, 17:30 UTCJul 11, 19:30 UTC2h 0m
2026-07-11 ATN3381 AUS → BDL Jul 11, 07:50 UTCJul 11, 11:00 UTC3h 10m
2026-07-11 ATN3319 PHX → AUS Jul 11, 03:40 UTCJul 11, 05:35 UTC1h 55m
2026-07-10 ATN3339 AUS → PHX Jul 10, 22:50 UTCJul 11, 00:45 UTC1h 55m
2026-07-10 ATN3342 - Jul 10, 10:25 UTCJul 10, 14:00 UTC3h 35m
2026-07-10 ATN3390 - Jul 10, 04:45 UTCJul 10, 06:05 UTC1h 20m
2026-07-08 ATN3346 - Jul 8, 14:25 UTCJul 8, 18:10 UTC3h 45m
2026-07-08 ATN3300 - Jul 8, 05:35 UTCJul 8, 08:40 UTC3h 5m
2026-07-07 ATN6725 SMF → AFW Jul 7, 16:20 UTCJul 7, 19:00 UTC2h 40m
2026-07-07 ATN3318 PHX → SMF Jul 7, 07:15 UTCJul 7, 08:50 UTC1h 35m
2026-07-07 ATN6714 - Jul 7, 02:55 UTCJul 7, 04:50 UTC1h 55m
2026-07-06 ATN6744 SFO → SBD Jul 6, 03:55 UTCJul 6, 07:10 UTC3h 15m
2026-07-03 ATN9703 LIH → ONT Jul 3, 15:25 UTCJul 3, 18:15 UTC2h 50m
2026-07-03 ATN3351 SEA → ANC Jul 3, 10:05 UTCJul 3, 13:20 UTC3h 15m
2026-07-02 ATN3337 SBD → SEA Jul 2, 07:00 UTCJul 2, 09:15 UTC2h 15m
2026-07-01 ATN3363 DEN → SBD Jul 1, 19:45 UTCJul 1, 21:45 UTC2h 0m
2026-07-01 ATN3340 - Jul 1, 15:05 UTCJul 1, 16:55 UTC1h 50m
2026-07-01 ATN3302 - Jul 1, 05:00 UTCJul 1, 07:00 UTC2h 0m
2026-06-30 ATN3343 - Jun 30, 18:40 UTCJun 30, 20:40 UTC2h 0m
2026-06-30 ATN3388 - Jun 30, 11:35 UTCJun 30, 14:15 UTC2h 40m
2026-06-30 ATN3330 - Jun 30, 05:10 UTCJun 30, 09:15 UTC4h 5m
2026-06-29 ATN3347 - Jun 29, 00:54 UTCJun 29, 02:00 UTC1h 5m
2026-06-28 ATN3354 - Jun 28, 20:25 UTCJun 28, 22:34 UTC2h 10m
2026-06-28 ATN6703 - Jun 28, 16:29 UTCJun 28, 18:25 UTC1h 55m
2026-06-28 ATN3387 SBD → BWI Jun 28, 08:39 UTCJun 28, 13:10 UTC4h 30m
2026-06-28 ATN3399 SEA → SBD Jun 28, 02:05 UTCJun 28, 04:05 UTC2h 0m
2026-06-27 ATN3337 SBD → SEA Jun 27, 18:35 UTCJun 27, 21:04 UTC2h 30m
2026-06-26 ATN3364 - Jun 26, 02:05 UTCJun 26, 05:44 UTC3h 40m
2026-06-25 ATN3324 - Jun 25, 21:44 UTCJun 25, 23:44 UTC2h 0m
2026-06-25 ATN3357 - Jun 25, 18:39 UTCJun 25, 19:49 UTC1h 10m
2026-06-25 ATN3312 DEN → CVG Jun 25, 10:50 UTCJun 25, 12:35 UTC1h 45m
2026-06-25 ATN6712 ILN → SEA Jun 25, 06:50 UTCJun 25, 09:14 UTC2h 25m
2026-06-24 ATN6751 ILN → RFD Jun 24, 15:49 UTCJun 24, 18:29 UTC2h 40m
2026-06-23 ATN3390 - Jun 23, 05:00 UTCJun 23, 06:15 UTC1h 15m
2026-06-22 ATN3373 - Jun 22, 22:05 UTCJun 22, 22:59 UTC55m
2026-06-22 ATN3358 - Jun 22, 18:44 UTCJun 22, 19:44 UTC1h 0m
2026-06-22 ATN4314 CVG → BDL Jun 22, 08:44 UTCJun 22, 10:00 UTC1h 15m
2026-06-22 ATN4315 AUS → CVG Jun 22, 05:24 UTCJun 22, 06:25 UTC1h 0m
2026-06-21 ATN4315 AUS → CVG Jun 21, 22:44 UTCJun 21, 23:44 UTC1h 0m
2026-06-21 ATN4300 - Jun 21, 19:00 UTCJun 21, 19:55 UTC55m
2026-06-21 ATN3359 JFK → CVG Jun 21, 10:25 UTCJun 21, 12:04 UTC1h 40m
2026-06-21 ATN3345 - Jun 21, 04:49 UTCJun 21, 05:59 UTC1h 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 N503AZ page for operator, model, and routing details .

Mode-S A6452D frequently asked

What is Mode-S code A6452D?
A6452D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N503AZ.
Where is Mode-S A6452D registered?
Mode-S code A6452D 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 A6452D broadcasting right now?
Yes. Mode-S A6452D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6452D, octal 51442455, decimal 10,896,685.
What flights does A6452D operate?
Mode-S A6452D has broadcast 20 distinct callsigns, including ATN3377, ATN3347, ATN3390, ATN3378, ATN3324.