Apparatus

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sensors Mode-S transponder

A75283

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N571DZ · AIRBUS A-350-900 · operated by BANK OF UTAH TRUSTEE

Hex
A75283
Octal
51651203
Decimal
10,965,635
Country
US
Tail
N571DZ
Type
A359
No current signal · last broadcast 2d ago
Flights observed
194
Distinct callsigns
20
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A75283.

Country allocation

The ICAO 24-bit address A75283 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
DAL147 - 17 2026-07-05
DAL295 Delta Air Lines 13 2026-07-06
DAL8 - 12 2026-07-08
DAL167 - 11 2026-07-07
DAL146 - 11 2026-07-06
DAL171 - 9 2026-07-01
DAL121 - 9 2026-07-03
DAL120 - 9 2026-06-30
DAL291 - 8 2026-07-11
DAL290 - 8 2026-07-11
DAL160 - 8 2026-06-30
N571DZ - 7 2026-05-09
DAL294 - 7 2026-07-04
DAL161 - 7 2026-07-01
DAL166 - 6 2026-07-07
DAL7 Delta Air Lines 5 2026-06-29
DAL170 - 5 2026-07-02
DAL69 - 4 2026-06-13
DAL39 Delta Air Lines 4 2026-06-03
DAL71 - 3 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 DAL291 - Jul 11, 14:30 UTCJul 12, 01:30 UTC11h 0m
2026-07-11 DAL291 CDG → LAX Jul 11, 14:29 UTCJul 12, 01:27 UTC10h 58m
2026-07-11 DAL290 - Jul 11, 01:55 UTCJul 11, 12:05 UTC10h 10m
2026-07-10 DAL9891 - Jul 10, 11:40 UTCJul 10, 22:45 UTC11h 5m
2026-07-09 DAL290 LAX → CDG Jul 9, 01:15 UTCJul 9, 11:10 UTC9h 55m
2026-07-08 DAL8 HND → LAX Jul 8, 08:25 UTCJul 8, 17:55 UTC9h 30m
2026-07-07 DAL167 SEA → HND Jul 7, 19:16 UTCJul 8, 04:27 UTC9h 11m
2026-07-07 DAL167 - Jul 7, 19:20 UTCJul 7, 23:30 UTC4h 10m
2026-07-07 DAL166 HND → SEA Jul 7, 07:50 UTCJul 7, 16:05 UTC8h 15m
2026-07-06 DAL295 ATL → HND Jul 6, 15:35 UTCJul 7, 04:40 UTC13h 5m
2026-07-06 DAL146 - Jul 6, 04:30 UTCJul 6, 10:35 UTC6h 5m
2026-07-05 DAL147 ATL → SCL Jul 5, 03:42 UTCJul 5, 11:55 UTC8h 13m
2026-07-05 DAL147 - Jul 5, 03:45 UTCJul 5, 08:45 UTC5h 0m
2026-07-04 DAL294 HND → ATL Jul 4, 06:45 UTCJul 4, 18:40 UTC11h 55m
2026-07-03 DAL121 MSP → HND Jul 3, 15:42 UTCJul 4, 04:33 UTC12h 51m
2026-07-03 DAL121 - Jul 3, 15:45 UTCJul 3, 20:40 UTC4h 55m
2026-07-02 DAL170 ICN → MSP Jul 2, 10:50 UTCJul 2, 22:15 UTC11h 25m
2026-07-01 DAL171 MSP → ICN Jul 1, 19:26 UTCJul 2, 08:33 UTC13h 7m
2026-07-01 DAL171 - Jul 1, 19:30 UTCJul 2, 06:45 UTC11h 15m
2026-07-01 DAL161 AMS → MSP Jul 1, 07:55 UTCJul 1, 16:50 UTC8h 55m
2026-07-01 DAL161 AMS → MSP Jul 1, 07:53 UTCJul 1, 16:50 UTC8h 57m
2026-06-30 DAL160 - Jun 30, 21:00 UTCJul 1, 04:10 UTC7h 10m
2026-06-30 DAL120 - Jun 30, 07:45 UTCJun 30, 08:25 UTC40m
2026-06-30 DAL120 HND → MSP Jun 30, 07:41 UTCJun 30, 17:56 UTC10h 15m
2026-06-29 DAL7 LAX → HND Jun 29, 17:30 UTCJun 30, 04:40 UTC11h 11m
2026-06-28 DAL291 - Jun 28, 14:39 UTCJun 29, 01:05 UTC10h 25m
2026-06-28 DAL290 - Jun 28, 01:25 UTCJun 28, 06:30 UTC5h 5m
2026-06-28 DAL290 LAX → CDG Jun 28, 01:24 UTCJun 28, 11:34 UTC10h 10m
2026-06-27 DAL8 HND → LAX Jun 27, 07:57 UTCJun 27, 16:58 UTC9h 1m
2026-06-27 DAL8 - Jun 27, 07:59 UTCJun 27, 16:59 UTC9h 0m
2026-06-26 DAL167 - Jun 26, 19:24 UTCJun 26, 23:25 UTC4h 0m
2026-06-26 DAL167 SEA → HND Jun 26, 19:20 UTCJun 27, 04:55 UTC9h 35m
2026-06-26 DAL166 - Jun 26, 08:05 UTCJun 26, 16:14 UTC8h 10m
2026-06-25 DAL295 ATL → HND Jun 25, 15:29 UTCJun 25, 23:14 UTC7h 45m
2026-06-25 DAL295 ATL → HND Jun 25, 15:25 UTCJun 26, 05:08 UTC13h 43m
2026-06-25 DAL146 - Jun 25, 06:40 UTCJun 25, 09:40 UTC3h 0m
2026-06-24 DAL147 - Jun 24, 02:20 UTCJun 24, 04:44 UTC2h 25m
2026-06-24 DAL147 ATL → SCL Jun 24, 02:20 UTCJun 24, 11:06 UTC8h 46m
2026-06-23 DAL146 - Jun 23, 06:49 UTCJun 23, 09:49 UTC3h 0m
2026-06-22 DAL147 ATL → SCL Jun 22, 02:16 UTCJun 22, 11:06 UTC8h 50m
2026-06-22 DAL147 - Jun 22, 02:19 UTCJun 22, 05:10 UTC2h 50m
2026-06-21 DAL294 HND → ATL Jun 21, 07:34 UTCJun 21, 19:50 UTC12h 15m
2026-06-20 DAL167 SEA → HND Jun 20, 19:15 UTCJun 21, 04:24 UTC9h 10m
2026-06-20 DAL166 - Jun 20, 07:49 UTCJun 20, 16:29 UTC8h 40m
2026-06-19 DAL295 ATL → HND Jun 19, 15:49 UTCJun 19, 18:44 UTC2h 55m
2026-06-19 DAL295 ATL → HND Jun 19, 15:50 UTCJun 20, 04:50 UTC13h 0m
2026-06-18 DAL71 AMS → ATL Jun 18, 07:50 UTCJun 18, 16:35 UTC8h 45m
2026-06-17 DAL70 - Jun 17, 19:55 UTCJun 18, 03:30 UTC7h 35m
2026-06-17 DAL71 - Jun 17, 07:55 UTCJun 17, 08:45 UTC50m
2026-06-17 DAL71 AMS → ATL Jun 17, 07:53 UTCJun 17, 16:28 UTC8h 35m

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 N571DZ page for operator, model, and routing details .

Mode-S A75283 frequently asked

What is Mode-S code A75283?
A75283 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N571DZ.
Where is Mode-S A75283 registered?
Mode-S code A75283 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 A75283 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A75283, octal 51651203, decimal 10,965,635.
What flights does A75283 operate?
Mode-S A75283 has broadcast 20 distinct callsigns, including DAL147, DAL295, DAL8, DAL167, DAL146.