sensors Mode-S transponder

A793FD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N588DT · AIRBUS A-321neo · operated by DELTA AIR LINES INC

Hex
A793FD
Octal
51711775
Decimal
10,982,397
Country
US
Tail
N588DT
Type
A21N
Transponder active on ground
Flights observed
11
Distinct callsigns
6
Country
US
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S A793FD.

Country allocation

The ICAO 24-bit address A793FD 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 6 distinct

Callsign Airline Flights Last seen
DAL494 - 3 2026-04-13
DAL2075 - 3 2026-04-14
DAL2197 - 2 2026-04-13
DAL908 Delta Air Lines 1 2026-04-13
DAL1587 - 1 2026-04-12
DAL1219 - 1 2026-04-12

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 DAL2075 - Apr 14, 09:10 UTCApr 14, 09:30 UTC20m
2026-04-14 DAL2075 - Apr 14, 07:10 UTCApr 14, 09:05 UTC1h 55m
2026-04-14 DAL2075 - Apr 14, 06:00 UTCApr 14, 07:10 UTC1h 10m
2026-04-13 DAL908 DTW → LAX Apr 13, 20:30 UTCApr 13, 23:40 UTC3h 10m
2026-04-13 DAL494 - Apr 13, 16:25 UTCApr 13, 18:40 UTC2h 15m
2026-04-13 DAL494 - Apr 13, 15:50 UTCApr 13, 18:40 UTC2h 50m
2026-04-13 DAL494 - Apr 13, 15:00 UTCApr 13, 16:10 UTC1h 10m
2026-04-13 DAL2197 SFO → LAX Apr 13, 05:05 UTCApr 13, 06:00 UTC55m
2026-04-13 DAL2197 LAX → SFO Apr 13, 01:55 UTCApr 13, 02:55 UTC1h 0m
2026-04-12 DAL1219 - Apr 12, 19:35 UTCApr 12, 20:15 UTC40m
2026-04-12 DAL1587 - Apr 12, 16:38 UTCApr 12, 17:41 UTC1h 3m

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 N588DT page for operator, model, and routing details .

Mode-S A793FD frequently asked

What is Mode-S code A793FD?
A793FD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N588DT.
Where is Mode-S A793FD registered?
Mode-S code A793FD 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 A793FD broadcasting right now?
Mode-S A793FD 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 A793FD, octal 51711775, decimal 10,982,397.
What flights does A793FD operate?
Mode-S A793FD has broadcast 6 distinct callsigns, including DAL494, DAL2075, DAL2197, DAL908, DAL1587.