Apparatus

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sensors Mode-S transponder

AD43E6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N954DZ · operated by DELTA AIR LINES INC

Hex
AD43E6
Octal
53241746
Decimal
11,355,110
Country
US
Tail
N954DZ
Type
B739
No current signal · last broadcast 50m ago
Flights observed
618
Distinct callsigns
20
Country
US
Last broadcast
50m ago

Last known position

Most recent position reported by Mode-S AD43E6.

Country allocation

The ICAO 24-bit address AD43E6 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
DAL2542 Delta Air Lines 23 2026-06-10
DAL2952 - 22 2026-07-12
DAL2052 Delta Air Lines 18 2026-07-08
DAL1353 - 14 2026-07-04
DAL3195 - 12 2026-07-13
DAL3157 - 12 2026-07-12
DAL3067 Delta Air Lines 12 2026-07-01
DAL1568 - 12 2026-07-09
DAL3196 - 11 2026-07-04
DAL2867 - 11 2026-07-01
DAL3198 - 10 2026-07-14
DAL3122 Delta Air Lines 10 2026-05-05
DAL3069 - 10 2026-07-05
DAL3059 - 10 2026-06-30
DAL2026 - 10 2026-07-06
DAL1148 - 10 2026-06-28
DAL2071 - 9 2026-07-11
DAL3159 - 8 2026-07-05
DAL3054 Delta Air Lines 8 2026-05-26
DAL3021 - 8 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL3126 ATL → IND Jul 14, 20:15 UTCJul 14, 21:15 UTC1h 0m
2026-07-14 DAL3198 - Jul 14, 17:10 UTCJul 14, 17:55 UTC45m
2026-07-14 DAL3198 - Jul 14, 15:00 UTCJul 14, 15:50 UTC50m
2026-07-14 DAL2522 MSY → ATL Jul 14, 12:50 UTCJul 14, 13:50 UTC1h 0m
2026-07-14 DAL1450 ATL → MSY Jul 14, 01:50 UTCJul 14, 02:55 UTC1h 5m
2026-07-13 DAL3195 - Jul 13, 21:50 UTCJul 13, 23:00 UTC1h 10m
2026-07-13 DAL3195 ATL → SDF Jul 13, 19:45 UTCJul 13, 20:35 UTC50m
2026-07-13 DAL3198 - Jul 13, 17:05 UTCJul 13, 18:00 UTC55m
2026-07-13 DAL3198 ATL → PNS Jul 13, 14:50 UTCJul 13, 15:40 UTC50m
2026-07-13 DAL789 - Jul 13, 12:30 UTCJul 13, 13:15 UTC45m
2026-07-13 DAL789 CHS → ATL Jul 13, 12:25 UTCJul 13, 13:12 UTC47m
2026-07-13 DAL2493 ATL → CHS Jul 13, 00:43 UTCJul 13, 01:36 UTC53m
2026-07-13 DAL2493 - Jul 13, 00:45 UTCJul 13, 01:35 UTC50m
2026-07-12 DAL3195 - Jul 12, 21:50 UTCJul 12, 22:50 UTC1h 0m
2026-07-12 DAL3195 SDF → ATL Jul 12, 21:50 UTCJul 12, 22:51 UTC1h 1m
2026-07-12 DAL3195 ATL → SDF Jul 12, 19:20 UTCJul 12, 20:10 UTC50m
2026-07-12 DAL2952 - Jul 12, 16:30 UTCJul 12, 17:40 UTC1h 10m
2026-07-12 DAL2952 ATL → IND Jul 12, 14:15 UTCJul 12, 15:15 UTC1h 0m
2026-07-12 DAL1534 - Jul 12, 11:30 UTCJul 12, 12:35 UTC1h 5m
2026-07-12 DAL2224 ATL → MSY Jul 12, 05:15 UTCJul 12, 06:15 UTC1h 0m
2026-07-12 DAL2522 MSY → ATL Jul 12, 02:25 UTCJul 12, 03:25 UTC1h 0m
2026-07-12 DAL3157 - Jul 12, 01:10 UTCJul 12, 01:25 UTC15m
2026-07-11 DAL3157 ATL → BTR Jul 11, 17:55 UTCJul 11, 19:05 UTC1h 10m
2026-07-11 DAL2071 - Jul 11, 15:35 UTCJul 11, 16:25 UTC50m
2026-07-11 DAL2071 - Jul 11, 13:40 UTCJul 11, 14:25 UTC45m
2026-07-11 DAL3055 - Jul 11, 11:50 UTCJul 11, 12:30 UTC40m
2026-07-11 DAL3055 CHS → ATL Jul 11, 11:46 UTCJul 11, 12:28 UTC42m
2026-07-11 DAL2525 ATL → CHS Jul 11, 03:35 UTCJul 11, 04:20 UTC45m
2026-07-11 DAL3126 - Jul 11, 00:00 UTCJul 11, 01:15 UTC1h 15m
2026-07-10 DAL3126 ATL → IND Jul 10, 20:40 UTCJul 10, 22:00 UTC1h 20m
2026-07-10 DAL1481 - Jul 10, 17:30 UTCJul 10, 18:25 UTC55m
2026-07-10 DAL1481 ATL → SDF Jul 10, 14:40 UTCJul 10, 15:35 UTC55m
2026-07-10 DAL3129 - Jul 10, 12:00 UTCJul 10, 12:50 UTC50m
2026-07-10 DAL3086 ATL → PNS Jul 10, 02:25 UTCJul 10, 03:10 UTC45m
2026-07-09 DAL1568 - Jul 9, 23:30 UTCJul 10, 00:40 UTC1h 10m
2026-07-09 DAL1568 - Jul 9, 21:00 UTCJul 9, 22:15 UTC1h 15m
2026-07-09 DAL3198 - Jul 9, 17:10 UTCJul 9, 17:55 UTC45m
2026-07-09 DAL3198 ATL → PNS Jul 9, 14:55 UTCJul 9, 15:40 UTC45m
2026-07-09 DAL789 CHS → ATL Jul 9, 12:28 UTCJul 9, 13:12 UTC44m
2026-07-09 DAL1663 - Jul 9, 01:05 UTCJul 9, 01:50 UTC45m
2026-07-08 DAL3142 - Jul 8, 21:50 UTCJul 8, 22:30 UTC40m
2026-07-08 DAL3142 ATL → BNA Jul 8, 19:25 UTCJul 8, 20:10 UTC45m
2026-07-08 DAL2052 SLC → STL Jul 8, 16:50 UTCJul 8, 17:30 UTC40m
2026-07-08 DAL2052 SLC → STL Jul 8, 16:48 UTCJul 8, 17:44 UTC56m
2026-07-08 DAL2052 SLC → STL Jul 8, 14:15 UTCJul 8, 15:15 UTC1h 0m
2026-07-08 DAL1534 MSY → ATL Jul 8, 11:35 UTCJul 8, 12:35 UTC1h 0m
2026-07-08 DAL2072 ATL → MSY Jul 8, 02:45 UTCJul 8, 03:55 UTC1h 10m
2026-07-07 DAL1568 - Jul 7, 22:35 UTCJul 7, 23:50 UTC1h 15m
2026-07-07 DAL1568 - Jul 7, 19:30 UTCJul 7, 20:40 UTC1h 10m
2026-07-07 DAL3198 - Jul 7, 17:05 UTCJul 7, 17:55 UTC50m

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 N954DZ page for operator, model, and routing details .

Mode-S AD43E6 frequently asked

What is Mode-S code AD43E6?
AD43E6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N954DZ.
Where is Mode-S AD43E6 registered?
Mode-S code AD43E6 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 AD43E6 broadcasting right now?
No active broadcast right now. Last signal was 50m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD43E6, octal 53241746, decimal 11,355,110.
What flights does AD43E6 operate?
Mode-S AD43E6 has broadcast 20 distinct callsigns, including DAL2542, DAL2952, DAL2052, DAL1353, DAL3195.