Apparatus

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sensors Mode-S transponder

A379DD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N323ED · operated by AMERICAN AIRLINES INC

Hex
A379DD
Octal
50674735
Decimal
10,713,565
Country
US
Tail
N323ED
Type
E75L
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
747
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A379DD.

Country allocation

The ICAO 24-bit address A379DD 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
ENY3521 - 8 2026-06-23
ENY4024 - 7 2026-06-17
ENY3947 Envoy Air 7 2026-05-12
ENY3803 Envoy Air 7 2026-06-26
ENY3560 - 7 2026-07-05
ENY3504 - 7 2026-06-23
ENY4219 Envoy Air 6 2026-05-02
ENY4125 - 6 2026-06-19
ENY3793 - 6 2026-07-14
ENY4291 - 5 2026-06-19
ENY4256 Envoy Air 5 2026-05-27
ENY4208 - 5 2026-06-23
ENY4204 - 5 2026-07-13
ENY4176 Envoy Air 5 2026-05-15
ENY4142 - 5 2026-07-16
ENY4079 Envoy Air 5 2026-07-25
ENY4019 - 5 2026-06-17
ENY3992 - 5 2026-07-15
ENY3933 - 5 2026-07-15
ENY3853 Envoy Air 5 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3481 DFW → CHS Jul 26, 20:25 UTCJul 26, 21:15 UTC50m
2026-07-26 ENY3526 DFW → SAT Jul 26, 16:45 UTCJul 26, 18:50 UTC2h 5m
2026-07-26 ENY3526 DFW → SAT Jul 26, 13:40 UTCJul 26, 16:00 UTC2h 20m
2026-07-26 ENY3364 DCA → BTV Jul 26, 11:25 UTCJul 26, 12:15 UTC50m
2026-07-26 ENY3364 DCA → BTV Jul 26, 11:19 UTCJul 26, 12:13 UTC54m
2026-07-26 ENY3444 RST → ORD Jul 26, 03:35 UTCJul 26, 04:55 UTC1h 20m
2026-07-25 ENY3584 HDN → ORD Jul 25, 23:35 UTCJul 26, 00:40 UTC1h 5m
2026-07-25 ENY3584 HDN → ORD Jul 25, 23:30 UTCJul 26, 00:40 UTC1h 10m
2026-07-25 ENY3584 HDN → ORD Jul 25, 21:30 UTCJul 25, 22:35 UTC1h 5m
2026-07-25 ENY3863 STL → ORD Jul 25, 18:15 UTCJul 25, 20:00 UTC1h 45m
2026-07-25 ENY3863 STL → ORD Jul 25, 18:09 UTCJul 25, 20:00 UTC1h 51m
2026-07-25 ENY3863 STL → ORD Jul 25, 15:25 UTCJul 25, 16:55 UTC1h 30m
2026-07-25 ENY4158 ORD → BWI Jul 25, 12:25 UTCJul 25, 14:05 UTC1h 40m
2026-07-25 ENY4079 DFW → LIT Jul 25, 02:30 UTCJul 25, 03:05 UTC35m
2026-07-25 ENY3635 ORD → IND Jul 25, 00:20 UTCJul 25, 01:10 UTC50m
2026-07-25 ENY3635 ORD → IND Jul 25, 00:15 UTCJul 25, 01:08 UTC53m
2026-07-24 ENY3635 ORD → IND Jul 24, 22:20 UTCJul 24, 22:55 UTC35m
2026-07-24 ENY3847 ORD → GSP Jul 24, 20:10 UTCJul 24, 21:05 UTC55m
2026-07-24 ENY3847 ORD → GSP Jul 24, 17:50 UTCJul 24, 18:35 UTC45m
2026-07-24 ENY4005 TRC → DFW Jul 24, 15:30 UTCJul 24, 16:20 UTC50m
2026-07-24 ENY4005 TRC → DFW Jul 24, 13:45 UTCJul 24, 14:20 UTC35m
2026-07-24 ENY3473 STL → MIA Jul 24, 10:30 UTCJul 24, 12:10 UTC1h 40m
2026-07-24 ENY3798 ORD → TYS Jul 24, 02:20 UTCJul 24, 03:55 UTC1h 35m
2026-07-24 ENY3798 ORD → TYS Jul 24, 02:19 UTCJul 24, 03:52 UTC1h 33m
2026-07-23 ENY3762 ORD → BWI Jul 23, 20:40 UTCJul 24, 01:15 UTC4h 35m
2026-07-23 ENY4218 DFW → MSY Jul 23, 17:22 UTCJul 23, 18:56 UTC1h 34m
2026-07-23 ENY4218 DFW → MSY Jul 23, 14:45 UTCJul 23, 15:45 UTC1h 0m
2026-07-23 ENY3392 AUS → ORD Jul 23, 11:40 UTCJul 23, 13:25 UTC1h 45m
2026-07-23 ENY3385 FAR → DFW Jul 23, 01:35 UTCJul 23, 03:15 UTC1h 40m
2026-07-23 ENY3385 FAR → DFW Jul 23, 01:31 UTCJul 23, 03:14 UTC1h 43m
2026-07-22 ENY3678 ABQ → AUS Jul 22, 22:35 UTCJul 22, 23:40 UTC1h 5m
2026-07-22 ENY3678 ABQ → AUS Jul 22, 20:35 UTCJul 22, 21:35 UTC1h 0m
2026-07-22 ENY3526 DFW → SAT Jul 22, 16:50 UTCJul 22, 19:00 UTC2h 10m
2026-07-22 ENY3526 DFW → SAT Jul 22, 13:35 UTCJul 22, 15:50 UTC2h 15m
2026-07-22 ENY4179 DTW → DFW Jul 22, 11:25 UTCJul 22, 12:10 UTC45m
2026-07-22 ENY4179 DTW → DFW Jul 22, 11:17 UTCJul 22, 12:07 UTC50m
2026-07-22 ENY3537 DFW → FSM Jul 22, 04:20 UTCJul 22, 04:55 UTC35m
2026-07-22 ENY3642 DFW → LIT Jul 22, 01:35 UTCJul 22, 02:40 UTC1h 5m
2026-07-22 ENY3642 DFW → LIT Jul 22, 01:34 UTCJul 22, 02:37 UTC1h 3m
2026-07-21 ENY3642 DFW → LIT Jul 21, 23:25 UTCJul 22, 00:20 UTC55m
2026-07-21 ENY3726 AUS → DFW Jul 21, 21:00 UTCJul 21, 21:46 UTC46m
2026-07-21 ENY3726 AUS → DFW Jul 21, 21:00 UTCJul 21, 21:45 UTC45m
2026-07-21 ENY3726 - Jul 21, 19:10 UTCJul 21, 19:40 UTC30m
2026-07-21 ENY3539 - Jul 21, 16:45 UTCJul 21, 18:00 UTC1h 15m
2026-07-21 ENY3539 - Jul 21, 14:25 UTCJul 21, 15:35 UTC1h 10m
2026-07-21 ENY3418 AUS → ORD Jul 21, 10:00 UTCJul 21, 12:05 UTC2h 5m
2026-07-20 ENY3995 DFW → CMH Jul 20, 22:50 UTCJul 21, 01:10 UTC2h 20m
2026-07-20 ENY3506 - Jul 20, 20:00 UTCJul 20, 21:15 UTC1h 15m
2026-07-20 ENY3506 - Jul 20, 17:30 UTCJul 20, 18:30 UTC1h 0m
2026-07-20 ENY3389 - Jul 20, 15:30 UTCJul 20, 16:20 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 N323ED page for operator, model, and routing details .

Mode-S A379DD frequently asked

What is Mode-S code A379DD?
A379DD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N323ED.
Where is Mode-S A379DD registered?
Mode-S code A379DD 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 A379DD 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 A379DD, octal 50674735, decimal 10,713,565.
What flights does A379DD operate?
Mode-S A379DD has broadcast 20 distinct callsigns, including ENY3521, ENY4024, ENY3947, ENY3803, ENY3560.