Apparatus

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sensors Mode-S transponder

A3DFFE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N349NW · AIRBUS A-320 · operated by DELTA AIR LINES INC

Hex
A3DFFE
Octal
50757776
Decimal
10,739,710
Country
US
Tail
N349NW
Type
A320
No current signal · last broadcast 6h ago
Flights observed
513
Distinct callsigns
20
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S A3DFFE.

Country allocation

The ICAO 24-bit address A3DFFE 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
DAL2009 - 16 2026-06-22
DAL926 - 15 2026-06-26
DAL1408 Delta Air Lines 13 2026-06-04
DAL1093 Delta Air Lines 12 2026-05-07
DAL360 - 11 2026-06-26
DAL455 Delta Air Lines 10 2026-06-13
DAL325 Delta Air Lines 8 2026-06-03
DAL2389 Delta Air Lines 8 2026-06-05
DAL1324 Delta Air Lines 8 2026-05-28
DAL1853 - 7 2026-07-13
DAL1509 Delta Air Lines 7 2026-06-18
DAL1053 - 7 2026-06-28
DAL775 Delta Air Lines 6 2026-06-15
DAL380 Delta Air Lines 6 2026-06-23
DAL3165 Delta Air Lines 6 2026-06-02
DAL2902 Delta Air Lines 6 2026-06-01
DAL2892 Delta Air Lines 6 2026-05-31
DAL1063 - 6 2026-06-25
DAL832 Delta Air Lines 5 2026-05-28
DAL414 Delta Air Lines 5 2026-04-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 DAL1853 GEG → MSP Jul 13, 21:25 UTCJul 13, 23:45 UTC2h 20m
2026-07-13 DAL1853 MSP → GEG Jul 13, 17:10 UTCJul 13, 19:40 UTC2h 30m
2026-07-13 DAL1853 MSP → GEG Jul 13, 17:08 UTCJul 13, 19:36 UTC2h 28m
2026-07-13 DAL2808 - Jul 13, 11:45 UTCJul 13, 14:10 UTC2h 25m
2026-07-13 DAL2808 BOI → MSP Jul 13, 11:45 UTCJul 13, 14:08 UTC2h 23m
2026-07-13 DAL2111 SLC → BOI Jul 13, 06:10 UTCJul 13, 06:55 UTC45m
2026-07-13 DAL2581 AUS → SLC Jul 13, 02:15 UTCJul 13, 04:25 UTC2h 10m
2026-07-12 DAL2581 SLC → AUS Jul 12, 22:20 UTCJul 13, 00:45 UTC2h 25m
2026-07-12 DAL920 - Jul 12, 17:05 UTCJul 12, 18:25 UTC1h 20m
2026-07-12 DAL920 SLC → SFO Jul 12, 14:05 UTCJul 12, 15:45 UTC1h 40m
2026-07-12 DAL1360 - Jul 12, 11:25 UTCJul 12, 12:20 UTC55m
2026-07-12 DAL1360 BIL → SLC Jul 12, 11:20 UTCJul 12, 12:18 UTC58m
2026-07-12 DAL1340 SLC → BIL Jul 12, 03:39 UTCJul 12, 04:29 UTC50m
2026-07-12 DAL1340 - Jul 12, 03:40 UTCJul 12, 04:30 UTC50m
2026-07-11 DAL2581 AUS → SLC Jul 11, 23:30 UTCJul 12, 02:01 UTC2h 30m
2026-07-11 DAL2581 SLC → AUS Jul 11, 19:35 UTCJul 11, 21:50 UTC2h 15m
2026-07-11 DAL1203 - Jul 11, 16:45 UTCJul 11, 18:10 UTC1h 25m
2026-07-11 DAL1203 PDX → SLC Jul 11, 16:42 UTCJul 11, 18:04 UTC1h 22m
2026-07-11 DAL1203 SLC → PDX Jul 11, 13:55 UTCJul 11, 15:20 UTC1h 25m
2026-07-11 DAL1360 - Jul 11, 11:30 UTCJul 11, 12:30 UTC1h 0m
2026-07-11 DAL1340 - Jul 11, 03:30 UTCJul 11, 04:25 UTC55m
2026-07-11 DAL1088 SFO → SLC Jul 11, 00:41 UTCJul 11, 01:57 UTC1h 16m
2026-07-11 DAL1088 SFO → SLC Jul 11, 00:45 UTCJul 11, 02:05 UTC1h 20m
2026-07-10 DAL1088 SLC → SFO Jul 10, 21:30 UTCJul 10, 23:05 UTC1h 35m
2026-07-10 DAL2671 AUS → SLC Jul 10, 17:50 UTCJul 10, 20:13 UTC2h 23m
2026-07-10 DAL2671 AUS → SLC Jul 10, 17:50 UTCJul 10, 20:10 UTC2h 20m
2026-07-10 DAL2671 SLC → AUS Jul 10, 14:10 UTCJul 10, 16:25 UTC2h 15m
2026-07-09 DAL1754 - Jul 9, 18:05 UTCJul 9, 19:00 UTC55m
2026-07-09 DAL2304 - Jul 9, 14:05 UTCJul 9, 16:35 UTC2h 30m
2026-07-08 DAL1842 - Jul 8, 22:25 UTCJul 8, 23:55 UTC1h 30m
2026-07-08 DAL735 - Jul 8, 18:40 UTCJul 8, 20:55 UTC2h 15m
2026-07-08 DAL2970 MSP → DFW Jul 8, 15:25 UTCJul 8, 17:16 UTC1h 51m
2026-07-08 DAL2970 MSP → DFW Jul 8, 15:25 UTCJul 8, 17:25 UTC2h 0m
2026-07-08 DAL2403 CMH → MSP Jul 8, 11:40 UTCJul 8, 13:05 UTC1h 25m
2026-07-08 DAL1356 MSP → CMH Jul 8, 01:20 UTCJul 8, 02:40 UTC1h 20m
2026-07-07 DAL2383 LAS → SEA Jul 7, 20:15 UTCJul 7, 23:25 UTC3h 10m
2026-07-07 DAL2383 LAS → SEA Jul 7, 15:10 UTCJul 7, 18:45 UTC3h 35m
2026-07-07 DAL2403 CMH → MSP Jul 7, 11:10 UTCJul 7, 12:35 UTC1h 25m
2026-07-07 DAL1356 MSP → CMH Jul 7, 02:00 UTCJul 7, 03:20 UTC1h 20m
2026-07-06 DAL1842 PVR → ATL Jul 6, 23:15 UTCJul 7, 00:30 UTC1h 15m
2026-07-06 DAL735 - Jul 6, 19:55 UTCJul 6, 21:55 UTC2h 0m
2026-07-06 DAL2970 MSP → DFW Jul 6, 15:05 UTCJul 6, 17:05 UTC2h 0m
2026-07-06 DAL2970 MSP → DFW Jul 6, 15:05 UTCJul 6, 16:51 UTC1h 46m
2026-07-06 DAL2403 CMH → MSP Jul 6, 11:15 UTCJul 6, 12:45 UTC1h 30m
2026-07-06 DAL2403 CMH → MSP Jul 6, 11:10 UTCJul 6, 12:42 UTC1h 32m
2026-07-06 DAL1356 MSP → CMH Jul 6, 02:15 UTCJul 6, 03:40 UTC1h 25m
2026-07-05 DAL1842 PVR → ATL Jul 5, 23:40 UTCJul 6, 00:55 UTC1h 15m
2026-07-05 DAL1842 PVR → ATL Jul 5, 23:36 UTCJul 6, 00:55 UTC1h 19m
2026-07-05 DAL1474 RSW → DTW Jul 5, 19:35 UTCJul 5, 22:00 UTC2h 25m
2026-07-05 DAL1474 RSW → DTW Jul 5, 19:34 UTCJul 5, 21:59 UTC2h 25m

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 N349NW page for operator, model, and routing details .

Mode-S A3DFFE frequently asked

What is Mode-S code A3DFFE?
A3DFFE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N349NW.
Where is Mode-S A3DFFE registered?
Mode-S code A3DFFE 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 A3DFFE broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3DFFE, octal 50757776, decimal 10,739,710.
What flights does A3DFFE operate?
Mode-S A3DFFE has broadcast 20 distinct callsigns, including DAL2009, DAL926, DAL1408, DAL1093, DAL360.