Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 Jul 26, 20:50 UTC
Flights observed
581
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:50 UTC

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
DAL2383 Delta Air Lines 8 2026-07-24
DAL1324 Delta Air Lines 8 2026-05-28
DAL2403 Delta Air Lines 7 2026-07-24
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
DAL1842 Delta Air Lines 6 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2994 SEA → SFO Jul 26, 19:10 UTCJul 26, 20:50 UTC1h 40m
2026-07-26 DAL1145 BNA → BOS Jul 26, 15:45 UTCJul 26, 17:25 UTC1h 40m
2026-07-26 DAL1145 BNA → BOS Jul 26, 15:38 UTCJul 26, 17:11 UTC1h 33m
2026-07-26 DAL1145 BNA → BOS Jul 26, 13:05 UTCJul 26, 14:20 UTC1h 15m
2026-07-26 DAL2996 RDU → BOS Jul 26, 10:10 UTCJul 26, 11:20 UTC1h 10m
2026-07-26 DAL2660 DTW → PHL Jul 26, 01:55 UTCJul 26, 03:05 UTC1h 10m
2026-07-25 DAL1648 DTW → DEN Jul 25, 21:25 UTCJul 25, 23:40 UTC2h 15m
2026-07-25 DAL1648 DTW → DEN Jul 25, 16:50 UTCJul 25, 19:20 UTC2h 30m
2026-07-25 DAL2566 DTW → EWR Jul 25, 14:25 UTCJul 25, 15:40 UTC1h 15m
2026-07-25 DAL2566 DTW → EWR Jul 25, 14:22 UTCJul 25, 15:36 UTC1h 14m
2026-07-25 DAL2566 DTW → EWR Jul 25, 11:20 UTCJul 25, 12:35 UTC1h 15m
2026-07-25 DAL1484 ATL → MSP Jul 25, 01:00 UTCJul 25, 02:05 UTC1h 5m
2026-07-25 DAL1484 ATL → MSP Jul 25, 00:55 UTCJul 25, 02:06 UTC1h 11m
2026-07-24 DAL2383 LAS → SEA Jul 24, 20:25 UTCJul 24, 23:30 UTC3h 5m
2026-07-24 DAL2383 LAS → SEA Jul 24, 15:15 UTCJul 24, 18:40 UTC3h 25m
2026-07-24 DAL2403 CMH → MSP Jul 24, 11:05 UTCJul 24, 12:45 UTC1h 40m
2026-07-24 DAL1356 TPA → LGA Jul 24, 01:40 UTCJul 24, 03:00 UTC1h 20m
2026-07-23 DAL2383 LAS → SEA Jul 23, 21:15 UTCJul 24, 00:20 UTC3h 5m
2026-07-23 DAL2383 LAS → SEA Jul 23, 16:15 UTCJul 23, 19:50 UTC3h 35m
2026-07-23 DAL2403 CMH → MSP Jul 23, 13:20 UTCJul 23, 15:05 UTC1h 45m
2026-07-23 DAL2403 CMH → MSP Jul 23, 13:18 UTCJul 23, 15:01 UTC1h 43m
2026-07-23 DAL1356 TPA → LGA Jul 23, 01:50 UTCJul 23, 03:11 UTC1h 21m
2026-07-23 DAL1356 TPA → LGA Jul 23, 01:50 UTCJul 23, 03:10 UTC1h 20m
2026-07-22 DAL1842 PVR → ATL Jul 22, 22:30 UTCJul 22, 23:50 UTC1h 20m
2026-07-22 DAL1842 PVR → ATL Jul 22, 22:26 UTCJul 22, 23:46 UTC1h 20m
2026-07-22 DAL735 LGA → ATL Jul 22, 19:05 UTCJul 22, 21:15 UTC2h 10m
2026-07-22 DAL2970 ATL → MKE Jul 22, 15:10 UTCJul 22, 17:05 UTC1h 55m
2026-07-22 DAL1242 AUS → MSP Jul 22, 11:20 UTCJul 22, 13:40 UTC2h 20m
2026-07-22 DAL1242 AUS → MSP Jul 22, 11:15 UTCJul 22, 13:39 UTC2h 24m
2026-07-22 DAL2749 BNA → BOS Jul 22, 01:00 UTCJul 22, 03:05 UTC2h 5m
2026-07-22 DAL2749 BNA → BOS Jul 22, 00:58 UTCJul 22, 03:05 UTC2h 7m
2026-07-21 DAL2900 JAX → LGA Jul 21, 20:55 UTCJul 21, 22:50 UTC1h 55m
2026-07-21 DAL1041 - Jul 21, 16:50 UTCJul 21, 19:00 UTC2h 10m
2026-07-21 DAL3191 ATL → GSO Jul 21, 14:45 UTCJul 21, 15:25 UTC40m
2026-07-21 DAL3191 ATL → GSO Jul 21, 12:40 UTCJul 21, 13:20 UTC40m
2026-07-21 DAL1484 ATL → MSP Jul 21, 01:45 UTCJul 21, 02:50 UTC1h 5m
2026-07-20 DAL2982 ORD → BOS Jul 20, 22:10 UTCJul 21, 00:25 UTC2h 14m
2026-07-20 DAL2982 ORD → BOS Jul 20, 18:20 UTCJul 20, 20:55 UTC2h 35m
2026-07-20 DAL2492 YYC → MSP Jul 20, 14:30 UTCJul 20, 16:25 UTC1h 55m
2026-07-20 DAL2485 BOS → BUF Jul 20, 00:00 UTCJul 20, 02:30 UTC2h 30m
2026-07-19 DAL2203 DTW → MSP Jul 19, 20:55 UTCJul 19, 22:20 UTC1h 25m
2026-07-19 DAL2926 - Jul 19, 18:45 UTCJul 19, 19:15 UTC30m
2026-07-19 DAL2926 - Jul 19, 16:45 UTCJul 19, 18:40 UTC1h 55m
2026-07-19 DAL2926 - Jul 19, 12:45 UTCJul 19, 15:15 UTC2h 30m
2026-07-19 DAL2964 - Jul 19, 09:45 UTCJul 19, 11:10 UTC1h 25m
2026-07-19 DAL2989 DTW → BDL Jul 19, 01:55 UTCJul 19, 03:10 UTC1h 15m
2026-07-18 DAL735 DFW → DTW Jul 18, 20:25 UTCJul 18, 22:55 UTC2h 30m
2026-07-18 DAL735 - Jul 18, 16:40 UTCJul 18, 18:50 UTC2h 10m
2026-07-18 DAL1558 - Jul 18, 14:00 UTCJul 18, 15:05 UTC1h 5m
2026-07-18 DAL1558 DCA → DTW Jul 18, 13:56 UTCJul 18, 15:02 UTC1h 6m

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 Jul 26, 20:50 UTC.
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.