Apparatus

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sensors Mode-S transponder

A42EFC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N369NW · AIRBUS A-320 · operated by DELTA AIR LINES INC

Hex
A42EFC
Octal
51027374
Decimal
10,759,932
Country
US
Tail
N369NW
Type
A320
No current signal · last broadcast 6h ago
Flights observed
482
Distinct callsigns
20
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S A42EFC.

Country allocation

The ICAO 24-bit address A42EFC 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
DAL2749 - 13 2026-07-12
DAL1337 Delta Air Lines 13 2026-06-07
DAL1242 - 13 2026-07-12
DAL1145 - 13 2026-07-07
DAL2982 Delta Air Lines 12 2026-07-02
DAL2688 Delta Air Lines 11 2026-05-25
DAL2566 Delta Air Lines 11 2026-05-24
DAL735 - 10 2026-07-10
DAL2790 Delta Air Lines 10 2026-06-15
DAL2994 - 9 2026-07-05
DAL2485 - 9 2026-06-29
DAL1842 - 9 2026-07-10
DAL1543 - 9 2026-07-07
DAL2996 Delta Air Lines 8 2026-07-05
DAL2896 Delta Air Lines 8 2026-06-01
DAL2660 Delta Air Lines 8 2026-07-05
DAL1853 - 8 2026-07-08
DAL1707 Delta Air Lines 8 2026-05-31
DAL1427 Delta Air Lines 8 2026-04-30
DAL2697 Delta Air Lines 7 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL3074 - Jul 14, 02:45 UTCJul 14, 03:25 UTC40m
2026-07-13 DAL1053 - Jul 13, 23:00 UTCJul 14, 01:05 UTC2h 5m
2026-07-13 DAL1053 ALB → ATL Jul 13, 23:00 UTCJul 14, 01:01 UTC2h 1m
2026-07-13 DAL1053 ATL → ALB Jul 13, 19:50 UTCJul 13, 21:55 UTC2h 5m
2026-07-13 DAL1676 - Jul 13, 15:55 UTCJul 13, 18:05 UTC2h 10m
2026-07-13 DAL1676 - Jul 13, 12:30 UTCJul 13, 14:30 UTC2h 0m
2026-07-13 DAL3162 - Jul 13, 10:15 UTCJul 13, 11:05 UTC50m
2026-07-13 DAL3074 - Jul 13, 03:01 UTCJul 13, 03:40 UTC40m
2026-07-13 DAL2054 - Jul 13, 00:05 UTCJul 13, 01:40 UTC1h 35m
2026-07-12 DAL1749 MSP → BUF Jul 12, 20:48 UTCJul 12, 22:29 UTC1h 41m
2026-07-12 DAL1749 MSP → BUF Jul 12, 20:50 UTCJul 12, 22:30 UTC1h 40m
2026-07-12 DAL1242 AUS → MSP Jul 12, 11:15 UTCJul 12, 13:30 UTC2h 15m
2026-07-12 DAL2749 MSP → AUS Jul 12, 00:45 UTCJul 12, 02:55 UTC2h 10m
2026-07-12 DAL2749 MSP → AUS Jul 12, 00:42 UTCJul 12, 02:52 UTC2h 10m
2026-07-11 DAL1242 AUS → MSP Jul 11, 15:55 UTCJul 11, 18:10 UTC2h 15m
2026-07-11 DAL2749 MSP → AUS Jul 11, 01:05 UTCJul 11, 03:15 UTC2h 10m
2026-07-11 DAL2749 MSP → AUS Jul 11, 01:05 UTCJul 11, 03:17 UTC2h 12m
2026-07-10 DAL1842 - Jul 10, 22:20 UTCJul 10, 23:40 UTC1h 20m
2026-07-10 DAL1842 DTW → MSP Jul 10, 22:17 UTCJul 10, 23:37 UTC1h 20m
2026-07-10 DAL735 - Jul 10, 18:40 UTCJul 10, 20:45 UTC2h 5m
2026-07-10 DAL735 DFW → DTW Jul 10, 18:39 UTCJul 10, 20:46 UTC2h 7m
2026-07-10 DAL2970 MSP → DFW Jul 10, 15:15 UTCJul 10, 17:20 UTC2h 5m
2026-07-10 DAL1242 AUS → MSP Jul 10, 11:15 UTCJul 10, 13:35 UTC2h 20m
2026-07-10 DAL1242 AUS → MSP Jul 10, 11:13 UTCJul 10, 13:28 UTC2h 15m
2026-07-10 DAL2749 MSP → AUS Jul 10, 01:45 UTCJul 10, 03:50 UTC2h 5m
2026-07-09 DAL2900 DFW → MSP Jul 9, 20:45 UTCJul 9, 22:40 UTC1h 55m
2026-07-09 DAL1041 - Jul 9, 16:55 UTCJul 9, 19:10 UTC2h 15m
2026-07-09 DAL3191 ATL → GSO Jul 9, 14:40 UTCJul 9, 15:20 UTC40m
2026-07-09 DAL3191 ATL → GSO Jul 9, 12:35 UTCJul 9, 13:20 UTC45m
2026-07-09 DAL2964 - Jul 9, 09:45 UTCJul 9, 11:10 UTC1h 25m
2026-07-09 DAL2989 - Jul 9, 02:35 UTCJul 9, 03:50 UTC1h 15m
2026-07-09 DAL2989 DTW → BDL Jul 9, 02:30 UTCJul 9, 03:50 UTC1h 20m
2026-07-09 DAL1435 MSP → DTW Jul 9, 00:00 UTCJul 9, 01:20 UTC1h 20m
2026-07-08 DAL1853 GEG → MSP Jul 8, 19:50 UTCJul 8, 22:20 UTC2h 30m
2026-07-08 DAL1853 MSP → GEG Jul 8, 15:40 UTCJul 8, 18:20 UTC2h 40m
2026-07-08 DAL2610 MSP → MSP Jul 8, 03:05 UTCJul 8, 14:15 UTC11h 10m
2026-07-07 DAL2873 DFW → MSP Jul 7, 23:45 UTCJul 8, 01:45 UTC2h 0m
2026-07-07 DAL1543 - Jul 7, 20:15 UTCJul 7, 22:35 UTC2h 20m
2026-07-07 DAL1145 - Jul 7, 16:05 UTCJul 7, 17:25 UTC1h 20m
2026-07-07 DAL1145 - Jul 7, 13:20 UTCJul 7, 14:40 UTC1h 20m
2026-07-07 DAL1145 - Jul 7, 01:15 UTCJul 7, 02:40 UTC1h 25m
2026-07-06 DAL1145 - Jul 6, 14:10 UTCJul 6, 15:30 UTC1h 20m
2026-07-06 DAL2964 - Jul 6, 09:40 UTCJul 6, 11:10 UTC1h 30m
2026-07-06 DAL2989 - Jul 6, 02:25 UTCJul 6, 03:00 UTC35m
2026-07-06 DAL2989 DTW → BDL Jul 6, 02:22 UTCJul 6, 03:35 UTC1h 13m
2026-07-05 DAL2994 - Jul 5, 22:35 UTCJul 6, 00:25 UTC1h 50m
2026-07-05 DAL2994 - Jul 5, 19:30 UTCJul 5, 21:25 UTC1h 55m
2026-07-05 DAL2333 - Jul 5, 16:20 UTCJul 5, 18:05 UTC1h 45m
2026-07-05 DAL2333 - Jul 5, 13:15 UTCJul 5, 15:10 UTC1h 55m
2026-07-05 DAL2996 RDU → BOS Jul 5, 10:35 UTCJul 5, 11:55 UTC1h 20m

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 N369NW page for operator, model, and routing details .

Mode-S A42EFC frequently asked

What is Mode-S code A42EFC?
A42EFC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N369NW.
Where is Mode-S A42EFC registered?
Mode-S code A42EFC 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 A42EFC 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 A42EFC, octal 51027374, decimal 10,759,932.
What flights does A42EFC operate?
Mode-S A42EFC has broadcast 20 distinct callsigns, including DAL2749, DAL1337, DAL1242, DAL1145, DAL2982.