Apparatus

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sensors Mode-S transponder

A042DB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N116DU · AIRBUS A220-100 · operated by DELTA AIR LINES INC

Hex
A042DB
Octal
50041333
Decimal
10,502,875
Country
US
Tail
N116DU
Type
BCS1
Broadcasting now · callsign DAL2285 · 8,625 ft
Flights observed
438
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

A042DB is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A042DB 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
DAL2866 Delta Air Lines 14 2026-07-04
DAL2903 - 13 2026-07-12
DAL1198 - 12 2026-07-12
DAL2971 Delta Air Lines 10 2026-04-24
DAL2327 - 10 2026-06-24
DAL2141 Delta Air Lines 9 2026-06-02
DAL1367 - 9 2026-07-09
DAL1035 Delta Air Lines 9 2026-05-29
DAL1020 Delta Air Lines 8 2026-06-02
DAL2819 - 7 2026-07-13
DAL2680 - 7 2026-06-14
DAL2656 Delta Air Lines 7 2026-04-15
DAL1533 - 7 2026-06-25
DAL314 Delta Air Lines 6 2026-06-02
DAL3123 - 6 2026-06-26
DAL2783 Delta Air Lines 6 2026-05-11
DAL2528 Delta Air Lines 6 2026-06-26
DAL1623 - 6 2026-07-08
DAL1503 - 6 2026-07-06
DAL1272 - 6 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL2285 MSP → BDL Jul 14, 19:55 UTCJul 14, 22:10 UTC2h 15m
2026-07-14 DAL845 - Jul 14, 15:50 UTCJul 14, 17:25 UTC1h 35m
2026-07-14 DAL845 - Jul 14, 12:45 UTCJul 14, 14:25 UTC1h 40m
2026-07-14 DAL2130 ORD → MSP Jul 14, 01:40 UTCJul 14, 02:35 UTC55m
2026-07-13 DAL2130 MSP → ORD Jul 13, 22:50 UTCJul 14, 00:10 UTC1h 20m
2026-07-13 DAL2819 - Jul 13, 19:20 UTCJul 13, 21:25 UTC2h 5m
2026-07-13 DAL2819 - Jul 13, 15:45 UTCJul 13, 17:50 UTC2h 5m
2026-07-13 DAL1050 - Jul 13, 11:35 UTCJul 13, 13:55 UTC2h 20m
2026-07-13 DAL2514 - Jul 13, 02:20 UTCJul 13, 04:55 UTC2h 35m
2026-07-12 DAL2903 - Jul 12, 23:10 UTCJul 13, 01:10 UTC2h 0m
2026-07-12 DAL2903 - Jul 12, 20:10 UTCJul 12, 22:10 UTC2h 0m
2026-07-12 DAL1198 - Jul 12, 16:55 UTCJul 12, 18:25 UTC1h 30m
2026-07-12 DAL1198 SNA → SLC Jul 12, 16:55 UTCJul 12, 18:20 UTC1h 25m
2026-07-12 DAL1198 SLC → SNA Jul 12, 14:10 UTCJul 12, 15:40 UTC1h 30m
2026-07-11 DAL1526 SMF → SLC Jul 11, 12:40 UTCJul 11, 13:55 UTC1h 15m
2026-07-11 DAL1582 SLC → SMF Jul 11, 05:15 UTCJul 11, 06:35 UTC1h 20m
2026-07-11 DAL1299 - Jul 11, 00:15 UTCJul 11, 02:55 UTC2h 40m
2026-07-10 DAL1299 - Jul 10, 19:55 UTCJul 10, 22:35 UTC2h 40m
2026-07-10 DAL1198 - Jul 10, 16:50 UTCJul 10, 18:20 UTC1h 30m
2026-07-10 DAL1198 - Jul 10, 14:15 UTCJul 10, 15:40 UTC1h 25m
2026-07-10 DAL2335 - Jul 10, 12:10 UTCJul 10, 12:40 UTC30m
2026-07-10 DAL2608 - Jul 10, 03:40 UTCJul 10, 04:05 UTC25m
2026-07-10 DAL1342 - Jul 10, 00:10 UTCJul 10, 01:25 UTC1h 15m
2026-07-09 DAL1342 SLC → SMF Jul 9, 21:50 UTCJul 9, 23:05 UTC1h 15m
2026-07-09 DAL1367 - Jul 9, 16:50 UTCJul 9, 18:10 UTC1h 20m
2026-07-09 DAL1367 SLC → SMF Jul 9, 14:20 UTCJul 9, 15:40 UTC1h 20m
2026-07-09 DAL2544 - Jul 9, 11:45 UTCJul 9, 12:50 UTC1h 5m
2026-07-09 DAL1586 SLC → DEN Jul 9, 02:10 UTCJul 9, 03:30 UTC1h 20m
2026-07-08 DAL1623 DEN → SLC Jul 8, 22:10 UTCJul 8, 23:15 UTC1h 5m
2026-07-08 DAL1623 DEN → SLC Jul 8, 22:05 UTCJul 8, 23:06 UTC1h 1m
2026-07-08 DAL1623 SLC → DEN Jul 8, 19:35 UTCJul 8, 20:40 UTC1h 5m
2026-07-08 DAL1367 - Jul 8, 16:50 UTCJul 8, 18:05 UTC1h 15m
2026-07-08 DAL1367 SLC → SMF Jul 8, 14:25 UTCJul 8, 15:45 UTC1h 20m
2026-07-08 DAL2544 - Jul 8, 11:45 UTCJul 8, 12:55 UTC1h 10m
2026-07-08 DAL1586 SLC → DEN Jul 8, 01:15 UTCJul 8, 02:15 UTC1h 0m
2026-07-08 DAL1586 SLC → DEN Jul 8, 01:14 UTCJul 8, 02:14 UTC1h 0m
2026-07-07 DAL1623 DEN → SLC Jul 7, 22:29 UTCJul 7, 23:30 UTC1h 1m
2026-07-07 DAL1623 DEN → SLC Jul 7, 22:30 UTCJul 7, 23:35 UTC1h 5m
2026-07-07 DAL1623 SLC → DEN Jul 7, 19:35 UTCJul 7, 20:45 UTC1h 10m
2026-07-07 DAL1314 SJC → SLC Jul 7, 13:05 UTCJul 7, 14:30 UTC1h 25m
2026-07-07 DAL1272 SLC → SJC Jul 7, 04:55 UTCJul 7, 06:25 UTC1h 30m
2026-07-07 DAL2585 SMF → SLC Jul 7, 02:35 UTCJul 7, 03:45 UTC1h 10m
2026-07-07 DAL2585 SLC → SMF Jul 7, 00:15 UTCJul 7, 01:35 UTC1h 20m
2026-07-06 DAL1503 GEG → SLC Jul 6, 00:15 UTCJul 6, 01:35 UTC1h 20m
2026-07-05 DAL1503 - Jul 5, 21:45 UTCJul 5, 23:05 UTC1h 20m
2026-07-05 DAL930 - Jul 5, 17:45 UTCJul 5, 20:15 UTC2h 30m
2026-07-05 DAL2667 - Jul 5, 14:00 UTCJul 5, 16:25 UTC2h 25m
2026-07-05 DAL1635 - Jul 5, 11:30 UTCJul 5, 12:45 UTC1h 15m
2026-07-05 DAL1657 - Jul 5, 02:30 UTCJul 5, 03:40 UTC1h 10m
2026-07-04 DAL2866 MSP → TPA Jul 4, 22:20 UTCJul 5, 00:40 UTC2h 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 N116DU page for operator, model, and routing details .

Mode-S A042DB frequently asked

What is Mode-S code A042DB?
A042DB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N116DU.
Where is Mode-S A042DB registered?
Mode-S code A042DB 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 A042DB broadcasting right now?
Yes. Mode-S A042DB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A042DB, octal 50041333, decimal 10,502,875.
What flights does A042DB operate?
Mode-S A042DB has broadcast 20 distinct callsigns, including DAL2866, DAL2903, DAL1198, DAL2971, DAL2327.