Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A04E00

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N119DU · AIRBUS A220-100 · operated by BANK OF UTAH TRUSTEE

Hex
A04E00
Octal
50047000
Decimal
10,505,728
Country
US
Tail
N119DU
Type
BCS1
Broadcasting now · callsign DAL2455 · 36,000 ft
Flights observed
322
Distinct callsigns
20
Country
US
Last broadcast
6m ago

Current position

A04E00 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A04E00 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
DAL2985 Delta Air Lines 9 2026-04-27
DAL2533 Delta Air Lines 7 2026-05-04
DAL1641 - 7 2026-06-16
DAL1367 - 6 2026-07-11
DAL724 Delta Air Lines 5 2026-04-23
DAL563 Delta Air Lines 5 2026-04-27
DAL2895 Delta Air Lines 5 2026-06-16
DAL2661 - 5 2026-06-27
DAL2006 Delta Air Lines 5 2026-06-06
DAL1277 - 5 2026-07-08
DAL8962 Delta Air Lines 4 2026-05-14
DAL3073 Delta Air Lines 4 2026-04-26
DAL2971 Delta Air Lines 4 2026-04-17
DAL2903 - 4 2026-07-10
DAL2885 Delta Air Lines 4 2026-06-04
DAL2866 Delta Air Lines 4 2026-04-14
DAL2792 Delta Air Lines 4 2026-05-25
DAL2772 - 4 2026-06-27
DAL2656 Delta Air Lines 4 2026-04-16
DAL2622 Delta Air Lines 4 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL2455 - Jul 14, 19:30 UTCJul 14, 20:00 UTC30m
2026-07-14 DAL2455 - Jul 14, 15:55 UTCJul 14, 18:30 UTC2h 35m
2026-07-14 DAL2708 - Jul 14, 13:10 UTCJul 14, 14:35 UTC1h 25m
2026-07-14 DAL1614 SLC → ONT Jul 14, 05:15 UTCJul 14, 06:40 UTC1h 25m
2026-07-14 DAL1299 - Jul 14, 01:00 UTCJul 14, 03:35 UTC2h 35m
2026-07-13 DAL1299 - Jul 13, 21:15 UTCJul 13, 23:55 UTC2h 40m
2026-07-11 DAL1623 DEN → SLC Jul 11, 22:25 UTCJul 11, 23:30 UTC1h 5m
2026-07-11 DAL1623 SLC → DEN Jul 11, 19:35 UTCJul 11, 21:00 UTC1h 25m
2026-07-11 DAL1367 - Jul 11, 16:40 UTCJul 11, 17:55 UTC1h 15m
2026-07-11 DAL1367 SLC → SMF Jul 11, 14:15 UTCJul 11, 15:40 UTC1h 25m
2026-07-11 DAL1723 - Jul 11, 05:05 UTCJul 11, 12:50 UTC7h 45m
2026-07-10 DAL2903 - Jul 10, 23:05 UTCJul 11, 01:20 UTC2h 15m
2026-07-10 DAL2903 - Jul 10, 20:00 UTCJul 10, 21:50 UTC1h 50m
2026-07-10 DAL9969 SEA → SLC Jul 10, 16:20 UTCJul 10, 17:50 UTC1h 30m
2026-07-10 DAL1731 DEN → SEA Jul 10, 12:40 UTCJul 10, 15:05 UTC2h 25m
2026-07-10 DAL1731 DEN → SEA Jul 10, 12:40 UTCJul 10, 15:03 UTC2h 23m
2026-07-10 DAL2851 SEA → DEN Jul 10, 03:20 UTCJul 10, 05:30 UTC2h 10m
2026-07-10 DAL2851 SEA → DEN Jul 10, 03:20 UTCJul 10, 05:29 UTC2h 9m
2026-07-09 DAL2449 PHX → SEA Jul 9, 23:25 UTCJul 10, 01:55 UTC2h 30m
2026-07-09 DAL2449 - Jul 9, 19:00 UTCJul 9, 21:20 UTC2h 20m
2026-07-09 DAL9966 SLC → SEA Jul 9, 15:15 UTCJul 9, 17:05 UTC1h 50m
2026-07-08 DAL2363 - Jul 8, 19:20 UTCJul 8, 22:15 UTC2h 55m
2026-07-08 DAL2666 SLC → STL Jul 8, 03:00 UTCJul 8, 05:35 UTC2h 35m
2026-07-08 DAL1277 - Jul 8, 00:10 UTCJul 8, 01:30 UTC1h 20m
2026-07-08 DAL1277 SNA → SLC Jul 8, 00:07 UTCJul 8, 01:32 UTC1h 25m
2026-07-07 DAL1277 - Jul 7, 21:30 UTCJul 7, 22:55 UTC1h 25m
2026-07-01 DAL2685 BOS → DTW Jul 1, 23:35 UTCJul 2, 02:00 UTC2h 25m
2026-07-01 DAL2680 - Jul 1, 19:40 UTCJul 1, 22:05 UTC2h 25m
2026-07-01 DAL1367 - Jul 1, 16:50 UTCJul 1, 18:05 UTC1h 15m
2026-07-01 DAL1367 - Jul 1, 14:20 UTCJul 1, 15:35 UTC1h 15m
2026-06-29 DAL1159 - Jun 29, 22:15 UTCJun 29, 23:34 UTC1h 20m
2026-06-29 DAL2081 MSP → SNA Jun 29, 16:15 UTCJun 29, 19:54 UTC3h 40m
2026-06-29 DAL2390 VPS → ATL Jun 29, 11:45 UTCJun 29, 14:09 UTC2h 25m
2026-06-28 DAL1035 - Jun 28, 22:20 UTCJun 29, 00:20 UTC2h 0m
2026-06-28 DAL1035 - Jun 28, 18:10 UTCJun 28, 20:04 UTC1h 55m
2026-06-28 DAL454 LAX → BOS Jun 28, 13:34 UTCJun 28, 16:35 UTC3h 0m
2026-06-27 DAL496 JFK → DFW Jun 27, 22:20 UTCJun 28, 01:40 UTC3h 20m
2026-06-27 DAL2661 - Jun 27, 18:04 UTCJun 27, 20:24 UTC2h 20m
2026-06-27 DAL2772 - Jun 27, 14:54 UTCJun 27, 16:35 UTC1h 40m
2026-06-27 DAL2772 MSP → CMH Jun 27, 12:15 UTCJun 27, 13:40 UTC1h 25m
2026-06-26 DAL2327 - Jun 26, 21:45 UTCJun 27, 00:25 UTC2h 40m
2026-06-26 DAL2327 - Jun 26, 18:20 UTCJun 26, 20:24 UTC2h 5m
2026-06-26 DAL2622 CVG → ATL Jun 26, 14:19 UTCJun 26, 16:49 UTC2h 30m
2026-06-25 DAL762 - Jun 25, 23:34 UTCJun 26, 02:30 UTC2h 55m
2026-06-22 DAL1555 BOS → MCO Jun 22, 23:20 UTCJun 23, 00:30 UTC1h 10m
2026-06-22 DAL1555 BOS → MCO Jun 22, 21:10 UTCJun 22, 22:05 UTC55m
2026-06-22 DAL2550 - Jun 22, 18:15 UTCJun 22, 19:44 UTC1h 30m
2026-06-22 DAL2550 CMH → MSP Jun 22, 18:10 UTCJun 22, 19:42 UTC1h 32m
2026-06-22 DAL2550 MSP → CMH Jun 22, 15:29 UTCJun 22, 17:00 UTC1h 30m
2026-06-22 DAL1050 - Jun 22, 11:44 UTCJun 22, 13:59 UTC2h 15m

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 N119DU page for operator, model, and routing details .

Mode-S A04E00 frequently asked

What is Mode-S code A04E00?
A04E00 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N119DU.
Where is Mode-S A04E00 registered?
Mode-S code A04E00 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 A04E00 broadcasting right now?
Yes. Mode-S A04E00 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A04E00, octal 50047000, decimal 10,505,728.
What flights does A04E00 operate?
Mode-S A04E00 has broadcast 20 distinct callsigns, including DAL2985, DAL2533, DAL1641, DAL1367, DAL724.