Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A03F24

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N115DU · AIRBUS A220-100 · operated by BANK OF UTAH TRUSTEE

Hex
A03F24
Octal
50037444
Decimal
10,501,924
Country
US
Tail
N115DU
Type
BCS1
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
551
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S A03F24.

Country allocation

The ICAO 24-bit address A03F24 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
DAL2963 - 19 2026-07-12
DAL2057 - 18 2026-07-09
DAL2819 Delta Air Lines 13 2026-07-25
DAL1605 Delta Air Lines 12 2026-05-26
DAL2903 - 9 2026-06-26
DAL2446 Delta Air Lines 8 2026-07-24
DAL2006 - 8 2026-07-07
DAL1608 - 8 2026-07-10
DAL2969 Delta Air Lines 7 2026-05-26
DAL2866 Delta Air Lines 7 2026-06-29
DAL2847 - 7 2026-06-17
DAL2414 Delta Air Lines 7 2026-05-26
DAL2307 Delta Air Lines 7 2026-07-22
DAL2099 Delta Air Lines 7 2026-04-23
DAL1613 Delta Air Lines 7 2026-07-25
DAL1035 - 7 2026-06-27
DAL2772 - 6 2026-06-19
DAL2130 Delta Air Lines 6 2026-07-20
DAL2113 Delta Air Lines 6 2026-06-09
DAL1827 Delta Air Lines 6 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2061 CVG → ATL Jul 26, 21:20 UTCJul 26, 23:00 UTC1h 40m
2026-07-26 DAL2081 SAV → MSP Jul 26, 16:40 UTCJul 26, 19:55 UTC3h 15m
2026-07-25 DAL1613 TPA → ATL Jul 25, 21:10 UTCJul 25, 22:15 UTC1h 5m
2026-07-25 DAL1613 TPA → ATL Jul 25, 18:50 UTCJul 25, 19:45 UTC55m
2026-07-25 DAL845 SLC → JFK Jul 25, 15:55 UTCJul 25, 17:40 UTC1h 45m
2026-07-25 DAL845 SLC → JFK Jul 25, 15:51 UTCJul 25, 17:39 UTC1h 48m
2026-07-25 DAL2819 ALB → ATL Jul 25, 12:55 UTCJul 25, 14:30 UTC1h 35m
2026-07-24 DAL2819 ALB → ATL Jul 24, 19:25 UTCJul 24, 21:40 UTC2h 15m
2026-07-24 DAL2819 ALB → ATL Jul 24, 15:40 UTCJul 24, 17:40 UTC2h 0m
2026-07-24 DAL2446 JFK → JAX Jul 24, 13:40 UTCJul 24, 14:30 UTC50m
2026-07-24 DAL2446 JFK → JAX Jul 24, 13:29 UTCJul 24, 14:26 UTC57m
2026-07-22 DAL2307 ATL → GSO Jul 22, 23:31 UTCJul 23, 00:31 UTC1h 0m
2026-07-22 DAL2307 ATL → GSO Jul 22, 23:35 UTCJul 23, 00:25 UTC50m
2026-07-22 DAL2528 MSY → ATL Jul 22, 19:40 UTCJul 22, 22:00 UTC2h 20m
2026-07-22 DAL3123 DTW → MEM Jul 22, 16:10 UTCJul 22, 18:35 UTC2h 25m
2026-07-22 DAL3123 DTW → MEM Jul 22, 16:10 UTCJul 22, 18:30 UTC2h 20m
2026-07-22 DAL1314 SJC → SLC Jul 22, 13:10 UTCJul 22, 14:45 UTC1h 35m
2026-07-21 DAL2087 MSP → BIL Jul 21, 23:45 UTCJul 22, 03:40 UTC3h 55m
2026-07-21 DAL1613 - Jul 21, 21:05 UTCJul 21, 22:05 UTC1h 0m
2026-07-21 DAL1613 - Jul 21, 19:00 UTCJul 21, 20:00 UTC1h 0m
2026-07-21 DAL3188 BZN → SLC Jul 21, 16:20 UTCJul 21, 17:40 UTC1h 20m
2026-07-21 DAL3188 BZN → SLC Jul 21, 14:15 UTCJul 21, 15:20 UTC1h 5m
2026-07-21 DAL1635 LGA → MIA Jul 21, 11:30 UTCJul 21, 12:25 UTC55m
2026-07-21 DAL1657 BOS → DTW Jul 21, 02:55 UTCJul 21, 04:13 UTC1h 18m
2026-07-21 DAL1657 BOS → DTW Jul 21, 03:00 UTCJul 21, 04:10 UTC1h 10m
2026-07-20 DAL3185 ATL → CLT Jul 20, 22:50 UTCJul 21, 00:15 UTC1h 25m
2026-07-20 DAL3185 ATL → CLT Jul 20, 20:40 UTCJul 20, 21:45 UTC1h 5m
2026-07-20 DAL1827 BOS → NAS Jul 20, 15:30 UTCJul 20, 17:45 UTC2h 15m
2026-07-20 DAL1827 BOS → NAS Jul 20, 12:05 UTCJul 20, 14:05 UTC2h 0m
2026-07-20 DAL2130 BOS → RDU Jul 20, 02:20 UTCJul 20, 03:25 UTC1h 5m
2026-07-19 DAL2130 BOS → RDU Jul 19, 23:55 UTCJul 20, 00:55 UTC1h 0m
2026-07-19 DAL2819 - Jul 19, 19:45 UTCJul 19, 22:25 UTC2h 40m
2026-07-19 DAL2819 - Jul 19, 15:40 UTCJul 19, 17:40 UTC2h 0m
2026-07-19 DAL1641 EWR → MSP Jul 19, 11:10 UTCJul 19, 13:45 UTC2h 35m
2026-07-19 DAL1641 EWR → MSP Jul 19, 11:08 UTCJul 19, 13:39 UTC2h 31m
2026-07-18 DAL2864 MSP → EWR Jul 18, 12:15 UTCJul 18, 14:25 UTC2h 10m
2026-07-17 DAL2675 - Jul 17, 23:20 UTCJul 18, 01:45 UTC2h 25m
2026-07-17 DAL2675 SAT → MSP Jul 17, 23:17 UTCJul 18, 01:36 UTC2h 19m
2026-07-17 DAL2680 - Jul 17, 19:55 UTCJul 17, 22:25 UTC2h 30m
2026-07-17 DAL1302 - Jul 17, 17:25 UTCJul 17, 18:40 UTC1h 15m
2026-07-17 DAL1302 ONT → SLC Jul 17, 17:21 UTCJul 17, 18:41 UTC1h 20m
2026-07-17 DAL1302 SLC → ONT Jul 17, 14:39 UTCJul 17, 16:04 UTC1h 25m
2026-07-17 DAL2795 ATL → MCI Jul 17, 05:04 UTCJul 17, 12:50 UTC7h 45m
2026-07-17 DAL1024 GEG → SLC Jul 17, 02:15 UTCJul 17, 03:34 UTC1h 20m
2026-07-16 DAL1024 SLC → GEG Jul 16, 23:40 UTCJul 17, 00:55 UTC1h 15m
2026-07-16 DAL1254 ATL → PVD Jul 16, 20:45 UTCJul 16, 22:19 UTC1h 35m
2026-07-16 DAL1254 ATL → PVD Jul 16, 20:44 UTCJul 16, 22:12 UTC1h 28m
2026-07-16 DAL1254 ATL → PVD Jul 16, 17:49 UTCJul 16, 19:14 UTC1h 25m
2026-07-16 DAL1185 - Jul 16, 14:20 UTCJul 16, 15:45 UTC1h 25m
2026-07-16 DAL1304 - Jul 16, 03:15 UTCJul 16, 04:40 UTC1h 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 N115DU page for operator, model, and routing details .

Mode-S A03F24 frequently asked

What is Mode-S code A03F24?
A03F24 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N115DU.
Where is Mode-S A03F24 registered?
Mode-S code A03F24 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 A03F24 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A03F24, octal 50037444, decimal 10,501,924.
What flights does A03F24 operate?
Mode-S A03F24 has broadcast 20 distinct callsigns, including DAL2963, DAL2057, DAL2819, DAL1605, DAL2903.