Apparatus

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sensors Mode-S transponder

A359C2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N315DU · AIRBUS A220-300 · operated by DELTA AIR LINES INC

Hex
A359C2
Octal
50654702
Decimal
10,705,346
Country
US
Tail
N315DU
Type
BCS3
No current signal · last broadcast Jul 26, 22:10 UTC
Flights observed
444
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:10 UTC

Last known position

Most recent position reported by Mode-S A359C2.

Country allocation

The ICAO 24-bit address A359C2 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
DAL952 Delta Air Lines 8 2026-07-21
DAL2679 - 8 2026-07-08
DAL2442 Delta Air Lines 8 2026-04-17
DAL1390 - 8 2026-07-14
DAL1358 Delta Air Lines 8 2026-07-26
DAL1061 - 8 2026-06-18
DAL831 Delta Air Lines 7 2026-07-23
DAL750 Delta Air Lines 7 2026-05-05
DAL2910 Delta Air Lines 7 2026-05-16
DAL2635 - 7 2026-06-15
DAL2572 Delta Air Lines 7 2026-05-03
DAL2508 Delta Air Lines 7 2026-05-02
DAL2318 Delta Air Lines 7 2026-05-14
DAL1731 Delta Air Lines 7 2026-07-25
DAL739 - 6 2026-06-18
DAL572 - 6 2026-07-13
DAL2721 - 6 2026-06-15
DAL2412 - 6 2026-06-19
DAL1711 - 6 2026-06-30
DAL1684 Delta Air Lines 6 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1358 MCO → LGA Jul 26, 19:15 UTCJul 26, 21:50 UTC2h 35m
2026-07-26 DAL1358 MCO → LGA Jul 26, 15:35 UTCJul 26, 17:45 UTC2h 10m
2026-07-26 DAL925 DFW → LGA Jul 26, 10:25 UTCJul 26, 13:30 UTC3h 5m
2026-07-26 DAL936 JFK → DEN Jul 26, 04:40 UTCJul 26, 07:40 UTC3h 1m
2026-07-25 DAL373 PDX → ATL Jul 25, 22:50 UTCJul 26, 03:15 UTC4h 25m
2026-07-25 DAL1710 JFK → SAT Jul 25, 17:50 UTCJul 25, 21:30 UTC3h 40m
2026-07-25 DAL1731 DEN → SEA Jul 25, 13:50 UTCJul 25, 16:10 UTC2h 20m
2026-07-25 DAL1731 DEN → SEA Jul 25, 13:49 UTCJul 25, 16:10 UTC2h 21m
2026-07-25 DAL2851 YUL → ATL Jul 25, 03:15 UTCJul 25, 05:25 UTC2h 10m
2026-07-24 DAL408 CVG → SLC Jul 24, 22:00 UTCJul 25, 01:55 UTC3h 55m
2026-07-24 DAL803 LAX → SEA Jul 24, 17:05 UTCJul 24, 20:30 UTC3h 25m
2026-07-24 DAL1731 DEN → SEA Jul 24, 12:50 UTCJul 24, 15:15 UTC2h 25m
2026-07-24 DAL1731 DEN → SEA Jul 24, 12:47 UTCJul 24, 15:16 UTC2h 29m
2026-07-24 DAL2851 YUL → ATL Jul 24, 03:20 UTCJul 24, 05:30 UTC2h 10m
2026-07-23 DAL1358 MCO → LGA Jul 23, 19:55 UTCJul 23, 22:20 UTC2h 25m
2026-07-23 DAL1358 MCO → LGA Jul 23, 16:35 UTCJul 23, 18:40 UTC2h 5m
2026-07-23 DAL2408 MSP → MCI Jul 23, 11:54 UTCJul 23, 15:05 UTC3h 11m
2026-07-23 DAL2408 MSP → MCI Jul 23, 11:55 UTCJul 23, 15:10 UTC3h 15m
2026-07-23 DAL2186 SLC → PHL Jul 23, 06:15 UTCJul 23, 09:40 UTC3h 25m
2026-07-23 DAL2186 SLC → PHL Jul 23, 06:15 UTCJul 23, 09:34 UTC3h 19m
2026-07-23 DAL831 SEA → AUS Jul 23, 00:30 UTCJul 23, 04:20 UTC3h 50m
2026-07-22 DAL831 SEA → AUS Jul 22, 18:10 UTCJul 22, 21:55 UTC3h 45m
2026-07-22 DAL831 SEA → AUS Jul 22, 18:06 UTCJul 22, 21:55 UTC3h 49m
2026-07-22 DAL372 BNA → SEA Jul 22, 12:10 UTCJul 22, 16:20 UTC4h 10m
2026-07-22 DAL815 LAS → BOS Jul 22, 01:35 UTCJul 22, 05:10 UTC3h 35m
2026-07-21 DAL952 BOS → CVG Jul 21, 21:35 UTCJul 21, 23:45 UTC2h 10m
2026-07-21 DAL952 BOS → CVG Jul 21, 21:31 UTCJul 21, 23:41 UTC2h 10m
2026-07-21 DAL952 BOS → CVG Jul 21, 17:30 UTCJul 21, 19:50 UTC2h 20m
2026-07-21 DAL2105 DTW → GRR Jul 21, 12:05 UTCJul 21, 15:25 UTC3h 20m
2026-07-21 DAL2256 LGA → MSY Jul 21, 01:05 UTCJul 21, 04:00 UTC2h 55m
2026-07-20 DAL1412 MSP → SLC Jul 20, 22:15 UTCJul 20, 23:40 UTC1h 25m
2026-07-20 DAL1412 MSP → SLC Jul 20, 18:15 UTCJul 20, 20:05 UTC1h 50m
2026-07-20 DAL804 MCI → LGA Jul 20, 12:00 UTCJul 20, 15:25 UTC3h 25m
2026-07-20 DAL870 JFK → LAS Jul 20, 01:01 UTCJul 20, 04:24 UTC3h 23m
2026-07-20 DAL870 JFK → LAS Jul 20, 01:05 UTCJul 20, 04:20 UTC3h 15m
2026-07-19 DAL952 - Jul 19, 21:30 UTCJul 19, 23:40 UTC2h 10m
2026-07-19 DAL952 SNA → SEA Jul 19, 21:27 UTCJul 19, 23:35 UTC2h 8m
2026-07-19 DAL952 - Jul 19, 17:20 UTCJul 19, 19:45 UTC2h 25m
2026-07-19 DAL2105 DTW → GRR Jul 19, 12:05 UTCJul 19, 15:35 UTC3h 30m
2026-07-18 DAL9979 DFW → MCI Jul 18, 21:28 UTCJul 18, 22:36 UTC1h 8m
2026-07-18 DAL9979 - Jul 18, 21:30 UTCJul 18, 22:40 UTC1h 10m
2026-07-18 DAL873 TPA → ATL Jul 18, 13:55 UTCJul 18, 17:20 UTC3h 25m
2026-07-15 DAL2252 - Jul 15, 14:35 UTCJul 15, 16:15 UTC1h 40m
2026-07-15 DAL1544 - Jul 15, 12:10 UTCJul 15, 13:05 UTC55m
2026-07-14 DAL2678 - Jul 14, 22:25 UTCJul 15, 00:45 UTC2h 19m
2026-07-14 DAL2099 LGA → IAH Jul 14, 18:06 UTCJul 14, 21:07 UTC3h 1m
2026-07-14 DAL2099 - Jul 14, 18:10 UTCJul 14, 21:10 UTC3h 0m
2026-07-14 DAL2194 - Jul 14, 15:15 UTCJul 14, 16:30 UTC1h 15m
2026-07-14 DAL2194 MYR → LGA Jul 14, 15:05 UTCJul 14, 16:25 UTC1h 20m
2026-07-14 DAL1390 - Jul 14, 12:25 UTCJul 14, 13:30 UTC1h 5m

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 N315DU page for operator, model, and routing details .

Mode-S A359C2 frequently asked

What is Mode-S code A359C2?
A359C2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N315DU.
Where is Mode-S A359C2 registered?
Mode-S code A359C2 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 A359C2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A359C2, octal 50654702, decimal 10,705,346.
What flights does A359C2 operate?
Mode-S A359C2 has broadcast 20 distinct callsigns, including DAL952, DAL2679, DAL2442, DAL1390, DAL1358.