Apparatus

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sensors Mode-S transponder

A35D79

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N316DU · AIRBUS A220-300 · operated by DELTA AIR LINES INC

Hex
A35D79
Octal
50656571
Decimal
10,706,297
Country
US
Tail
N316DU
Type
BCS3
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
409
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S A35D79.

Country allocation

The ICAO 24-bit address A35D79 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
DAL675 - 13 2026-07-01
DAL2679 Delta Air Lines 13 2026-07-23
DAL2140 - 11 2026-07-09
DAL2819 Delta Air Lines 10 2026-05-31
DAL2488 Delta Air Lines 9 2026-06-04
DAL2677 - 8 2026-07-02
DAL2461 - 8 2026-07-15
DAL2310 - 8 2026-07-16
DAL475 - 7 2026-07-19
DAL2917 - 7 2026-07-16
DAL2673 Delta Air Lines 7 2026-05-18
DAL2521 Delta Air Lines 7 2026-06-04
DAL2405 - 7 2026-07-12
DAL1322 - 7 2026-06-25
DAL2930 Delta Air Lines 6 2026-06-01
DAL2808 Delta Air Lines 6 2026-06-04
DAL2445 Delta Air Lines 6 2026-06-26
DAL2251 Delta Air Lines 6 2026-07-23
DAL2109 Delta Air Lines 6 2026-06-06
DAL1394 - 6 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL816 LAX → AUS Jul 26, 19:20 UTCJul 26, 22:15 UTC2h 55m
2026-07-26 DAL816 LAX → AUS Jul 26, 13:20 UTCJul 26, 17:00 UTC3h 40m
2026-07-25 DAL2689 RDU → DTW Jul 25, 21:45 UTCJul 25, 23:20 UTC1h 35m
2026-07-25 DAL2689 RDU → DTW Jul 25, 18:15 UTCJul 25, 20:05 UTC1h 50m
2026-07-25 DAL1022 ATL → DTW Jul 25, 15:15 UTCJul 25, 16:35 UTC1h 20m
2026-07-25 DAL9965 ATL → DTW Jul 25, 11:55 UTCJul 25, 13:30 UTC1h 35m
2026-07-25 DAL9965 ATL → DTW Jul 25, 04:44 UTCJul 25, 06:59 UTC2h 15m
2026-07-25 DAL9965 ATL → DTW Jul 25, 04:45 UTCJul 25, 07:05 UTC2h 20m
2026-07-24 DAL2565 LGA → ORD Jul 24, 23:25 UTCJul 25, 01:45 UTC2h 20m
2026-07-24 DAL2565 LGA → ORD Jul 24, 23:20 UTCJul 25, 01:35 UTC2h 15m
2026-07-24 DAL2565 LGA → ORD Jul 24, 20:00 UTCJul 24, 22:05 UTC2h 5m
2026-07-23 DAL2679 ATL → BDL Jul 23, 19:55 UTCJul 23, 22:35 UTC2h 40m
2026-07-23 DAL2679 ATL → BDL Jul 23, 16:30 UTCJul 23, 18:25 UTC1h 55m
2026-07-23 DAL1554 - Jul 23, 13:40 UTCJul 23, 14:40 UTC1h 0m
2026-07-23 DAL2251 DTW → BDL Jul 23, 10:15 UTCJul 23, 12:15 UTC2h 0m
2026-07-23 DAL2068 RDU → BOS Jul 23, 00:10 UTCJul 23, 02:15 UTC2h 5m
2026-07-23 DAL2068 RDU → BOS Jul 23, 00:05 UTCJul 23, 02:21 UTC2h 16m
2026-07-22 DAL2068 RDU → BOS Jul 22, 19:55 UTCJul 22, 22:40 UTC2h 45m
2026-07-21 DAL2943 - Jul 21, 00:10 UTCJul 21, 03:40 UTC3h 30m
2026-07-20 DAL2644 - Jul 20, 20:05 UTCJul 20, 22:30 UTC2h 25m
2026-07-20 DAL2185 ATL → GSO Jul 20, 15:30 UTCJul 20, 18:50 UTC3h 20m
2026-07-20 DAL2107 SLC → AUS Jul 20, 00:05 UTCJul 20, 03:15 UTC3h 10m
2026-07-19 DAL475 - Jul 19, 21:15 UTCJul 19, 22:45 UTC1h 30m
2026-07-19 DAL475 - Jul 19, 20:05 UTCJul 19, 21:10 UTC1h 5m
2026-07-19 DAL475 ILM → MSP Jul 19, 19:59 UTCJul 19, 22:38 UTC2h 39m
2026-07-19 DAL475 - Jul 19, 15:55 UTCJul 19, 18:00 UTC2h 5m
2026-07-19 DAL2717 ATL → LGA Jul 19, 11:15 UTCJul 19, 13:40 UTC2h 25m
2026-07-18 DAL2773 EWR → ATL Jul 18, 23:50 UTCJul 19, 02:10 UTC2h 20m
2026-07-18 DAL2958 - Jul 18, 16:20 UTCJul 18, 18:35 UTC2h 15m
2026-07-18 DAL2958 MSP → DCA Jul 18, 12:40 UTCJul 18, 14:35 UTC1h 55m
2026-07-18 DAL2679 ATL → BDL Jul 18, 03:15 UTCJul 18, 04:40 UTC1h 25m
2026-07-17 DAL2679 ATL → BDL Jul 17, 19:49 UTCJul 17, 22:15 UTC2h 25m
2026-07-17 DAL2679 ATL → BDL Jul 17, 16:24 UTCJul 17, 18:29 UTC2h 5m
2026-07-17 DAL1554 - Jul 17, 14:00 UTCJul 17, 15:00 UTC1h 0m
2026-07-17 DAL2251 LGA → ORD Jul 17, 10:15 UTCJul 17, 12:19 UTC2h 5m
2026-07-16 DAL2310 RSW → LGA Jul 16, 23:40 UTCJul 17, 02:05 UTC2h 25m
2026-07-16 DAL2310 LGA → RSW Jul 16, 19:25 UTCJul 16, 21:55 UTC2h 30m
2026-07-16 DAL2917 - Jul 16, 15:49 UTCJul 16, 17:25 UTC1h 35m
2026-07-16 DAL2917 - Jul 16, 11:54 UTCJul 16, 13:54 UTC2h 0m
2026-07-16 DAL2310 RSW → LGA Jul 16, 02:00 UTCJul 16, 04:30 UTC2h 30m
2026-07-15 DAL2310 LGA → RSW Jul 15, 22:15 UTCJul 16, 00:40 UTC2h 25m
2026-07-15 DAL2461 MSY → LGA Jul 15, 16:51 UTCJul 15, 19:29 UTC2h 38m
2026-07-14 DAL2461 MSY → LGA Jul 14, 17:55 UTCJul 14, 20:30 UTC2h 35m
2026-07-14 DAL1368 JFK → MSY Jul 14, 14:10 UTCJul 14, 16:40 UTC2h 30m
2026-07-13 DAL1394 MSY → JFK Jul 13, 01:05 UTCJul 13, 03:40 UTC2h 35m
2026-07-12 DAL2405 LGA → MSY Jul 12, 21:00 UTCJul 12, 23:50 UTC2h 50m
2026-07-12 DAL2115 - Jul 12, 13:50 UTCJul 12, 14:50 UTC1h 0m
2026-07-11 DAL2115 - Jul 11, 21:05 UTCJul 11, 21:50 UTC45m
2026-07-11 DAL2461 MSY → LGA Jul 11, 17:05 UTCJul 11, 19:55 UTC2h 50m
2026-07-11 DAL1368 JFK → MSY Jul 11, 13:00 UTCJul 11, 15:40 UTC2h 40m

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 N316DU page for operator, model, and routing details .

Mode-S A35D79 frequently asked

What is Mode-S code A35D79?
A35D79 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N316DU.
Where is Mode-S A35D79 registered?
Mode-S code A35D79 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 A35D79 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A35D79, octal 50656571, decimal 10,706,297.
What flights does A35D79 operate?
Mode-S A35D79 has broadcast 20 distinct callsigns, including DAL675, DAL2679, DAL2140, DAL2819, DAL2488.