Apparatus

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sensors Mode-S transponder

A3DC34

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N348NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A3DC34
Octal
50756064
Decimal
10,738,740
Country
US
Tail
N348NB
Type
A319
No current signal · last broadcast Jul 21, 00:10 UTC
Flights observed
524
Distinct callsigns
20
Country
US
Last broadcast
Jul 21, 00:10 UTC

Last known position

Most recent position reported by Mode-S A3DC34.

Country allocation

The ICAO 24-bit address A3DC34 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
DAL1558 - 15 2026-07-16
DAL2476 - 9 2026-06-26
DAL2320 - 9 2026-07-06
DAL611 Delta Air Lines 8 2026-05-28
DAL2682 - 8 2026-06-23
DAL1557 - 8 2026-07-16
DAL1454 - 8 2026-06-26
DAL646 - 7 2026-06-28
DAL381 - 7 2026-06-27
DAL2007 Delta Air Lines 7 2026-05-31
DAL946 - 6 2026-07-12
DAL645 - 6 2026-06-28
DAL2746 - 6 2026-07-17
DAL2574 Delta Air Lines 6 2026-04-30
DAL2168 Delta Air Lines 6 2026-05-21
DAL1444 Delta Air Lines 6 2026-05-21
DAL2864 Delta Air Lines 5 2026-05-24
DAL2785 - 5 2026-06-25
DAL2729 - 5 2026-07-14
DAL2576 Delta Air Lines 5 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 DAL1275 TPA → RDU Jul 20, 22:45 UTCJul 21, 00:10 UTC1h 24m
2026-07-20 DAL1018 MSY → ATL Jul 20, 19:45 UTCJul 20, 21:30 UTC1h 45m
2026-07-20 DAL1038 - Jul 20, 16:10 UTCJul 20, 17:45 UTC1h 35m
2026-07-20 DAL1279 BOS → PBI Jul 20, 13:20 UTCJul 20, 14:50 UTC1h 30m
2026-07-20 DAL1279 BOS → PBI Jul 20, 10:35 UTCJul 20, 12:00 UTC1h 25m
2026-07-20 DAL2992 - Jul 20, 01:25 UTCJul 20, 03:05 UTC1h 40m
2026-07-20 DAL2992 MIA → RDU Jul 20, 01:22 UTCJul 20, 03:00 UTC1h 38m
2026-07-19 DAL2576 TPA → BOS Jul 19, 19:35 UTCJul 19, 21:50 UTC2h 15m
2026-07-19 DAL2888 - Jul 19, 16:00 UTCJul 19, 18:00 UTC2h 0m
2026-07-19 DAL2888 MIA → DCA Jul 19, 15:57 UTCJul 19, 17:54 UTC1h 57m
2026-07-18 DAL2576 TPA → BOS Jul 18, 23:10 UTCJul 19, 01:30 UTC2h 20m
2026-07-18 DAL2576 TPA → BOS Jul 18, 23:10 UTCJul 19, 01:19 UTC2h 9m
2026-07-18 DAL2983 MSP → DCA Jul 18, 15:30 UTCJul 18, 17:45 UTC2h 15m
2026-07-18 DAL2834 BOS → LGA Jul 18, 11:45 UTCJul 18, 13:50 UTC2h 5m
2026-07-18 DAL1689 - Jul 18, 01:54 UTCJul 18, 02:40 UTC45m
2026-07-17 DAL1407 - Jul 17, 23:00 UTCJul 18, 00:15 UTC1h 15m
2026-07-17 DAL1407 - Jul 17, 20:25 UTCJul 17, 21:34 UTC1h 10m
2026-07-17 DAL2746 DFW → DTW Jul 17, 16:49 UTCJul 17, 19:00 UTC2h 10m
2026-07-17 DAL2746 - Jul 17, 13:20 UTCJul 17, 15:29 UTC2h 10m
2026-07-17 DAL2567 EWR → DTW Jul 17, 01:03 UTCJul 17, 02:25 UTC1h 22m
2026-07-17 DAL2567 EWR → DTW Jul 17, 01:05 UTCJul 17, 02:25 UTC1h 20m
2026-07-16 DAL2567 - Jul 16, 22:00 UTCJul 16, 23:10 UTC1h 10m
2026-07-16 DAL1557 - Jul 16, 19:20 UTCJul 16, 20:29 UTC1h 10m
2026-07-16 DAL1557 BNA → DTW Jul 16, 19:14 UTCJul 16, 20:25 UTC1h 11m
2026-07-16 DAL1557 - Jul 16, 16:35 UTCJul 16, 17:45 UTC1h 10m
2026-07-16 DAL1558 DCA → DTW Jul 16, 14:10 UTCJul 16, 15:14 UTC1h 5m
2026-07-16 DAL1558 DCA → DTW Jul 16, 14:09 UTCJul 16, 15:14 UTC1h 5m
2026-07-16 DAL1558 DTW → DCA Jul 16, 11:15 UTCJul 16, 12:09 UTC55m
2026-07-16 DAL1096 DEN → DTW Jul 16, 07:05 UTCJul 16, 09:20 UTC2h 15m
2026-07-16 DAL1729 LAX → DEN Jul 16, 03:35 UTCJul 16, 05:30 UTC1h 55m
2026-07-16 DAL1729 LAX → DEN Jul 16, 03:34 UTCJul 16, 05:31 UTC1h 57m
2026-07-16 DAL1438 SJC → LAX Jul 16, 01:20 UTCJul 16, 02:25 UTC1h 5m
2026-07-16 DAL1438 SJC → LAX Jul 16, 01:16 UTCJul 16, 02:08 UTC52m
2026-07-15 DAL1438 - Jul 15, 23:10 UTCJul 16, 00:00 UTC50m
2026-07-15 DAL1438 LAX → SJC Jul 15, 23:08 UTCJul 15, 23:53 UTC45m
2026-07-15 DAL521 DFW → LAX Jul 15, 19:05 UTCJul 15, 21:45 UTC2h 40m
2026-07-15 DAL521 - Jul 15, 14:50 UTCJul 15, 17:35 UTC2h 45m
2026-07-15 DAL1584 - Jul 15, 01:35 UTCJul 15, 04:15 UTC2h 40m
2026-07-14 DAL1612 - Jul 14, 20:50 UTCJul 14, 23:25 UTC2h 34m
2026-07-14 DAL788 - Jul 14, 16:30 UTCJul 14, 19:05 UTC2h 35m
2026-07-14 DAL788 - Jul 14, 12:40 UTCJul 14, 15:10 UTC2h 30m
2026-07-14 DAL2869 - Jul 14, 10:05 UTCJul 14, 11:00 UTC55m
2026-07-14 DAL2869 DCA → DTW Jul 14, 10:02 UTCJul 14, 11:02 UTC1h 0m
2026-07-14 DAL2729 MCO → DCA Jul 14, 03:15 UTCJul 14, 05:05 UTC1h 50m
2026-07-13 DAL2529 AUS → MCO Jul 13, 23:25 UTCJul 14, 01:50 UTC2h 25m
2026-07-13 DAL1012 - Jul 13, 17:15 UTCJul 13, 20:00 UTC2h 45m
2026-07-13 DAL559 AUS → DTW Jul 13, 13:10 UTCJul 13, 15:45 UTC2h 35m
2026-07-12 DAL622 - Jul 12, 23:05 UTCJul 13, 01:45 UTC2h 40m
2026-07-12 DAL946 - Jul 12, 18:40 UTCJul 12, 21:15 UTC2h 35m
2026-07-12 DAL946 LAX → AUS Jul 12, 14:55 UTCJul 12, 17:30 UTC2h 35m

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 N348NB page for operator, model, and routing details .

Mode-S A3DC34 frequently asked

What is Mode-S code A3DC34?
A3DC34 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N348NB.
Where is Mode-S A3DC34 registered?
Mode-S code A3DC34 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 A3DC34 broadcasting right now?
No active broadcast right now. Last signal was Jul 21, 00:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3DC34, octal 50756064, decimal 10,738,740.
What flights does A3DC34 operate?
Mode-S A3DC34 has broadcast 20 distinct callsigns, including DAL1558, DAL2476, DAL2320, DAL611, DAL2682.