Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3CD58

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N344NB · AIRBUS A-319 · operated by DELTA AIR LINES INC

Hex
A3CD58
Octal
50746530
Decimal
10,734,936
Country
US
Tail
N344NB
Type
A319
No current signal · last broadcast 13d ago
Flights observed
413
Distinct callsigns
20
Country
US
Last broadcast
13d ago

Last known position

Most recent position reported by Mode-S A3CD58.

Country allocation

The ICAO 24-bit address A3CD58 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
DAL1638 - 22 2026-06-23
DAL2320 - 18 2026-06-23
DAL1003 Delta Air Lines 12 2026-05-19
DAL2443 - 11 2026-06-23
DAL616 - 10 2026-06-22
DAL1316 Delta Air Lines 10 2026-06-22
DAL617 - 9 2026-06-22
DAL2729 - 9 2026-06-29
DAL1472 Delta Air Lines 9 2026-05-14
DAL950 - 7 2026-06-30
DAL487 Delta Air Lines 6 2026-06-27
DAL1416 Delta Air Lines 6 2026-05-03
DAL1077 - 6 2026-06-28
DAL559 - 5 2026-06-28
DAL2983 Delta Air Lines 5 2026-05-21
DAL2766 - 5 2026-06-25
DAL2529 - 5 2026-06-28
DAL2459 - 5 2026-06-26
DAL611 Delta Air Lines 4 2026-04-15
DAL3113 Delta Air Lines 4 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-30 DAL9960 - Jun 30, 12:10 UTCJun 30, 15:25 UTC3h 15m
2026-06-30 DAL950 DCA → ATL Jun 30, 00:00 UTCJun 30, 01:14 UTC1h 15m
2026-06-29 DAL950 ATL → DCA Jun 29, 20:49 UTCJun 29, 22:19 UTC1h 30m
2026-06-29 DAL1671 - Jun 29, 17:34 UTCJun 29, 18:55 UTC1h 20m
2026-06-29 DAL1671 - Jun 29, 14:25 UTCJun 29, 15:49 UTC1h 25m
2026-06-29 DAL330 DCA → ATL Jun 29, 11:14 UTCJun 29, 12:34 UTC1h 20m
2026-06-29 DAL2729 MCO → DCA Jun 29, 01:24 UTCJun 29, 03:06 UTC1h 42m
2026-06-29 DAL2729 MCO → DCA Jun 29, 01:25 UTCJun 29, 03:10 UTC1h 45m
2026-06-28 DAL2529 AUS → MCO Jun 28, 21:10 UTCJun 28, 23:29 UTC2h 19m
2026-06-28 DAL2529 AUS → MCO Jun 28, 21:14 UTCJun 28, 23:29 UTC2h 15m
2026-06-28 DAL1012 FLL → LGA Jun 28, 16:55 UTCJun 28, 19:25 UTC2h 30m
2026-06-28 DAL1012 FLL → LGA Jun 28, 16:53 UTCJun 28, 19:25 UTC2h 32m
2026-06-28 DAL559 AUS → DTW Jun 28, 13:04 UTCJun 28, 15:29 UTC2h 25m
2026-06-28 DAL1077 SFO → AUS Jun 28, 01:19 UTCJun 28, 04:20 UTC3h 0m
2026-06-27 DAL1077 AUS → SFO Jun 27, 20:19 UTCJun 27, 23:45 UTC3h 25m
2026-06-27 DAL487 JFK → SDQ Jun 27, 16:49 UTCJun 27, 18:45 UTC1h 55m
2026-06-27 DAL487 JFK → SDQ Jun 27, 13:24 UTCJun 27, 15:30 UTC2h 5m
2026-06-26 DAL622 - Jun 26, 23:00 UTCJun 27, 01:35 UTC2h 35m
2026-06-26 DAL2148 DEN → LAX Jun 26, 18:54 UTCJun 26, 20:55 UTC2h 0m
2026-06-26 DAL2148 - Jun 26, 15:10 UTCJun 26, 16:54 UTC1h 45m
2026-06-26 DAL2459 PDX → LAX Jun 26, 03:39 UTCJun 26, 05:39 UTC2h 0m
2026-06-26 DAL2459 PDX → LAX Jun 26, 03:37 UTCJun 26, 05:30 UTC1h 53m
2026-06-26 DAL2459 - Jun 26, 00:10 UTCJun 26, 02:05 UTC1h 55m
2026-06-25 DAL2766 - Jun 25, 20:59 UTCJun 25, 22:49 UTC1h 50m
2026-06-25 DAL2766 - Jun 25, 17:54 UTCJun 25, 19:44 UTC1h 50m
2026-06-25 DAL2337 - Jun 25, 12:44 UTCJun 25, 15:54 UTC3h 10m
2026-06-25 DAL2337 MCI → LAX Jun 25, 12:40 UTCJun 25, 15:38 UTC2h 58m
2026-06-25 DAL2243 - Jun 25, 01:59 UTCJun 25, 04:40 UTC2h 40m
2026-06-24 DAL1517 - Jun 24, 21:44 UTCJun 25, 00:49 UTC3h 5m
2026-06-24 DAL1517 MCI → LAX Jun 24, 21:43 UTCJun 25, 00:43 UTC3h 0m
2026-06-24 DAL1517 - Jun 24, 18:05 UTCJun 24, 20:35 UTC2h 30m
2026-06-24 DAL1216 - Jun 24, 12:20 UTCJun 24, 15:14 UTC2h 55m
2026-06-24 DAL1633 - Jun 24, 01:14 UTCJun 24, 03:35 UTC2h 20m
2026-06-23 DAL2443 JFK → DTW Jun 23, 22:40 UTCJun 24, 00:05 UTC1h 25m
2026-06-23 DAL2443 JFK → DTW Jun 23, 22:39 UTCJun 23, 23:58 UTC1h 19m
2026-06-23 DAL2320 RSW → JFK Jun 23, 18:25 UTCJun 23, 20:49 UTC2h 25m
2026-06-23 DAL2320 JFK → RSW Jun 23, 12:35 UTCJun 23, 15:09 UTC2h 35m
2026-06-23 DAL1638 - Jun 23, 00:15 UTCJun 23, 03:49 UTC3h 35m
2026-06-22 DAL1638 - Jun 22, 20:34 UTCJun 22, 22:54 UTC2h 20m
2026-06-22 DAL616 - Jun 22, 17:20 UTCJun 22, 18:04 UTC45m
2026-06-22 DAL617 - Jun 22, 12:44 UTCJun 22, 13:10 UTC25m
2026-06-22 DAL1316 LGA → RSW Jun 22, 00:29 UTCJun 22, 01:40 UTC1h 10m
2026-06-21 DAL2443 - Jun 21, 21:14 UTCJun 21, 22:40 UTC1h 25m
2026-06-21 DAL2320 - Jun 21, 16:34 UTCJun 21, 18:00 UTC1h 25m
2026-06-21 DAL2320 RSW → JFK Jun 21, 16:31 UTCJun 21, 18:53 UTC2h 22m
2026-06-21 DAL2320 - Jun 21, 12:35 UTCJun 21, 14:50 UTC2h 15m
2026-06-21 DAL2320 - Jun 21, 12:19 UTCJun 21, 12:24 UTC5m
2026-06-20 DAL2726 IAH → LGA Jun 20, 14:35 UTCJun 20, 23:59 UTC9h 25m
2026-06-20 DAL1638 - Jun 20, 03:19 UTCJun 20, 05:24 UTC2h 5m
2026-06-20 DAL1638 PBI → JFK Jun 20, 03:18 UTCJun 20, 05:20 UTC2h 2m

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 N344NB page for operator, model, and routing details .

Mode-S A3CD58 frequently asked

What is Mode-S code A3CD58?
A3CD58 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N344NB.
Where is Mode-S A3CD58 registered?
Mode-S code A3CD58 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 A3CD58 broadcasting right now?
No active broadcast right now. Last signal was 13d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3CD58, octal 50746530, decimal 10,734,936.
What flights does A3CD58 operate?
Mode-S A3CD58 has broadcast 20 distinct callsigns, including DAL1638, DAL2320, DAL1003, DAL2443, DAL616.