Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A402DD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N358DN · AIRBUS A-321 · operated by DELTA AIR LINES INC

Hex
A402DD
Octal
51001335
Decimal
10,748,637
Country
US
Tail
N358DN
Type
A321
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
548
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S A402DD.

Country allocation

The ICAO 24-bit address A402DD 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
DAL2401 - 11 2026-07-12
DAL2397 Delta Air Lines 9 2026-06-06
DAL1332 - 9 2026-07-23
DAL665 Delta Air Lines 8 2026-05-30
DAL1579 - 8 2026-07-11
DAL2189 - 7 2026-07-18
DAL1594 Delta Air Lines 7 2026-07-24
DAL1527 - 7 2026-07-14
DAL1257 Delta Air Lines 7 2026-07-20
DAL1190 Delta Air Lines 7 2026-07-22
DAL893 - 6 2026-06-20
DAL839 Delta Air Lines 6 2026-07-26
DAL598 - 6 2026-06-23
DAL1395 - 6 2026-07-08
DAL641 - 5 2026-07-17
DAL2579 - 5 2026-07-12
DAL1497 Delta Air Lines 5 2026-07-23
DAL1266 - 5 2026-07-13
DAL1167 - 5 2026-06-28
DAL818 Delta Air Lines 4 2026-05-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL921 ATL → DFW Jul 26, 18:40 UTCJul 26, 20:20 UTC1h 40m
2026-07-26 DAL839 DFW → ATL Jul 26, 15:20 UTCJul 26, 17:05 UTC1h 45m
2026-07-26 DAL839 DFW → ATL Jul 26, 11:50 UTCJul 26, 13:35 UTC1h 45m
2026-07-25 DAL374 SFO → BOS Jul 25, 23:50 UTCJul 26, 01:40 UTC1h 50m
2026-07-25 DAL374 SFO → BOS Jul 25, 20:25 UTCJul 25, 22:10 UTC1h 45m
2026-07-25 DAL1153 BOS → DFW Jul 25, 17:30 UTCJul 25, 18:55 UTC1h 25m
2026-07-25 DAL1153 BOS → DFW Jul 25, 14:40 UTCJul 25, 16:00 UTC1h 20m
2026-07-25 DAL1673 MIA → BOS Jul 25, 11:25 UTCJul 25, 13:10 UTC1h 45m
2026-07-25 DAL2498 LGA → DTW Jul 25, 00:35 UTCJul 25, 02:25 UTC1h 50m
2026-07-24 DAL2312 ATL → BDL Jul 24, 21:15 UTCJul 24, 22:55 UTC1h 40m
2026-07-24 DAL2312 ATL → BDL Jul 24, 17:10 UTCJul 24, 19:05 UTC1h 55m
2026-07-24 DAL349 LGA → ATL Jul 24, 13:45 UTCJul 24, 15:15 UTC1h 30m
2026-07-24 DAL349 LGA → ATL Jul 24, 13:40 UTCJul 24, 15:10 UTC1h 30m
2026-07-24 DAL1320 ATL → PWM Jul 24, 03:20 UTCJul 24, 04:40 UTC1h 20m
2026-07-24 DAL1594 ATL → TPA Jul 24, 00:30 UTCJul 24, 01:35 UTC1h 5m
2026-07-23 DAL1594 ATL → TPA Jul 23, 21:40 UTCJul 23, 22:40 UTC1h 0m
2026-07-23 DAL1332 - Jul 23, 18:35 UTCJul 23, 20:00 UTC1h 25m
2026-07-23 DAL1332 ATL → MIA Jul 23, 15:15 UTCJul 23, 16:45 UTC1h 30m
2026-07-23 DAL349 LGA → ATL Jul 23, 12:15 UTCJul 23, 13:30 UTC1h 15m
2026-07-23 DAL1320 ATL → PWM Jul 23, 03:10 UTCJul 23, 04:25 UTC1h 15m
2026-07-23 DAL1497 ATL → MCO Jul 23, 00:05 UTCJul 23, 01:05 UTC1h 0m
2026-07-22 DAL1497 ATL → MCO Jul 22, 21:20 UTCJul 22, 22:25 UTC1h 5m
2026-07-22 DAL1190 MCO → BOS Jul 22, 18:15 UTCJul 22, 19:30 UTC1h 15m
2026-07-22 DAL1190 MCO → BOS Jul 22, 15:25 UTCJul 22, 16:45 UTC1h 20m
2026-07-22 DAL1315 ATL → CLE Jul 22, 12:10 UTCJul 22, 13:50 UTC1h 40m
2026-07-22 DAL1284 ATL → IAH Jul 22, 01:10 UTCJul 22, 02:40 UTC1h 30m
2026-07-21 DAL2720 JAX → ATL Jul 21, 22:00 UTCJul 21, 22:45 UTC45m
2026-07-21 DAL2720 JAX → ATL Jul 21, 19:40 UTCJul 21, 20:30 UTC50m
2026-07-21 DAL1510 - Jul 21, 16:15 UTCJul 21, 17:40 UTC1h 25m
2026-07-21 DAL1510 MIA → ATL Jul 21, 16:12 UTCJul 21, 17:37 UTC1h 25m
2026-07-21 DAL1510 ATL → MIA Jul 21, 13:00 UTCJul 21, 14:25 UTC1h 25m
2026-07-21 DAL2950 BWI → ATL Jul 21, 09:50 UTCJul 21, 11:15 UTC1h 25m
2026-07-20 DAL1257 ORD → LGA Jul 20, 23:55 UTCJul 21, 01:25 UTC1h 30m
2026-07-20 DAL835 - Jul 20, 19:15 UTCJul 20, 21:00 UTC1h 45m
2026-07-20 DAL835 SLC → OKC Jul 20, 16:10 UTCJul 20, 18:10 UTC2h 0m
2026-07-20 DAL1331 - Jul 20, 13:05 UTCJul 20, 14:30 UTC1h 25m
2026-07-20 DAL1331 SFO → SLC Jul 20, 13:02 UTCJul 20, 14:25 UTC1h 23m
2026-07-20 DAL2809 MSP → SFO Jul 20, 00:10 UTCJul 20, 03:35 UTC3h 25m
2026-07-18 DAL2695 MCO → BOS Jul 18, 21:45 UTCJul 18, 23:55 UTC2h 10m
2026-07-18 DAL2695 MCO → BOS Jul 18, 18:00 UTCJul 18, 20:10 UTC2h 10m
2026-07-18 DAL2090 ATL → MSP Jul 18, 14:30 UTCJul 18, 16:30 UTC2h 0m
2026-07-18 DAL1069 - Jul 18, 10:45 UTCJul 18, 12:20 UTC1h 35m
2026-07-18 DAL1601 - Jul 18, 06:05 UTCJul 18, 07:30 UTC1h 25m
2026-07-18 DAL2189 - Jul 18, 02:14 UTCJul 18, 03:15 UTC1h 1m
2026-07-18 DAL2189 JAX → ATL Jul 18, 02:13 UTCJul 18, 03:12 UTC59m
2026-07-18 DAL2189 - Jul 18, 00:19 UTCJul 18, 01:10 UTC50m
2026-07-17 DAL641 CUN → ATL Jul 17, 17:44 UTCJul 17, 20:00 UTC2h 15m
2026-07-17 DAL641 CUN → ATL Jul 17, 17:43 UTCJul 17, 19:59 UTC2h 16m
2026-07-17 DAL586 ATL → CUN Jul 17, 14:04 UTCJul 17, 16:19 UTC2h 15m
2026-07-17 DAL2294 - Jul 17, 02:10 UTCJul 17, 03:30 UTC1h 20m

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 N358DN page for operator, model, and routing details .

Mode-S A402DD frequently asked

What is Mode-S code A402DD?
A402DD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N358DN.
Where is Mode-S A402DD registered?
Mode-S code A402DD 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 A402DD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A402DD, octal 51001335, decimal 10,748,637.
What flights does A402DD operate?
Mode-S A402DD has broadcast 20 distinct callsigns, including DAL2401, DAL2397, DAL1332, DAL665, DAL1579.