Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3BDA6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N340DN · AIRBUS A-321 · operated by UMB BANK NA TRUSTEE

Hex
A3BDA6
Octal
50736646
Decimal
10,730,918
Country
US
Tail
N340DN
Type
A321
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
540
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S A3BDA6.

Country allocation

The ICAO 24-bit address A3BDA6 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
DAL1579 - 10 2026-07-18
DAL1099 - 10 2026-07-14
DAL961 Delta Air Lines 9 2026-05-30
DAL374 Delta Air Lines 9 2026-07-18
DAL1294 - 9 2026-07-15
DAL838 - 8 2026-06-22
DAL1375 - 8 2026-06-27
DAL1266 Delta Air Lines 8 2026-07-22
DAL1153 - 7 2026-07-17
DAL2720 Delta Air Lines 6 2026-05-17
DAL2011 - 6 2026-06-30
DAL1919 - 6 2026-07-03
DAL1311 Delta Air Lines 6 2026-05-25
DAL322 Delta Air Lines 5 2026-05-03
DAL1748 - 5 2026-07-15
DAL1587 Delta Air Lines 5 2026-05-17
DAL1585 - 5 2026-06-29
DAL1527 Delta Air Lines 5 2026-06-13
DAL1384 Delta Air Lines 5 2026-04-21
DAL1152 - 5 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL1323 MIA → ATL Jul 26, 20:25 UTCJul 26, 21:30 UTC1h 5m
2026-07-26 DAL1632 DTW → BOS Jul 26, 01:55 UTCJul 26, 03:20 UTC1h 25m
2026-07-25 DAL1631 BOS → ATL Jul 25, 21:20 UTCJul 25, 22:55 UTC1h 35m
2026-07-25 DAL1631 BOS → ATL Jul 25, 21:19 UTCJul 25, 22:53 UTC1h 34m
2026-07-25 DAL1190 MCO → BOS Jul 25, 18:25 UTCJul 25, 19:45 UTC1h 20m
2026-07-25 DAL1190 MCO → BOS Jul 25, 18:23 UTCJul 25, 19:45 UTC1h 22m
2026-07-25 DAL1190 MCO → BOS Jul 25, 15:10 UTCJul 25, 16:30 UTC1h 20m
2026-07-25 DAL893 JFK → PBI Jul 25, 12:00 UTCJul 25, 13:40 UTC1h 40m
2026-07-25 DAL3161 ATL → CMH Jul 25, 02:25 UTCJul 25, 04:05 UTC1h 40m
2026-07-24 DAL2621 SEA → BOS Jul 24, 23:55 UTCJul 25, 00:55 UTC1h 0m
2026-07-24 DAL2621 SEA → BOS Jul 24, 23:52 UTCJul 25, 00:47 UTC55m
2026-07-24 DAL2600 JAX → BOS Jul 24, 21:00 UTCJul 24, 21:55 UTC55m
2026-07-24 DAL1137 MIA → ATL Jul 24, 16:40 UTCJul 24, 18:55 UTC2h 15m
2026-07-24 DAL1137 MIA → ATL Jul 24, 13:25 UTCJul 24, 15:25 UTC2h 0m
2026-07-24 DAL2950 BWI → ATL Jul 24, 10:10 UTCJul 24, 11:30 UTC1h 20m
2026-07-24 DAL1257 ORD → LGA Jul 24, 00:00 UTCJul 24, 01:35 UTC1h 35m
2026-07-23 DAL2131 BOS → TPA Jul 23, 21:00 UTCJul 23, 22:40 UTC1h 40m
2026-07-23 DAL2131 BOS → TPA Jul 23, 17:45 UTCJul 23, 19:15 UTC1h 30m
2026-07-23 DAL456 SFO → ATL Jul 23, 13:52 UTCJul 23, 16:08 UTC2h 16m
2026-07-23 DAL456 SFO → ATL Jul 23, 13:55 UTCJul 23, 16:10 UTC2h 15m
2026-07-22 DAL821 BOS → FLL Jul 22, 22:50 UTCJul 23, 00:50 UTC2h 0m
2026-07-22 DAL1372 MCO → ATL Jul 22, 19:55 UTCJul 22, 21:00 UTC1h 5m
2026-07-22 DAL1372 MCO → ATL Jul 22, 19:54 UTCJul 22, 20:53 UTC59m
2026-07-22 DAL1372 ATL → MCO Jul 22, 17:05 UTCJul 22, 18:10 UTC1h 5m
2026-07-22 DAL1266 SLC → BZN Jul 22, 14:10 UTCJul 22, 15:30 UTC1h 20m
2026-07-22 DAL1266 SLC → BZN Jul 22, 11:20 UTCJul 22, 12:40 UTC1h 20m
2026-07-21 DAL665 - Jul 21, 18:55 UTCJul 21, 22:45 UTC3h 50m
2026-07-21 DAL665 ONT → ATL Jul 21, 18:54 UTCJul 21, 22:47 UTC3h 53m
2026-07-21 DAL665 ATL → ONT Jul 21, 13:30 UTCJul 21, 17:15 UTC3h 45m
2026-07-21 DAL2353 EWR → ATL Jul 21, 10:20 UTCJul 21, 12:00 UTC1h 40m
2026-07-21 DAL2527 ATL → EWR Jul 21, 00:38 UTCJul 21, 02:36 UTC1h 58m
2026-07-21 DAL2527 ATL → EWR Jul 21, 00:40 UTCJul 21, 02:50 UTC2h 10m
2026-07-20 DAL2322 ATL → EWR Jul 20, 21:10 UTCJul 20, 22:50 UTC1h 40m
2026-07-20 DAL2322 ATL → EWR Jul 20, 17:55 UTCJul 20, 19:45 UTC1h 50m
2026-07-20 DAL1462 - Jul 20, 14:40 UTCJul 20, 15:45 UTC1h 5m
2026-07-20 DAL1462 - Jul 20, 11:45 UTCJul 20, 12:55 UTC1h 10m
2026-07-19 DAL2063 - Jul 19, 19:55 UTCJul 19, 21:30 UTC1h 35m
2026-07-19 DAL2063 - Jul 19, 15:50 UTCJul 19, 17:25 UTC1h 35m
2026-07-19 DAL1258 AUS → ATL Jul 19, 11:35 UTCJul 19, 13:20 UTC1h 45m
2026-07-19 DAL1170 SLC → AUS Jul 19, 00:10 UTCJul 19, 02:00 UTC1h 50m
2026-07-18 DAL1579 - Jul 18, 20:20 UTCJul 18, 21:40 UTC1h 20m
2026-07-18 DAL1579 MIA → ATL Jul 18, 20:18 UTCJul 18, 21:38 UTC1h 20m
2026-07-18 DAL1579 - Jul 18, 17:00 UTCJul 18, 18:45 UTC1h 45m
2026-07-18 DAL1266 - Jul 18, 14:10 UTCJul 18, 15:30 UTC1h 20m
2026-07-18 DAL1266 - Jul 18, 11:25 UTCJul 18, 12:50 UTC1h 25m
2026-07-18 DAL374 SFO → BOS Jul 18, 01:39 UTCJul 18, 03:25 UTC1h 46m
2026-07-17 DAL374 SFO → BOS Jul 17, 21:00 UTCJul 17, 22:45 UTC1h 45m
2026-07-17 DAL1153 RSW → ATL Jul 17, 17:25 UTCJul 17, 19:00 UTC1h 35m
2026-07-17 DAL1153 RSW → ATL Jul 17, 17:24 UTCJul 17, 19:01 UTC1h 37m
2026-07-17 DAL1153 ATL → RSW Jul 17, 14:44 UTCJul 17, 16:10 UTC1h 25m

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 N340DN page for operator, model, and routing details .

Mode-S A3BDA6 frequently asked

What is Mode-S code A3BDA6?
A3BDA6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N340DN.
Where is Mode-S A3BDA6 registered?
Mode-S code A3BDA6 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 A3BDA6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3BDA6, octal 50736646, decimal 10,730,918.
What flights does A3BDA6 operate?
Mode-S A3BDA6 has broadcast 20 distinct callsigns, including DAL1579, DAL1099, DAL961, DAL374, DAL1294.