Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3B3DF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N338DN · AIRBUS A-321 · operated by UMB BANK NA TRUSTEE

Hex
A3B3DF
Octal
50731737
Decimal
10,728,415
Country
US
Tail
N338DN
Type
A321
Broadcasting now · callsign DAL1848 · 32,975 ft
Flights observed
522
Distinct callsigns
20
Country
US
Last broadcast
41m ago

Current position

A3B3DF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3B3DF 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 - 9 2026-07-02
DAL1946 - 8 2026-06-19
DAL1150 - 8 2026-07-12
DAL385 Delta Air Lines 7 2026-05-27
DAL1572 Delta Air Lines 7 2026-06-13
DAL1512 - 7 2026-07-10
DAL1458 - 7 2026-06-30
DAL1295 - 7 2026-07-11
DAL1576 Delta Air Lines 6 2026-05-23
DAL1527 - 6 2026-07-11
DAL1384 Delta Air Lines 6 2026-07-04
DAL1266 Delta Air Lines 6 2026-05-19
DAL893 - 5 2026-06-17
DAL456 - 5 2026-07-09
DAL2890 Delta Air Lines 5 2026-05-27
DAL2739 Delta Air Lines 5 2026-05-03
DAL2189 Delta Air Lines 5 2026-06-15
DAL2011 Delta Air Lines 5 2026-06-04
DAL1491 - 5 2026-06-26
DAL1294 Delta Air Lines 5 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL1815 - Jul 14, 15:20 UTCJul 14, 21:45 UTC6h 25m
2026-07-14 DAL1415 - Jul 14, 12:10 UTCJul 14, 13:25 UTC1h 15m
2026-07-13 DAL1348 ATL → RIC Jul 13, 21:50 UTCJul 13, 22:55 UTC1h 5m
2026-07-13 DAL1332 - Jul 13, 18:35 UTCJul 13, 20:10 UTC1h 35m
2026-07-13 DAL1332 - Jul 13, 15:20 UTCJul 13, 16:50 UTC1h 30m
2026-07-13 DAL1066 - Jul 13, 11:55 UTCJul 13, 13:50 UTC1h 55m
2026-07-13 DAL1222 - Jul 13, 02:30 UTCJul 13, 04:30 UTC2h 0m
2026-07-12 DAL1150 MCO → ATL Jul 12, 23:30 UTCJul 13, 00:35 UTC1h 5m
2026-07-12 DAL1150 MCO → ATL Jul 12, 23:29 UTCJul 13, 00:37 UTC1h 8m
2026-07-12 DAL1150 ATL → MCO Jul 12, 20:35 UTCJul 12, 21:40 UTC1h 5m
2026-07-12 DAL2976 AUS → ATL Jul 12, 15:50 UTCJul 12, 17:45 UTC1h 55m
2026-07-12 DAL2976 AUS → ATL Jul 12, 15:48 UTCJul 12, 17:39 UTC1h 51m
2026-07-12 DAL2976 ATL → AUS Jul 12, 12:25 UTCJul 12, 14:20 UTC1h 55m
2026-07-12 DAL1323 MIA → ATL Jul 12, 00:01 UTCJul 12, 01:30 UTC1h 30m
2026-07-11 DAL1323 ATL → MIA Jul 11, 20:37 UTCJul 11, 22:01 UTC1h 24m
2026-07-11 DAL1323 ATL → MIA Jul 11, 20:40 UTCJul 11, 22:05 UTC1h 25m
2026-07-11 DAL1527 - Jul 11, 17:05 UTCJul 11, 18:35 UTC1h 30m
2026-07-11 DAL1527 - Jul 11, 14:10 UTCJul 11, 15:35 UTC1h 25m
2026-07-11 DAL1352 - Jul 11, 11:00 UTCJul 11, 12:35 UTC1h 35m
2026-07-11 DAL1065 - Jul 11, 03:20 UTCJul 11, 03:45 UTC25m
2026-07-11 DAL1065 - Jul 11, 03:18 UTCJul 11, 04:36 UTC1h 18m
2026-07-11 DAL1295 FLL → ATL Jul 11, 00:10 UTCJul 11, 01:35 UTC1h 25m
2026-07-10 DAL1295 ATL → FLL Jul 10, 21:00 UTCJul 10, 22:25 UTC1h 25m
2026-07-10 DAL1512 PPM → ATL Jul 10, 17:50 UTCJul 10, 19:10 UTC1h 20m
2026-07-10 DAL1512 ATL → FLL Jul 10, 14:50 UTCJul 10, 16:15 UTC1h 25m
2026-07-10 DAL1211 - Jul 10, 11:30 UTCJul 10, 12:55 UTC1h 25m
2026-07-10 DAL1588 - Jul 10, 03:00 UTCJul 10, 04:25 UTC1h 25m
2026-07-09 DAL2131 - Jul 9, 23:50 UTCJul 10, 01:30 UTC1h 40m
2026-07-09 DAL2131 - Jul 9, 23:10 UTCJul 9, 23:15 UTC5m
2026-07-09 DAL2131 ATL → PHL Jul 9, 18:55 UTCJul 9, 20:30 UTC1h 35m
2026-07-09 DAL456 BOS → ATL Jul 9, 13:25 UTCJul 9, 15:40 UTC2h 15m
2026-07-08 DAL518 ATL → BOS Jul 8, 21:10 UTCJul 8, 23:10 UTC2h 0m
2026-07-08 DAL1153 RSW → ATL Jul 8, 17:25 UTCJul 8, 18:35 UTC1h 10m
2026-07-08 DAL1153 ATL → RSW Jul 8, 14:55 UTCJul 8, 16:15 UTC1h 20m
2026-07-08 DAL1673 EWR → ATL Jul 8, 11:15 UTCJul 8, 13:05 UTC1h 50m
2026-07-08 DAL1673 EWR → ATL Jul 8, 11:15 UTCJul 8, 13:01 UTC1h 46m
2026-07-07 DAL2498 ATL → EWR Jul 7, 23:33 UTCJul 8, 01:40 UTC2h 7m
2026-07-07 DAL2498 ATL → EWR Jul 7, 23:35 UTCJul 8, 01:45 UTC2h 10m
2026-07-07 DAL1372 - Jul 7, 20:55 UTCJul 7, 22:00 UTC1h 5m
2026-07-07 DAL1372 MCO → ATL Jul 7, 20:55 UTCJul 7, 21:55 UTC1h 0m
2026-07-07 DAL1372 ATL → MCO Jul 7, 18:25 UTCJul 7, 19:25 UTC1h 0m
2026-07-07 DAL2325 EWR → ATL Jul 7, 14:55 UTCJul 7, 16:45 UTC1h 50m
2026-07-07 DAL2325 ATL → EWR Jul 7, 11:25 UTCJul 7, 13:00 UTC1h 35m
2026-07-06 DAL597 - Jul 6, 19:25 UTCJul 6, 21:30 UTC2h 5m
2026-07-06 DAL597 CUN → ATL Jul 6, 19:22 UTCJul 6, 21:26 UTC2h 4m
2026-07-06 DAL598 ATL → CUN Jul 6, 15:40 UTCJul 6, 17:50 UTC2h 10m
2026-07-06 DAL1066 - Jul 6, 11:55 UTCJul 6, 13:50 UTC1h 55m
2026-07-06 DAL1222 - Jul 6, 01:10 UTCJul 6, 03:05 UTC1h 55m
2026-07-05 DAL399 BNH → ATL Jul 5, 20:50 UTCJul 5, 23:10 UTC2h 20m
2026-07-05 DAL350 ATL → BOS Jul 5, 17:05 UTCJul 5, 19:05 UTC2h 0m

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 N338DN page for operator, model, and routing details .

Mode-S A3B3DF frequently asked

What is Mode-S code A3B3DF?
A3B3DF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N338DN.
Where is Mode-S A3B3DF registered?
Mode-S code A3B3DF 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 A3B3DF broadcasting right now?
Yes. Mode-S A3B3DF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3B3DF, octal 50731737, decimal 10,728,415.
What flights does A3B3DF operate?
Mode-S A3B3DF has broadcast 20 distinct callsigns, including DAL1579, DAL1946, DAL1150, DAL385, DAL1572.