Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A6833B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N519DT · AIRBUS A-321neo · operated by DELTA AIR LINES INC

Hex
A6833B
Octal
51501473
Decimal
10,912,571
Country
US
Tail
N519DT
Type
A21N
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
433
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S A6833B.

Country allocation

The ICAO 24-bit address A6833B 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
DAL1966 Delta Air Lines 16 2026-05-21
DAL351 - 11 2026-06-23
DAL328 - 10 2026-06-17
DAL1780 - 10 2026-06-29
DAL359 - 9 2026-06-24
DAL786 - 8 2026-07-16
DAL440 Delta Air Lines 8 2026-06-17
DAL486 - 7 2026-07-04
DAL345 Delta Air Lines 7 2026-06-11
DAL340 Delta Air Lines 7 2026-07-04
DAL1961 Delta Air Lines 7 2026-04-25
DAL477 Delta Air Lines 6 2026-05-04
DAL429 Delta Air Lines 6 2026-06-07
DAL830 - 5 2026-07-20
DAL702 - 5 2026-07-21
DAL504 - 5 2026-06-19
DAL473 - 5 2026-06-29
DAL452 - 5 2026-07-12
DAL415 - 5 2026-07-17
DAL375 Delta Air Lines 5 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2914 MCI → ATL Jul 26, 20:00 UTCJul 26, 22:20 UTC2h 20m
2026-07-26 DAL384 JFK → SLC Jul 26, 12:30 UTCJul 26, 18:10 UTC5h 40m
2026-07-26 DAL571 ATL → LGA Jul 26, 05:20 UTCJul 26, 10:20 UTC5h 1m
2026-07-25 DAL571 ATL → LGA Jul 25, 21:30 UTCJul 26, 03:00 UTC5h 30m
2026-07-25 DAL459 JFK → SAN Jul 25, 14:55 UTCJul 25, 19:30 UTC4h 35m
2026-07-25 DAL459 JFK → SAN Jul 25, 14:51 UTCJul 25, 19:31 UTC4h 40m
2026-07-25 DAL2449 BOS → JFK Jul 25, 04:10 UTCJul 25, 06:35 UTC2h 25m
2026-07-25 DAL2449 BOS → JFK Jul 25, 00:10 UTCJul 25, 02:55 UTC2h 45m
2026-07-23 DAL2870 FLL → LGA Jul 23, 19:15 UTCJul 23, 20:40 UTC1h 25m
2026-07-23 DAL2870 FLL → LGA Jul 23, 16:00 UTCJul 23, 18:00 UTC2h 0m
2026-07-22 DAL506 LGA → ATL Jul 22, 22:45 UTCJul 23, 04:35 UTC5h 50m
2026-07-22 DAL506 LGA → ATL Jul 22, 15:20 UTCJul 22, 20:25 UTC5h 5m
2026-07-22 DAL375 ATL → BOS Jul 22, 07:55 UTCJul 22, 13:23 UTC5h 28m
2026-07-21 DAL428 SJC → ATL Jul 21, 21:50 UTCJul 22, 03:15 UTC5h 25m
2026-07-21 DAL2119 MSP → LAX Jul 21, 16:50 UTCJul 21, 20:00 UTC3h 10m
2026-07-21 DAL1138 BOS → MSP Jul 21, 11:57 UTCJul 21, 14:46 UTC2h 49m
2026-07-21 DAL1138 BOS → MSP Jul 21, 12:00 UTCJul 21, 14:40 UTC2h 40m
2026-07-21 DAL702 SLC → BOS Jul 21, 01:50 UTCJul 21, 05:40 UTC3h 50m
2026-07-21 DAL702 SLC → BOS Jul 21, 01:48 UTCJul 21, 05:38 UTC3h 50m
2026-07-20 DAL1209 PDX → SLC Jul 20, 23:00 UTCJul 21, 00:30 UTC1h 30m
2026-07-20 DAL1209 PDX → SLC Jul 20, 22:58 UTCJul 21, 00:23 UTC1h 25m
2026-07-20 DAL1209 SLC → PDX Jul 20, 20:25 UTCJul 20, 21:45 UTC1h 20m
2026-07-20 DAL830 ATL → SLC Jul 20, 12:25 UTCJul 20, 15:40 UTC3h 15m
2026-07-20 DAL905 SLC → ATL Jul 20, 00:09 UTCJul 20, 03:28 UTC3h 19m
2026-07-20 DAL905 SLC → ATL Jul 20, 00:10 UTCJul 20, 03:35 UTC3h 25m
2026-07-19 DAL1209 PDX → SLC Jul 19, 20:57 UTCJul 19, 22:20 UTC1h 23m
2026-07-19 DAL1209 SLC → PDX Jul 19, 17:30 UTCJul 19, 18:55 UTC1h 25m
2026-07-18 DAL917 JFK → SLC Jul 18, 20:30 UTCJul 19, 00:50 UTC4h 20m
2026-07-18 DAL1993 - Jul 18, 02:40 UTCJul 18, 13:35 UTC10h 56m
2026-07-18 DAL1975 - Jul 18, 02:05 UTCJul 18, 02:35 UTC30m
2026-07-17 DAL415 SEA → JFK Jul 17, 19:00 UTCJul 17, 23:30 UTC4h 30m
2026-07-17 DAL2092 - Jul 17, 11:45 UTCJul 17, 14:39 UTC2h 55m
2026-07-17 DAL2092 PHL → SEA Jul 17, 11:45 UTCJul 17, 16:38 UTC4h 53m
2026-07-17 DAL1114 SEA → PHL Jul 17, 04:44 UTCJul 17, 09:04 UTC4h 20m
2026-07-16 DAL786 DCA → SEA Jul 16, 21:35 UTCJul 17, 02:45 UTC5h 10m
2026-07-16 DAL786 SEA → DCA Jul 16, 14:35 UTCJul 16, 18:55 UTC4h 20m
2026-07-16 DAL786 SEA → DCA Jul 16, 14:32 UTCJul 16, 18:50 UTC4h 18m
2026-07-16 DAL394 - Jul 16, 11:40 UTCJul 16, 12:34 UTC55m
2026-07-16 DAL418 - Jul 16, 05:15 UTCJul 16, 05:25 UTC10m
2026-07-16 DAL418 - Jul 16, 00:05 UTCJul 16, 00:30 UTC25m
2026-07-16 DAL418 LAX → OGG Jul 16, 00:03 UTCJul 16, 05:25 UTC5h 22m
2026-07-15 DAL422 - Jul 15, 21:25 UTCJul 15, 22:10 UTC45m
2026-07-15 DAL422 - Jul 15, 17:10 UTCJul 15, 17:25 UTC15m
2026-07-14 DAL465 - Jul 14, 21:05 UTCJul 15, 02:30 UTC5h 24m
2026-07-14 DAL829 - Jul 14, 17:55 UTCJul 14, 19:20 UTC1h 25m
2026-07-14 DAL1117 - Jul 14, 13:35 UTCJul 14, 15:00 UTC1h 25m
2026-07-14 DAL1202 - Jul 14, 05:10 UTCJul 14, 07:05 UTC1h 55m
2026-07-13 DAL887 - Jul 13, 21:25 UTCJul 14, 01:35 UTC4h 10m
2026-07-13 DAL510 LAS → JFK Jul 13, 14:45 UTCJul 13, 19:20 UTC4h 35m
2026-07-12 DAL568 JFK → LAS Jul 12, 23:55 UTCJul 13, 04:20 UTC4h 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 N519DT page for operator, model, and routing details .

Mode-S A6833B frequently asked

What is Mode-S code A6833B?
A6833B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N519DT.
Where is Mode-S A6833B registered?
Mode-S code A6833B 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 A6833B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6833B, octal 51501473, decimal 10,912,571.
What flights does A6833B operate?
Mode-S A6833B has broadcast 20 distinct callsigns, including DAL1966, DAL351, DAL328, DAL1780, DAL359.