Apparatus

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sensors Mode-S transponder

A46A72

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N384DA · BOEING 737-800 · operated by DELTA AIR LINES INC

Hex
A46A72
Octal
51065162
Decimal
10,775,154
Country
US
Tail
N384DA
Type
B738
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
489
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S A46A72.

Country allocation

The ICAO 24-bit address A46A72 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
DAL1431 - 10 2026-07-14
DAL2231 - 7 2026-07-14
DAL2106 - 7 2026-07-07
DAL760 Delta Air Lines 6 2026-06-15
DAL2905 Delta Air Lines 6 2026-05-12
DAL2413 - 6 2026-07-15
DAL2377 - 6 2026-07-22
DAL1914 Delta Air Lines 6 2026-05-06
DAL1837 Delta Air Lines 6 2026-05-06
DAL869 - 5 2026-06-30
DAL751 Delta Air Lines 5 2026-07-01
DAL2725 Delta Air Lines 5 2026-07-20
DAL2585 Delta Air Lines 5 2026-04-16
DAL2449 - 5 2026-07-18
DAL2447 Delta Air Lines 5 2026-04-21
DAL2444 Delta Air Lines 5 2026-05-12
DAL2041 Delta Air Lines 5 2026-07-21
DAL1564 Delta Air Lines 5 2026-05-26
DAL856 Delta Air Lines 4 2026-06-29
DAL661 - 4 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL2419 ATL → BTV Jul 26, 19:15 UTCJul 26, 21:45 UTC2h 30m
2026-07-26 DAL2419 ATL → BTV Jul 26, 15:45 UTCJul 26, 18:10 UTC2h 25m
2026-07-26 DAL2442 DCA → MSP Jul 26, 01:10 UTCJul 26, 03:40 UTC2h 30m
2026-07-25 DAL2442 DCA → MSP Jul 25, 21:15 UTCJul 26, 00:05 UTC2h 50m
2026-07-25 DAL1714 BNA → BOS Jul 25, 17:20 UTCJul 25, 19:25 UTC2h 5m
2026-07-25 DAL1714 BNA → BOS Jul 25, 17:18 UTCJul 25, 19:27 UTC2h 9m
2026-07-25 DAL306 AUS → LAX Jul 25, 12:50 UTCJul 25, 15:20 UTC2h 30m
2026-07-25 DAL692 LAX → AUS Jul 25, 01:50 UTCJul 25, 04:25 UTC2h 35m
2026-07-25 DAL692 LAX → AUS Jul 25, 01:46 UTCJul 25, 04:30 UTC2h 44m
2026-07-24 DAL986 ATL → SYR Jul 24, 22:05 UTCJul 25, 00:35 UTC2h 30m
2026-07-24 DAL986 ATL → SYR Jul 24, 17:40 UTCJul 24, 20:20 UTC2h 40m
2026-07-24 DAL2947 LAX → PDX Jul 24, 13:45 UTCJul 24, 15:55 UTC2h 10m
2026-07-24 DAL2457 JFK → FLL Jul 24, 03:20 UTCJul 24, 05:05 UTC1h 45m
2026-07-24 DAL2457 JFK → FLL Jul 24, 03:16 UTCJul 24, 04:59 UTC1h 43m
2026-07-24 DAL2120 LAX → LAS Jul 24, 00:50 UTCJul 24, 01:30 UTC40m
2026-07-24 DAL2120 LAX → LAS Jul 24, 00:46 UTCJul 24, 01:27 UTC41m
2026-07-23 DAL2120 LAX → LAS Jul 23, 22:45 UTCJul 23, 23:30 UTC45m
2026-07-23 DAL1696 GSP → DTW Jul 23, 20:30 UTCJul 23, 21:10 UTC40m
2026-07-23 DAL1696 GSP → DTW Jul 23, 18:25 UTCJul 23, 19:05 UTC40m
2026-07-23 DAL1556 RSW → LGA Jul 23, 12:55 UTCJul 23, 16:45 UTC3h 50m
2026-07-22 DAL2377 SLC → ORD Jul 22, 20:50 UTCJul 22, 23:25 UTC2h 35m
2026-07-22 DAL2377 SLC → ORD Jul 22, 20:46 UTCJul 22, 23:11 UTC2h 25m
2026-07-22 DAL1971 - Jul 22, 16:15 UTCJul 22, 19:10 UTC2h 55m
2026-07-22 DAL2897 - Jul 22, 12:10 UTCJul 22, 14:15 UTC2h 5m
2026-07-22 DAL2993 DTW → FLL Jul 22, 03:37 UTCJul 22, 05:42 UTC2h 5m
2026-07-22 DAL2993 DTW → FLL Jul 22, 03:40 UTCJul 22, 05:25 UTC1h 45m
2026-07-22 DAL1738 JFK → PBI Jul 22, 00:15 UTCJul 22, 01:25 UTC1h 10m
2026-07-21 DAL1738 JFK → PBI Jul 21, 21:40 UTCJul 21, 23:00 UTC1h 20m
2026-07-21 DAL1265 SEA → SLC Jul 21, 18:30 UTCJul 21, 20:05 UTC1h 35m
2026-07-21 DAL2041 MSP → IND Jul 21, 12:50 UTCJul 21, 17:00 UTC4h 10m
2026-07-21 DAL1634 COS → ATL Jul 21, 01:05 UTCJul 21, 04:45 UTC3h 40m
2026-07-20 DAL2725 ATL → AUS Jul 20, 22:55 UTCJul 20, 23:52 UTC57m
2026-07-20 DAL2725 ATL → AUS Jul 20, 22:55 UTCJul 21, 00:00 UTC1h 4m
2026-07-20 DAL2725 ATL → AUS Jul 20, 20:15 UTCJul 20, 21:05 UTC50m
2026-07-20 DAL2534 SLC → PDX Jul 20, 16:30 UTCJul 20, 19:00 UTC2h 30m
2026-07-20 DAL2686 MSP → BWI Jul 20, 03:05 UTCJul 20, 05:35 UTC2h 30m
2026-07-19 DAL2830 SEA → LAX Jul 19, 22:25 UTCJul 20, 00:55 UTC2h 30m
2026-07-19 DAL2922 LAS → SEA Jul 19, 18:20 UTCJul 19, 20:15 UTC1h 55m
2026-07-19 DAL2922 LAS → SEA Jul 19, 18:18 UTCJul 19, 20:17 UTC1h 59m
2026-07-19 DAL2922 SEA → LAS Jul 19, 14:55 UTCJul 19, 17:05 UTC2h 10m
2026-07-18 DAL2449 PHX → SEA Jul 18, 23:15 UTCJul 19, 01:40 UTC2h 25m
2026-07-18 DAL2449 SEA → PHX Jul 18, 19:20 UTCJul 18, 22:05 UTC2h 45m
2026-07-18 DAL2041 - Jul 18, 12:10 UTCJul 18, 16:05 UTC3h 55m
2026-07-18 DAL2041 ORD → SEA Jul 18, 12:09 UTCJul 18, 16:03 UTC3h 54m
2026-07-18 DAL1634 - Jul 18, 00:39 UTCJul 18, 04:15 UTC3h 36m
2026-07-17 DAL2725 - Jul 17, 22:20 UTCJul 17, 23:20 UTC1h 0m
2026-07-17 DAL2725 - Jul 17, 19:45 UTCJul 17, 20:35 UTC50m
2026-07-17 DAL1421 - Jul 17, 16:29 UTCJul 17, 17:30 UTC1h 0m
2026-07-17 DAL1421 - Jul 17, 14:10 UTCJul 17, 15:05 UTC55m
2026-07-17 DAL2298 - Jul 17, 00:20 UTCJul 17, 03:55 UTC3h 35m

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 N384DA page for operator, model, and routing details .

Mode-S A46A72 frequently asked

What is Mode-S code A46A72?
A46A72 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N384DA.
Where is Mode-S A46A72 registered?
Mode-S code A46A72 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 A46A72 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A46A72, octal 51065162, decimal 10,775,154.
What flights does A46A72 operate?
Mode-S A46A72 has broadcast 20 distinct callsigns, including DAL1431, DAL2231, DAL2106, DAL760, DAL2905.