Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A6B47C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N531DN · AIRBUS A-350-900 · operated by DELTA AIR LINES INC

Hex
A6B47C
Octal
51532174
Decimal
10,925,180
Country
US
Tail
N531DN
Type
A359
Broadcasting now · callsign DAL389 · 40,000 ft
Flights observed
109
Distinct callsigns
20
Country
US
Last broadcast
4h ago

Current position

A6B47C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A6B47C 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
DAL189 Delta Air Lines 19 2026-05-20
DAL188 Delta Air Lines 17 2026-05-21
DAL159 Delta Air Lines 8 2026-05-23
DAL27 Delta Air Lines 7 2026-05-25
DAL158 Delta Air Lines 7 2026-05-26
DAL26 Delta Air Lines 6 2026-05-24
DAL200 Delta Air Lines 6 2026-05-19
DAL201 Delta Air Lines 5 2026-05-19
DAL147 Delta Air Lines 4 2026-04-20
DAL146 Delta Air Lines 4 2026-04-21
DAL389 Delta Air Lines 3 2026-05-29
DAL281 Delta Air Lines 3 2026-05-28
DAL9971 Delta Air Lines 2 2026-05-13
DAL7 Delta Air Lines 2 2026-04-26
DAL388 Delta Air Lines 2 2026-05-29
DAL294 Delta Air Lines 2 2026-05-01
DAL280 Delta Air Lines 2 2026-05-27
DAL171 Delta Air Lines 2 2026-04-28
DAL120 Delta Air Lines 2 2026-04-27
DAL9980 Delta Air Lines 1 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 DAL389 JFK → DEN May 29, 18:00 UTCMay 30, 00:55 UTC6h 55m
2026-05-29 DAL388 SFO → JFK May 29, 03:30 UTCMay 29, 16:00 UTC12h 30m
2026-05-28 DAL388 SFO → JFK May 28, 09:05 UTCMay 29, 04:35 UTC19h 30m
2026-05-28 DAL281 SEA → PVG May 28, 08:30 UTCMay 29, 04:35 UTC20h 5m
2026-05-27 DAL281 SEA → PVG May 27, 23:30 UTCMay 28, 09:00 UTC9h 30m
2026-05-27 DAL281 SEA → PVG May 27, 23:28 UTCMay 28, 10:56 UTC11h 28m
2026-05-27 DAL280 SIN → ATL May 27, 04:39 UTCMay 27, 19:55 UTC15h 16m
2026-05-26 DAL280 SIN → ATL May 26, 23:05 UTCMay 27, 19:55 UTC20h 51m
2026-05-26 DAL389 JFK → DEN May 26, 22:39 UTCMay 27, 19:55 UTC21h 16m
2026-05-26 DAL389 JFK → DEN May 26, 16:59 UTCMay 27, 12:00 UTC19h 0m
2026-05-26 DAL158 ICN → DTW May 26, 01:34 UTCMay 26, 14:24 UTC12h 50m
2026-05-25 DAL27 ATL → ICN May 25, 04:12 UTCMay 25, 18:34 UTC14h 22m
2026-05-25 DAL27 ATL → ICN May 25, 04:15 UTCMay 25, 18:30 UTC14h 15m
2026-05-24 DAL26 ICN → ATL May 24, 10:00 UTCMay 24, 21:45 UTC11h 45m
2026-05-24 DAL26 ICN → ATL May 24, 09:58 UTCMay 24, 23:17 UTC13h 19m
2026-05-23 DAL159 DTW → ICN May 23, 17:15 UTCMay 24, 05:00 UTC11h 45m
2026-05-23 DAL159 DTW → ICN May 23, 17:14 UTCMay 24, 06:51 UTC13h 37m
2026-05-23 DAL158 ICN → DTW May 23, 01:55 UTCMay 23, 14:00 UTC12h 4m
2026-05-23 DAL158 ICN → DTW May 23, 01:51 UTCMay 23, 14:03 UTC12h 12m
2026-05-23 DAL27 ATL → ICN May 23, 00:10 UTCMay 23, 00:15 UTC5m
2026-05-22 DAL27 ATL → ICN May 22, 03:50 UTCMay 22, 18:00 UTC14h 10m
2026-05-21 DAL188 ICN → ATL May 21, 09:10 UTCMay 21, 22:10 UTC13h 0m
2026-05-20 DAL189 ATL → ICN May 20, 15:05 UTCMay 21, 06:55 UTC15h 50m
2026-05-19 DAL201 JNB → ATL May 19, 20:20 UTCMay 19, 20:50 UTC30m
2026-05-19 DAL201 JNB → ATL May 19, 20:20 UTCMay 20, 12:28 UTC16h 8m
2026-05-19 DAL200 ATL → JNB May 19, 02:42 UTCMay 19, 17:09 UTC14h 27m
2026-05-19 DAL200 ATL → JNB May 19, 02:45 UTCMay 19, 17:15 UTC14h 30m
2026-05-18 DAL9980 ATL → ATL May 18, 12:40 UTCMay 18, 13:35 UTC55m
2026-05-13 DAL9971 JFK → ATL May 13, 19:40 UTCMay 13, 20:05 UTC25m
2026-05-13 DAL9971 JFK → ATL May 13, 18:35 UTCMay 13, 19:35 UTC1h 0m
2026-05-12 DAL201 JNB → ATL May 12, 20:10 UTCMay 12, 20:40 UTC30m
2026-05-12 DAL201 JNB → ATL May 12, 20:06 UTCMay 13, 12:23 UTC16h 17m
2026-05-12 DAL200 ATL → JNB May 12, 02:45 UTCMay 12, 03:50 UTC1h 5m
2026-05-12 DAL200 ATL → JNB May 12, 02:41 UTCMay 12, 17:16 UTC14h 35m
2026-05-11 DAL26 ICN → ATL May 11, 10:15 UTCMay 11, 22:35 UTC12h 20m
2026-05-10 DAL159 DTW → ICN May 10, 17:34 UTCMay 11, 00:05 UTC6h 30m
2026-05-10 DAL159 DTW → ICN May 10, 17:31 UTCMay 11, 07:28 UTC13h 57m
2026-05-10 DAL158 ICN → DTW May 10, 01:24 UTCMay 10, 13:30 UTC12h 5m
2026-05-09 DAL27 ATL → ICN May 9, 03:50 UTCMay 9, 18:40 UTC14h 50m
2026-05-08 DAL188 ICN → ATL May 8, 07:50 UTCMay 8, 20:35 UTC12h 45m
2026-05-07 DAL189 ATL → ICN May 7, 14:05 UTCMay 8, 05:14 UTC15h 10m
2026-05-05 DAL201 JNB → ATL May 5, 22:10 UTCMay 6, 14:40 UTC16h 30m
2026-05-05 DAL200 ATL → JNB May 5, 02:45 UTCMay 5, 03:35 UTC50m
2026-05-05 DAL200 ATL → JNB May 5, 02:45 UTCMay 5, 17:18 UTC14h 33m
2026-05-04 DAL26 ICN → ATL May 4, 10:05 UTCMay 4, 11:40 UTC1h 35m
2026-05-04 DAL26 ICN → ATL May 4, 09:58 UTCMay 4, 22:55 UTC12h 57m
2026-05-03 DAL159 DTW → ICN May 3, 17:00 UTCMay 4, 07:35 UTC14h 35m
2026-05-03 DAL158 ICN → DTW May 3, 01:30 UTCMay 3, 13:30 UTC11h 59m
2026-05-02 DAL27 ATL → ICN May 2, 03:45 UTCMay 2, 18:55 UTC15h 10m
2026-05-01 DAL294 KIX → GUM May 1, 06:40 UTCMay 1, 18:25 UTC11h 45m

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 N531DN page for operator, model, and routing details .

Mode-S A6B47C frequently asked

What is Mode-S code A6B47C?
A6B47C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N531DN.
Where is Mode-S A6B47C registered?
Mode-S code A6B47C 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 A6B47C broadcasting right now?
Yes. Mode-S A6B47C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6B47C, octal 51532174, decimal 10,925,180.
What flights does A6B47C operate?
Mode-S A6B47C has broadcast 20 distinct callsigns, including DAL189, DAL188, DAL159, DAL27, DAL158.