Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A6B470

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N531DA · AIRBUS A-321neo · operated by DELTA AIR LINES INC

Hex
A6B470
Octal
51532160
Decimal
10,925,168
Country
US
Tail
N531DA
Type
A21N
No current signal · last broadcast Jul 26, 20:20 UTC
Flights observed
462
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:20 UTC

Last known position

Most recent position reported by Mode-S A6B470.

Country allocation

The ICAO 24-bit address A6B470 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
DAL1961 Delta Air Lines 17 2026-06-07
DAL422 - 15 2026-07-18
DAL1966 - 15 2026-06-17
DAL1780 Delta Air Lines 13 2026-07-24
DAL443 Delta Air Lines 11 2026-07-20
DAL515 - 10 2026-07-17
DAL1994 Delta Air Lines 10 2026-06-15
DAL1854 Delta Air Lines 8 2026-06-07
DAL1219 - 8 2026-07-17
DAL418 - 7 2026-07-19
DAL359 - 7 2026-07-10
DAL351 - 7 2026-07-09
DAL1859 Delta Air Lines 7 2026-06-07
DAL1833 Delta Air Lines 7 2026-06-15
DAL440 Delta Air Lines 6 2026-07-20
DAL407 Delta Air Lines 6 2026-04-15
DAL340 - 6 2026-07-17
DAL328 Delta Air Lines 6 2026-07-21
DAL324 Delta Air Lines 6 2026-07-24
DAL753 - 5 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL648 MSP → CUN Jul 26, 15:30 UTCJul 26, 20:15 UTC4h 45m
2026-07-26 DAL471 LAS → DTW Jul 26, 07:25 UTCJul 26, 11:30 UTC4h 5m
2026-07-25 DAL382 SEA → TPA Jul 25, 21:50 UTCJul 26, 02:20 UTC4h 30m
2026-07-25 DAL2032 SDF → ATL Jul 25, 16:10 UTCJul 25, 20:05 UTC3h 55m
2026-07-25 DAL1128 JFK → PBI Jul 25, 12:44 UTCJul 25, 14:14 UTC1h 30m
2026-07-25 DAL1128 JFK → PBI Jul 25, 12:45 UTCJul 25, 14:15 UTC1h 30m
2026-07-24 DAL324 LAX → JFK Jul 24, 23:51 UTCJul 25, 05:35 UTC5h 44m
2026-07-24 DAL324 LAX → JFK Jul 24, 23:55 UTCJul 25, 05:40 UTC5h 45m
2026-07-24 DAL1780 BOS → SJU Jul 24, 20:50 UTCJul 24, 21:45 UTC55m
2026-07-24 DAL1780 BOS → SJU Jul 24, 18:20 UTCJul 24, 18:40 UTC20m
2026-07-24 DAL1780 BOS → SJU Jul 24, 16:30 UTCJul 24, 16:50 UTC20m
2026-07-24 DAL1780 BOS → SJU Jul 24, 13:25 UTCJul 24, 14:15 UTC50m
2026-07-24 DAL473 BOS → LAX Jul 24, 06:45 UTCJul 24, 11:10 UTC4h 25m
2026-07-23 DAL506 LGA → ATL Jul 23, 23:00 UTCJul 24, 04:40 UTC5h 40m
2026-07-23 DAL506 LGA → ATL Jul 23, 15:35 UTCJul 23, 20:55 UTC5h 20m
2026-07-23 DAL375 ATL → BOS Jul 23, 12:30 UTCJul 23, 13:25 UTC55m
2026-07-22 DAL428 SJC → ATL Jul 22, 22:15 UTCJul 23, 03:40 UTC5h 25m
2026-07-22 DAL2119 MSP → LAX Jul 22, 17:15 UTCJul 22, 20:35 UTC3h 20m
2026-07-22 DAL2119 MSP → LAX Jul 22, 17:14 UTCJul 22, 20:28 UTC3h 14m
2026-07-22 DAL1138 BOS → MSP Jul 22, 12:58 UTCJul 22, 15:48 UTC2h 50m
2026-07-22 DAL1138 BOS → MSP Jul 22, 13:00 UTCJul 22, 15:50 UTC2h 50m
2026-07-21 DAL571 ATL → LGA Jul 21, 23:05 UTCJul 22, 04:40 UTC5h 35m
2026-07-21 DAL459 JFK → SAN Jul 21, 14:50 UTCJul 21, 19:35 UTC4h 45m
2026-07-21 DAL328 OGG → SEA Jul 21, 00:25 UTCJul 21, 05:30 UTC5h 5m
2026-07-20 DAL328 OGG → SEA Jul 20, 17:30 UTCJul 20, 22:25 UTC4h 55m
2026-07-20 DAL440 ATL → SFO Jul 20, 13:25 UTCJul 20, 14:15 UTC50m
2026-07-20 DAL440 ATL → SFO Jul 20, 09:05 UTCJul 20, 09:20 UTC15m
2026-07-20 DAL443 ATL → PHL Jul 20, 01:50 UTCJul 20, 07:10 UTC5h 20m
2026-07-19 DAL1875 - Jul 19, 18:00 UTCJul 19, 23:25 UTC5h 25m
2026-07-19 DAL476 ATL → SLC Jul 19, 12:00 UTCJul 19, 12:55 UTC55m
2026-07-19 DAL418 - Jul 19, 00:25 UTCJul 19, 00:50 UTC25m
2026-07-18 DAL422 - Jul 18, 17:10 UTCJul 18, 17:25 UTC15m
2026-07-18 DAL422 HNL → LAX Jul 18, 17:06 UTCJul 18, 22:01 UTC4h 55m
2026-07-18 DAL422 HNL → LAX Jul 18, 17:06 UTCJul 18, 22:05 UTC4h 59m
2026-07-18 DAL443 ATL → PHL Jul 18, 07:05 UTCJul 18, 07:25 UTC20m
2026-07-18 DAL443 ATL → PHL Jul 18, 02:09 UTCJul 18, 02:40 UTC30m
2026-07-17 DAL1219 ATL → LAX Jul 17, 20:45 UTCJul 18, 00:36 UTC3h 51m
2026-07-17 DAL1219 ATL → LAX Jul 17, 20:50 UTCJul 18, 00:50 UTC4h 0m
2026-07-17 DAL515 - Jul 17, 14:15 UTCJul 17, 19:05 UTC4h 50m
2026-07-17 DAL486 - Jul 17, 11:04 UTCJul 17, 11:45 UTC40m
2026-07-17 DAL486 - Jul 17, 06:54 UTCJul 17, 07:05 UTC10m
2026-07-17 DAL340 - Jul 17, 04:10 UTCJul 17, 04:25 UTC15m
2026-07-16 DAL340 SEA → KOA Jul 16, 22:57 UTCJul 17, 04:30 UTC5h 33m
2026-07-16 DAL340 - Jul 16, 22:59 UTCJul 16, 23:55 UTC55m
2026-07-16 DAL648 ATL → SEA Jul 16, 16:09 UTCJul 16, 20:49 UTC4h 40m
2026-07-16 DAL923 BOS → ATL Jul 16, 12:28 UTCJul 16, 14:32 UTC2h 4m
2026-07-16 DAL923 BOS → ATL Jul 16, 12:30 UTCJul 16, 14:29 UTC2h 0m
2026-07-15 DAL438 SEA → BOS Jul 15, 18:40 UTCJul 15, 23:20 UTC4h 40m
2026-07-15 DAL2092 - Jul 15, 11:20 UTCJul 15, 16:35 UTC5h 15m
2026-07-15 DAL1114 SEA → PHL Jul 15, 04:55 UTCJul 15, 09:35 UTC4h 40m

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 N531DA page for operator, model, and routing details .

Mode-S A6B470 frequently asked

What is Mode-S code A6B470?
A6B470 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N531DA.
Where is Mode-S A6B470 registered?
Mode-S code A6B470 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 A6B470 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6B470, octal 51532160, decimal 10,925,168.
What flights does A6B470 operate?
Mode-S A6B470 has broadcast 20 distinct callsigns, including DAL1961, DAL422, DAL1966, DAL1780, DAL443.