Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A0669D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N125DN · AIRBUS A-321 · operated by DELTA AIR LINES INC

Hex
A0669D
Octal
50063235
Decimal
10,512,029
Country
US
Tail
N125DN
Type
A321
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
535
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S A0669D.

Country allocation

The ICAO 24-bit address A0669D 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
DAL2465 Delta Air Lines 9 2026-07-22
DAL957 Delta Air Lines 7 2026-07-17
DAL1580 Delta Air Lines 7 2026-06-12
DAL2849 - 6 2026-06-21
DAL2732 Delta Air Lines 6 2026-07-04
DAL2589 - 6 2026-07-14
DAL2540 - 6 2026-07-13
DAL2125 - 6 2026-07-24
DAL1745 Delta Air Lines 6 2026-07-20
DAL1113 Delta Air Lines 6 2026-07-25
DAL992 - 5 2026-07-15
DAL3024 - 5 2026-07-15
DAL2877 Delta Air Lines 5 2026-06-04
DAL2848 Delta Air Lines 5 2026-05-25
DAL2770 Delta Air Lines 5 2026-04-14
DAL2564 - 5 2026-07-13
DAL2546 Delta Air Lines 5 2026-05-03
DAL2520 Delta Air Lines 5 2026-06-03
DAL2321 - 5 2026-06-24
DAL2258 - 5 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL322 SFO → BOS Jul 26, 19:00 UTCJul 26, 21:00 UTC2h 0m
2026-07-26 DAL855 ATL → BOS Jul 26, 14:35 UTCJul 26, 16:40 UTC2h 5m
2026-07-26 DAL1221 MSP → SLC Jul 26, 11:00 UTCJul 26, 12:35 UTC1h 35m
2026-07-25 DAL2388 SEA → LAS Jul 25, 22:20 UTCJul 26, 00:00 UTC1h 40m
2026-07-25 DAL2388 SEA → LAS Jul 25, 22:17 UTCJul 25, 23:54 UTC1h 37m
2026-07-25 DAL346 BOS → SFO Jul 25, 18:00 UTCJul 25, 20:35 UTC2h 35m
2026-07-25 DAL1113 PHL → SLC Jul 25, 13:15 UTCJul 25, 15:50 UTC2h 35m
2026-07-24 DAL2172 JFK → MSP Jul 24, 22:05 UTCJul 25, 02:05 UTC4h 0m
2026-07-24 DAL2125 MSP → SAN Jul 24, 16:55 UTCJul 24, 20:10 UTC3h 15m
2026-07-24 DAL2960 PSC → MSP Jul 24, 13:00 UTCJul 24, 15:10 UTC2h 10m
2026-07-24 DAL1460 RIC → ATL Jul 24, 09:55 UTCJul 24, 11:05 UTC1h 10m
2026-07-24 DAL1263 ORD → ATL Jul 24, 03:30 UTCJul 24, 04:35 UTC1h 5m
2026-07-23 DAL540 BOS → TPA Jul 23, 21:55 UTCJul 24, 02:00 UTC4h 5m
2026-07-23 DAL540 BOS → TPA Jul 23, 16:45 UTCJul 23, 20:30 UTC3h 45m
2026-07-23 DAL1763 SJU → ATL Jul 23, 13:30 UTCJul 23, 15:05 UTC1h 35m
2026-07-23 DAL1763 SJU → ATL Jul 23, 11:50 UTCJul 23, 12:00 UTC10m
2026-07-22 DAL1861 ATL → SJU Jul 22, 23:25 UTCJul 23, 02:40 UTC3h 15m
2026-07-22 DAL2990 ATL → BOS Jul 22, 21:00 UTCJul 22, 21:45 UTC45m
2026-07-22 DAL2990 ATL → BOS Jul 22, 19:05 UTCJul 22, 19:50 UTC45m
2026-07-22 DAL993 DTW → SLC Jul 22, 15:54 UTCJul 22, 17:43 UTC1h 49m
2026-07-22 DAL993 DTW → SLC Jul 22, 15:55 UTCJul 22, 17:15 UTC1h 20m
2026-07-22 DAL2465 ATL → PHL Jul 22, 01:35 UTCJul 22, 03:35 UTC2h 0m
2026-07-21 DAL2465 ATL → PHL Jul 21, 16:25 UTCJul 21, 18:55 UTC2h 30m
2026-07-21 DAL2465 ATL → PHL Jul 21, 12:25 UTCJul 21, 14:10 UTC1h 45m
2026-07-21 DAL2465 ATL → PHL Jul 21, 11:50 UTCJul 21, 12:20 UTC30m
2026-07-21 DAL2466 - Jul 21, 00:40 UTCJul 21, 03:15 UTC2h 35m
2026-07-21 DAL2466 - Jul 21, 00:37 UTCJul 21, 03:07 UTC2h 30m
2026-07-20 DAL2460 FSD → MSP Jul 20, 20:25 UTCJul 20, 22:50 UTC2h 25m
2026-07-20 DAL2460 FSD → MSP Jul 20, 20:25 UTCJul 20, 23:00 UTC2h 35m
2026-07-20 DAL1669 MCO → BOS Jul 20, 16:35 UTCJul 20, 17:45 UTC1h 10m
2026-07-20 DAL1745 DEN → DTW Jul 20, 12:28 UTCJul 20, 14:44 UTC2h 16m
2026-07-20 DAL1745 DEN → DTW Jul 20, 12:30 UTCJul 20, 15:00 UTC2h 30m
2026-07-19 DAL2927 MSP → DEN Jul 19, 17:45 UTCJul 19, 19:15 UTC1h 30m
2026-07-19 DAL2258 - Jul 19, 13:45 UTCJul 19, 15:10 UTC1h 25m
2026-07-19 DAL2258 DTW → MSP Jul 19, 13:43 UTCJul 19, 15:06 UTC1h 23m
2026-07-18 DAL2559 LGA → FLL Jul 18, 21:50 UTCJul 19, 00:10 UTC2h 20m
2026-07-18 DAL1379 JFK → LAX Jul 18, 19:15 UTCJul 18, 20:30 UTC1h 15m
2026-07-18 DAL729 - Jul 18, 13:35 UTCJul 18, 17:40 UTC4h 5m
2026-07-18 DAL896 MSP → PBI Jul 18, 02:09 UTCJul 18, 05:50 UTC3h 41m
2026-07-17 DAL957 JFK → SFO Jul 17, 21:25 UTCJul 18, 00:00 UTC2h 35m
2026-07-17 DAL957 JFK → SFO Jul 17, 17:15 UTCJul 17, 19:45 UTC2h 30m
2026-07-17 DAL1334 - Jul 17, 14:39 UTCJul 17, 15:55 UTC1h 15m
2026-07-17 DAL1334 ATL → FLL Jul 17, 11:30 UTCJul 17, 13:05 UTC1h 35m
2026-07-16 DAL715 - Jul 16, 21:35 UTCJul 17, 01:39 UTC4h 5m
2026-07-16 DAL326 - Jul 16, 15:49 UTCJul 16, 19:40 UTC3h 50m
2026-07-16 DAL364 LGA → ATL Jul 16, 12:14 UTCJul 16, 13:54 UTC1h 40m
2026-07-16 DAL434 ATL → LGA Jul 16, 00:20 UTCJul 16, 02:35 UTC2h 15m
2026-07-15 DAL3024 - Jul 15, 19:00 UTCJul 15, 19:40 UTC40m
2026-07-15 DAL3024 JAX → ATL Jul 15, 18:55 UTCJul 15, 19:39 UTC44m
2026-07-15 DAL3024 - Jul 15, 16:55 UTCJul 15, 17:35 UTC40m

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 N125DN page for operator, model, and routing details .

Mode-S A0669D frequently asked

What is Mode-S code A0669D?
A0669D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N125DN.
Where is Mode-S A0669D registered?
Mode-S code A0669D 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 A0669D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0669D, octal 50063235, decimal 10,512,029.
What flights does A0669D operate?
Mode-S A0669D has broadcast 20 distinct callsigns, including DAL2465, DAL957, DAL1580, DAL2849, DAL2732.