Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AD402F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N953DZ · operated by DELTA AIR LINES INC

Hex
AD402F
Octal
53240057
Decimal
11,354,159
Country
US
Tail
N953DZ
Type
B739
No current signal · last broadcast 46m ago
Flights observed
243
Distinct callsigns
20
Country
US
Last broadcast
46m ago

Last known position

Most recent position reported by Mode-S AD402F.

Country allocation

The ICAO 24-bit address AD402F 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
DAL566 - 9 2026-07-10
DAL3112 Delta Air Lines 9 2026-04-26
DAL2152 Delta Air Lines 7 2026-04-27
DAL1363 Delta Air Lines 7 2026-04-27
DAL2999 Delta Air Lines 6 2026-04-19
DAL2545 Delta Air Lines 5 2026-04-22
DAL3136 Delta Air Lines 4 2026-04-27
DAL3122 Delta Air Lines 4 2026-04-15
DAL3056 Delta Air Lines 4 2026-04-30
DAL2001 Delta Air Lines 4 2026-04-17
DAL1236 Delta Air Lines 4 2026-04-26
DAL1206 Delta Air Lines 4 2026-04-25
DAL1146 Delta Air Lines 4 2026-04-27
DAL931 - 3 2026-07-08
DAL775 Delta Air Lines 3 2026-04-29
DAL3125 - 3 2026-04-13
DAL2711 - 3 2026-07-13
DAL2710 - 3 2026-07-12
DAL2438 Delta Air Lines 3 2026-07-04
DAL2396 - 3 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL1214 - Jul 14, 19:05 UTCJul 14, 19:45 UTC40m
2026-07-14 DAL2952 - Jul 14, 15:50 UTCJul 14, 17:00 UTC1h 10m
2026-07-14 DAL2952 ATL → IND Jul 14, 13:20 UTCJul 14, 14:20 UTC1h 0m
2026-07-14 DAL1610 - Jul 14, 11:15 UTCJul 14, 12:10 UTC55m
2026-07-14 DAL1610 SDF → ATL Jul 14, 11:13 UTCJul 14, 12:07 UTC54m
2026-07-13 DAL2831 ATL → SDF Jul 13, 22:20 UTCJul 13, 23:10 UTC50m
2026-07-13 DAL2711 - Jul 13, 19:10 UTCJul 13, 21:00 UTC1h 50m
2026-07-13 DAL2711 BWI → ATL Jul 13, 19:09 UTCJul 13, 20:56 UTC1h 47m
2026-07-13 DAL2711 - Jul 13, 15:30 UTCJul 13, 16:55 UTC1h 25m
2026-07-13 DAL3076 - Jul 13, 12:25 UTCJul 13, 13:30 UTC1h 5m
2026-07-12 DAL3119 - Jul 12, 22:30 UTCJul 12, 23:25 UTC55m
2026-07-12 DAL2710 YYZ → ATL Jul 12, 18:40 UTCJul 12, 21:00 UTC2h 20m
2026-07-12 DAL2710 YYZ → ATL Jul 12, 18:40 UTCJul 12, 21:00 UTC2h 20m
2026-07-12 DAL2883 ATL → YYZ Jul 12, 14:25 UTCJul 12, 16:05 UTC1h 40m
2026-07-12 DAL3098 SAV → ATL Jul 12, 11:15 UTCJul 12, 11:50 UTC35m
2026-07-12 DAL2860 ATL → SAV Jul 12, 05:15 UTCJul 12, 06:01 UTC45m
2026-07-12 DAL2860 ATL → SAV Jul 12, 05:15 UTCJul 12, 05:59 UTC44m
2026-07-11 DAL2337 - Jul 11, 20:20 UTCJul 11, 23:10 UTC2h 50m
2026-07-11 DAL2337 - Jul 11, 19:30 UTCJul 11, 19:40 UTC10m
2026-07-11 DAL2337 CUR → ATL Jul 11, 19:19 UTCJul 11, 23:16 UTC3h 57m
2026-07-11 DAL1817 - Jul 11, 13:55 UTCJul 11, 17:20 UTC3h 25m
2026-07-11 DAL3028 - Jul 11, 10:10 UTCJul 11, 10:45 UTC35m
2026-07-11 DAL2281 - Jul 11, 03:15 UTCJul 11, 03:50 UTC35m
2026-07-11 DAL3115 - Jul 11, 00:20 UTCJul 11, 01:35 UTC1h 15m
2026-07-10 DAL3115 ATL → SRQ Jul 10, 21:55 UTCJul 10, 23:20 UTC1h 25m
2026-07-10 DAL566 STL → ATL Jul 10, 18:30 UTCJul 10, 19:45 UTC1h 15m
2026-07-10 DAL566 STL → ATL Jul 10, 18:26 UTCJul 10, 19:41 UTC1h 15m
2026-07-10 DAL566 ATL → STL Jul 10, 15:45 UTCJul 10, 17:00 UTC1h 15m
2026-07-10 DAL1039 MSP → ATL Jul 10, 12:20 UTCJul 10, 14:20 UTC2h 0m
2026-07-10 DAL1039 MSP → ATL Jul 10, 12:18 UTCJul 10, 14:17 UTC1h 59m
2026-07-09 DAL2159 SFO → MSP Jul 9, 23:40 UTCJul 10, 02:45 UTC3h 5m
2026-07-09 DAL469 DTW → SFO Jul 9, 17:00 UTCJul 9, 22:05 UTC5h 5m
2026-07-08 DAL533 SEA → DTW Jul 8, 22:00 UTCJul 9, 01:50 UTC3h 50m
2026-07-08 DAL1656 ANC → SEA Jul 8, 16:39 UTCJul 8, 19:24 UTC2h 45m
2026-07-08 DAL1656 ANC → SEA Jul 8, 16:40 UTCJul 8, 19:30 UTC2h 50m
2026-07-08 DAL931 SEA → ANC Jul 8, 00:50 UTCJul 8, 03:50 UTC3h 0m
2026-07-07 DAL2905 LAS → SEA Jul 7, 20:35 UTCJul 7, 22:35 UTC2h 0m
2026-07-07 DAL2905 SEA → LAS Jul 7, 17:10 UTCJul 7, 19:15 UTC2h 5m
2026-07-07 DAL1418 MSP → SEA Jul 7, 12:05 UTCJul 7, 15:15 UTC3h 10m
2026-07-07 DAL2284 ATL → LAX Jul 7, 00:30 UTCJul 7, 03:10 UTC2h 40m
2026-07-06 DAL2284 ATL → LAX Jul 6, 20:25 UTCJul 6, 23:05 UTC2h 40m
2026-07-06 DAL1766 MSP → ATL Jul 6, 16:25 UTCJul 6, 18:55 UTC2h 30m
2026-07-06 DAL1766 MSP → ATL Jul 6, 12:15 UTCJul 6, 14:25 UTC2h 10m
2026-07-05 DAL2981 ATL → MSP Jul 5, 19:45 UTCJul 5, 21:50 UTC2h 5m
2026-07-05 DAL741 SMF → ATL Jul 5, 13:45 UTCJul 5, 18:10 UTC4h 25m
2026-07-05 DAL743 ATL → SMF Jul 5, 01:30 UTCJul 5, 06:00 UTC4h 30m
2026-07-04 DAL2438 MCO → CVG Jul 4, 19:35 UTCJul 4, 20:45 UTC1h 10m
2026-07-04 DAL2438 MCO → CVG Jul 4, 19:32 UTCJul 4, 20:42 UTC1h 10m
2026-07-04 DAL2438 MCO → CVG Jul 4, 16:55 UTCJul 4, 18:05 UTC1h 10m
2026-07-04 DAL2161 TPA → JFK Jul 4, 13:05 UTCJul 4, 14:40 UTC1h 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 N953DZ page for operator, model, and routing details .

Mode-S AD402F frequently asked

What is Mode-S code AD402F?
AD402F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N953DZ.
Where is Mode-S AD402F registered?
Mode-S code AD402F 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 AD402F broadcasting right now?
No active broadcast right now. Last signal was 46m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD402F, octal 53240057, decimal 11,354,159.
What flights does AD402F operate?
Mode-S AD402F has broadcast 20 distinct callsigns, including DAL566, DAL3112, DAL2152, DAL1363, DAL2999.