Apparatus

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sensors Mode-S transponder

AB40F8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N824NW · AIRBUS A-330-300 · operated by DELTA AIR LINES INC

Hex
AB40F8
Octal
52640370
Decimal
11,223,288
Country
US
Tail
N824NW
Type
A333
No current signal · last broadcast Jul 26, 08:25 UTC
Flights observed
312
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 08:25 UTC

Last known position

Most recent position reported by Mode-S AB40F8.

Country allocation

The ICAO 24-bit address AB40F8 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
DAL150 Delta Air Lines 11 2026-07-25
DAL72 Delta Air Lines 10 2026-07-17
DAL203 Delta Air Lines 10 2026-05-06
DAL195 - 10 2026-07-12
DAL128 Delta Air Lines 10 2026-06-25
DAL75 - 9 2026-07-05
DAL250 - 9 2026-07-11
DAL73 Delta Air Lines 8 2026-07-24
DAL47 - 8 2026-07-18
DAL163 - 8 2026-07-05
DAL83 - 7 2026-06-19
DAL82 Delta Air Lines 7 2026-04-30
DAL74 - 7 2026-07-03
DAL237 Delta Air Lines 7 2026-05-18
DAL206 - 7 2026-07-11
DAL202 Delta Air Lines 7 2026-05-05
DAL113 - 7 2026-07-11
DAL85 - 6 2026-07-14
DAL84 - 6 2026-07-14
DAL49 Delta Air Lines 6 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 DAL105 ATL → GRU Jul 25, 23:20 UTCJul 26, 03:55 UTC4h 35m
2026-07-25 DAL105 ATL → GRU Jul 25, 23:19 UTCJul 26, 08:15 UTC8h 56m
2026-07-25 DAL150 LIM → ATL Jul 25, 06:06 UTCJul 25, 12:22 UTC6h 16m
2026-07-24 DAL151 ATL → LIM Jul 24, 21:00 UTCJul 25, 06:50 UTC9h 50m
2026-07-24 DAL73 AMS → ATL Jul 24, 08:55 UTCJul 24, 17:40 UTC8h 45m
2026-07-23 DAL46 JFK → AMS Jul 23, 23:13 UTCJul 24, 05:35 UTC6h 22m
2026-07-23 DAL46 JFK → AMS Jul 23, 23:15 UTCJul 24, 04:00 UTC4h 45m
2026-07-23 DAL183 FCO → JFK Jul 23, 09:25 UTCJul 23, 17:55 UTC8h 30m
2026-07-22 DAL182 JFK → FCO Jul 22, 22:10 UTCJul 22, 23:40 UTC1h 30m
2026-07-22 DAL182 JFK → FCO Jul 22, 22:09 UTCJul 23, 06:00 UTC7h 51m
2026-07-22 DAL231 CDG → RDU Jul 22, 11:10 UTCJul 22, 19:40 UTC8h 30m
2026-07-22 DAL231 CDG → RDU Jul 22, 10:47 UTCJul 22, 19:32 UTC8h 45m
2026-07-21 DAL230 RDU → CDG Jul 21, 23:48 UTCJul 22, 07:52 UTC8h 4m
2026-07-21 DAL230 RDU → CDG Jul 21, 23:45 UTCJul 22, 01:25 UTC1h 40m
2026-07-21 DAL183 FCO → JFK Jul 21, 08:45 UTCJul 21, 11:15 UTC2h 30m
2026-07-21 DAL183 FCO → JFK Jul 21, 08:44 UTCJul 21, 17:30 UTC8h 46m
2026-07-20 DAL182 JFK → FCO Jul 20, 22:03 UTCJul 21, 05:52 UTC7h 49m
2026-07-20 DAL182 JFK → FCO Jul 20, 22:05 UTCJul 21, 04:00 UTC5h 55m
2026-07-20 DAL183 FCO → JFK Jul 20, 09:00 UTCJul 20, 17:45 UTC8h 45m
2026-07-20 DAL183 FCO → JFK Jul 20, 08:57 UTCJul 20, 17:46 UTC8h 49m
2026-07-19 DAL182 JFK → FCO Jul 19, 22:28 UTCJul 20, 06:22 UTC7h 54m
2026-07-19 DAL182 JFK → FCO Jul 19, 22:30 UTCJul 20, 06:00 UTC7h 30m
2026-07-18 DAL47 - Jul 18, 09:20 UTCJul 18, 16:45 UTC7h 25m
2026-07-17 DAL72 ATL → AMS Jul 17, 22:10 UTCJul 18, 06:30 UTC8h 21m
2026-07-17 DAL150 - Jul 17, 06:10 UTCJul 17, 12:04 UTC5h 55m
2026-07-16 DAL151 - Jul 16, 20:19 UTCJul 17, 02:34 UTC6h 15m
2026-07-16 DAL150 - Jul 16, 05:50 UTCJul 16, 11:50 UTC6h 0m
2026-07-15 DAL151 - Jul 15, 20:35 UTCJul 16, 02:35 UTC6h 0m
2026-07-14 DAL85 - Jul 14, 14:30 UTCJul 14, 23:25 UTC8h 54m
2026-07-14 DAL84 - Jul 14, 02:10 UTCJul 14, 10:20 UTC8h 10m
2026-07-13 DAL85 - Jul 13, 14:10 UTCJul 13, 23:05 UTC8h 55m
2026-07-13 DAL84 ATL → CDG Jul 13, 02:15 UTCJul 13, 10:35 UTC8h 20m
2026-07-12 DAL195 BCN → ATL Jul 12, 09:10 UTCJul 12, 18:35 UTC9h 25m
2026-07-11 DAL250 - Jul 11, 23:50 UTCJul 12, 06:01 UTC6h 10m
2026-07-11 DAL250 BOS → BCN Jul 11, 23:50 UTCJul 12, 06:46 UTC6h 56m
2026-07-11 DAL113 - Jul 11, 11:35 UTCJul 11, 20:00 UTC8h 25m
2026-07-11 DAL206 - Jul 11, 00:20 UTCJul 11, 08:01 UTC7h 40m
2026-07-11 DAL206 DTW → FCO Jul 11, 00:19 UTCJul 11, 08:56 UTC8h 37m
2026-07-10 DAL229 - Jul 10, 09:35 UTCJul 10, 17:50 UTC8h 15m
2026-07-09 DAL152 MSP → CDG Jul 9, 22:55 UTCJul 10, 06:40 UTC7h 45m
2026-07-09 DAL153 - Jul 9, 09:15 UTCJul 9, 17:45 UTC8h 30m
2026-07-08 DAL228 - Jul 8, 22:55 UTCJul 9, 06:00 UTC7h 5m
2026-07-08 DAL228 DTW → CDG Jul 8, 22:54 UTCJul 9, 06:16 UTC7h 22m
2026-07-08 DAL207 - Jul 8, 09:20 UTCJul 8, 10:00 UTC40m
2026-07-08 DAL207 FCO → DTW Jul 8, 09:19 UTCJul 8, 18:25 UTC9h 6m
2026-07-07 DAL112 - Jul 7, 23:15 UTCJul 8, 06:45 UTC7h 30m
2026-07-07 DAL277 MXP → BOS Jul 7, 12:40 UTCJul 7, 20:25 UTC7h 45m
2026-07-07 DAL276 BOS → MXP Jul 7, 01:52 UTCJul 7, 09:02 UTC7h 10m
2026-07-07 DAL276 - Jul 7, 01:55 UTCJul 7, 08:00 UTC6h 5m
2026-07-06 DAL251 NAS → MIA Jul 6, 15:30 UTCJul 6, 23:05 UTC7h 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 N824NW page for operator, model, and routing details .

Mode-S AB40F8 frequently asked

What is Mode-S code AB40F8?
AB40F8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N824NW.
Where is Mode-S AB40F8 registered?
Mode-S code AB40F8 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 AB40F8 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 08:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB40F8, octal 52640370, decimal 11,223,288.
What flights does AB40F8 operate?
Mode-S AB40F8 has broadcast 20 distinct callsigns, including DAL150, DAL72, DAL203, DAL195, DAL128.