Apparatus

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sensors Mode-S transponder

AB5D52

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N831NW · AIRBUS A-330-300 · operated by DELTA AIR LINES INC

Hex
AB5D52
Octal
52656522
Decimal
11,230,546
Country
US
Tail
N831NW
Type
A333
Broadcasting now · callsign DAL185 · 36,000 ft
Flights observed
290
Distinct callsigns
20
Country
US
Last broadcast
53m ago

Current position

AB5D52 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AB5D52 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
DAL229 - 12 2026-07-04
DAL73 - 11 2026-07-05
DAL135 Delta Air Lines 11 2026-07-08
DAL72 - 10 2026-07-11
DAL134 - 9 2026-07-04
DAL105 - 9 2026-06-21
DAL82 Delta Air Lines 7 2026-05-04
DAL47 - 7 2026-07-12
DAL231 Delta Air Lines 7 2026-06-10
DAL184 - 7 2026-07-14
DAL183 - 7 2026-07-07
DAL152 Delta Air Lines 7 2026-07-03
DAL104 - 7 2026-06-23
DAL98 Delta Air Lines 6 2026-04-22
DAL83 Delta Air Lines 6 2026-05-05
DAL46 - 6 2026-07-07
DAL312 Delta Air Lines 6 2026-06-24
DAL230 Delta Air Lines 6 2026-06-10
DAL228 Delta Air Lines 6 2026-07-02
DAL206 - 6 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL185 - Jul 14, 13:30 UTCJul 14, 14:30 UTC1h 0m
2026-07-14 DAL184 JFK → MXP Jul 14, 02:58 UTCJul 14, 10:29 UTC7h 31m
2026-07-14 DAL184 - Jul 14, 03:00 UTCJul 14, 08:30 UTC5h 30m
2026-07-13 DAL185 MXP → JFK Jul 13, 15:55 UTCJul 14, 00:00 UTC8h 5m
2026-07-13 DAL184 JFK → MXP Jul 13, 02:40 UTCJul 13, 10:15 UTC7h 35m
2026-07-12 DAL47 AMS → JFK Jul 12, 08:50 UTCJul 12, 16:10 UTC7h 20m
2026-07-11 DAL72 ATL → AMS Jul 11, 21:50 UTCJul 12, 05:45 UTC7h 55m
2026-07-11 DAL9895 - Jul 11, 17:45 UTCJul 11, 18:30 UTC45m
2026-07-11 DAL9895 BNA → ATL Jul 11, 17:45 UTCJul 11, 18:27 UTC42m
2026-07-10 DAL195 BCN → BNA Jul 10, 11:15 UTCJul 10, 21:35 UTC10h 20m
2026-07-09 DAL250 BOS → BCN Jul 9, 23:50 UTCJul 10, 06:45 UTC6h 55m
2026-07-09 DAL113 - Jul 9, 11:50 UTCJul 9, 20:10 UTC8h 20m
2026-07-09 DAL206 - Jul 9, 00:20 UTCJul 9, 02:20 UTC2h 0m
2026-07-09 DAL206 DTW → FCO Jul 9, 00:17 UTCJul 9, 09:00 UTC8h 43m
2026-07-08 DAL135 AMS → DTW Jul 8, 09:11 UTCJul 8, 16:59 UTC7h 48m
2026-07-08 DAL135 AMS → DTW Jul 8, 09:15 UTCJul 8, 17:05 UTC7h 50m
2026-07-07 DAL46 - Jul 7, 22:35 UTCJul 8, 00:15 UTC1h 40m
2026-07-07 DAL46 JFK → AMS Jul 7, 22:34 UTCJul 8, 05:21 UTC6h 47m
2026-07-07 DAL183 - Jul 7, 08:45 UTCJul 7, 11:05 UTC2h 20m
2026-07-07 DAL183 FCO → JFK Jul 7, 08:44 UTCJul 7, 17:13 UTC8h 29m
2026-07-06 DAL182 JFK → FCO Jul 6, 22:10 UTCJul 7, 05:55 UTC7h 45m
2026-07-06 DAL47 - Jul 6, 08:30 UTCJul 6, 10:20 UTC1h 50m
2026-07-06 DAL47 AMS → JFK Jul 6, 08:27 UTCJul 6, 16:04 UTC7h 37m
2026-07-06 DAL47 AMS → JFK Jul 6, 08:27 UTCJul 6, 16:18 UTC7h 51m
2026-07-05 DAL72 - Jul 5, 21:30 UTCJul 6, 05:10 UTC7h 40m
2026-07-05 DAL73 - Jul 5, 09:10 UTCJul 5, 18:10 UTC9h 0m
2026-07-04 DAL134 - Jul 4, 22:55 UTCJul 5, 05:45 UTC6h 50m
2026-07-04 DAL229 CDG → DTW Jul 4, 08:55 UTCJul 4, 17:24 UTC8h 29m
2026-07-04 DAL229 - Jul 4, 09:00 UTCJul 4, 17:25 UTC8h 25m
2026-07-03 DAL152 JFK → FCO Jul 3, 21:35 UTCJul 4, 05:15 UTC7h 40m
2026-07-03 DAL153 - Jul 3, 09:15 UTCJul 3, 18:25 UTC9h 10m
2026-07-02 DAL228 CVG → CDG Jul 2, 23:35 UTCJul 3, 00:30 UTC55m
2026-07-02 DAL228 CVG → CDG Jul 2, 23:35 UTCJul 3, 06:26 UTC6h 51m
2026-07-02 DAL135 AMS → DTW Jul 2, 09:35 UTCJul 2, 17:50 UTC8h 15m
2026-07-01 DAL134 - Jul 1, 22:40 UTCJul 2, 05:45 UTC7h 5m
2026-07-01 DAL135 AMS → DTW Jul 1, 10:35 UTCJul 1, 18:55 UTC8h 20m
2026-06-30 DAL134 - Jun 30, 22:25 UTCJul 1, 05:30 UTC7h 5m
2026-06-30 DAL229 - Jun 30, 09:35 UTCJun 30, 11:05 UTC1h 30m
2026-06-30 DAL229 CDG → DTW Jun 30, 09:33 UTCJun 30, 17:47 UTC8h 14m
2026-06-30 DAL229 CDG → DTW Jun 30, 09:33 UTCJun 30, 17:37 UTC8h 4m
2026-06-29 DAL152 JFK → FCO Jun 29, 21:39 UTCJun 30, 04:30 UTC6h 51m
2026-06-29 DAL152 JFK → FCO Jun 29, 21:39 UTCJun 30, 05:25 UTC7h 46m
2026-06-29 DAL153 - Jun 29, 09:25 UTCJun 29, 17:49 UTC8h 25m
2026-06-28 DAL228 CVG → CDG Jun 28, 22:45 UTCJun 29, 06:05 UTC7h 20m
2026-06-28 DAL135 AMS → DTW Jun 28, 09:13 UTCJun 28, 17:10 UTC7h 57m
2026-06-28 DAL135 AMS → DTW Jun 28, 09:13 UTCJun 28, 16:56 UTC7h 43m
2026-06-28 DAL135 AMS → DTW Jun 28, 09:15 UTCJun 28, 11:45 UTC2h 30m
2026-06-27 DAL46 JFK → AMS Jun 27, 23:02 UTCJun 28, 05:38 UTC6h 36m
2026-06-27 DAL46 - Jun 27, 23:04 UTCJun 28, 00:04 UTC1h 0m
2026-06-27 DAL47 - Jun 27, 11:35 UTCJun 27, 18:49 UTC7h 15m

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 N831NW page for operator, model, and routing details .

Mode-S AB5D52 frequently asked

What is Mode-S code AB5D52?
AB5D52 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N831NW.
Where is Mode-S AB5D52 registered?
Mode-S code AB5D52 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 AB5D52 broadcasting right now?
Yes. Mode-S AB5D52 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB5D52, octal 52656522, decimal 11,230,546.
What flights does AB5D52 operate?
Mode-S AB5D52 has broadcast 20 distinct callsigns, including DAL229, DAL73, DAL135, DAL72, DAL134.