Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A5325B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N434DX · AIRBUS A-330-900 · operated by BANK OF UTAH TRUSTEE

Hex
A5325B
Octal
51231133
Decimal
10,826,331
Country
US
Tail
N434DX
Type
A339
No current signal · last broadcast 2h ago
Flights observed
282
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A5325B.

Country allocation

The ICAO 24-bit address A5325B 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
DAL17 Delta Air Lines 11 2026-07-07
DAL240 - 10 2026-07-08
DAL223 - 10 2026-07-09
DAL63 - 9 2026-07-11
DAL143 - 9 2026-07-12
DAL108 - 9 2026-07-11
DAL58 - 8 2026-07-06
DAL214 Delta Air Lines 8 2026-06-28
DAL3 Delta Air Lines 7 2026-05-28
DAL242 - 7 2026-07-11
DAL212 Delta Air Lines 7 2026-06-15
DAL59 Delta Air Lines 6 2026-05-29
DAL43 - 6 2026-07-13
DAL4 Delta Air Lines 6 2026-05-24
DAL215 - 6 2026-06-29
DAL203 - 6 2026-06-14
DAL9 Delta Air Lines 5 2026-05-23
DAL62 Delta Air Lines 5 2026-06-28
DAL42 - 5 2026-07-12
DAL243 - 5 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 DAL144 - Jul 14, 01:15 UTCJul 14, 04:05 UTC2h 50m
2026-07-13 DAL43 FCO → SEA Jul 13, 11:20 UTCJul 13, 22:35 UTC11h 15m
2026-07-13 DAL43 FCO → SEA Jul 13, 11:20 UTCJul 13, 22:47 UTC11h 27m
2026-07-12 DAL42 - Jul 12, 22:10 UTCJul 13, 08:40 UTC10h 30m
2026-07-12 DAL143 AMS → SEA Jul 12, 08:52 UTCJul 12, 18:34 UTC9h 42m
2026-07-12 DAL143 - Jul 12, 08:55 UTCJul 12, 11:45 UTC2h 50m
2026-07-11 DAL242 - Jul 11, 23:50 UTCJul 12, 06:05 UTC6h 15m
2026-07-11 DAL63 - Jul 11, 12:50 UTCJul 11, 20:00 UTC7h 10m
2026-07-11 DAL108 ATL → MAD Jul 11, 02:11 UTCJul 11, 10:09 UTC7h 58m
2026-07-11 DAL108 - Jul 11, 02:10 UTCJul 11, 05:10 UTC3h 0m
2026-07-10 DAL193 VCE → ATL Jul 10, 09:45 UTCJul 10, 20:00 UTC10h 15m
2026-07-10 DAL193 VCE → ATL Jul 10, 09:40 UTCJul 10, 19:59 UTC10h 19m
2026-07-09 DAL192 ATL → VCE Jul 9, 22:16 UTCJul 10, 07:22 UTC9h 6m
2026-07-09 DAL192 - Jul 9, 22:20 UTCJul 10, 00:45 UTC2h 25m
2026-07-09 DAL223 ATH → ATL Jul 9, 06:50 UTCJul 9, 18:30 UTC11h 40m
2026-07-08 DAL240 BOS → ATH Jul 8, 19:44 UTCJul 9, 04:27 UTC8h 43m
2026-07-08 DAL240 - Jul 8, 19:45 UTCJul 9, 00:45 UTC5h 0m
2026-07-08 DAL243 - Jul 8, 09:45 UTCJul 8, 16:55 UTC7h 10m
2026-07-07 DAL134 - Jul 7, 22:50 UTCJul 8, 06:25 UTC7h 35m
2026-07-07 DAL134 DTW → AMS Jul 7, 22:47 UTCJul 8, 06:31 UTC7h 44m
2026-07-07 DAL17 LHR → DTW Jul 7, 16:50 UTCJul 7, 17:40 UTC50m
2026-07-07 DAL17 LHR → DTW Jul 7, 10:10 UTCJul 7, 16:45 UTC6h 35m
2026-07-07 DAL17 LHR → DTW Jul 7, 10:07 UTCJul 7, 17:27 UTC7h 20m
2026-07-06 DAL58 BOS → LHR Jul 6, 23:25 UTCJul 7, 05:25 UTC6h 0m
2026-07-06 DAL257 AMS → BOS Jul 6, 13:05 UTCJul 6, 20:20 UTC7h 15m
2026-07-06 DAL136 - Jul 6, 03:15 UTCJul 6, 08:45 UTC5h 30m
2026-07-06 DAL136 DTW → AMS Jul 6, 03:10 UTCJul 6, 10:12 UTC7h 2m
2026-07-05 DAL137 AMS → DTW Jul 5, 13:05 UTCJul 5, 21:10 UTC8h 5m
2026-07-05 DAL144 - Jul 5, 01:05 UTCJul 5, 04:30 UTC3h 25m
2026-07-05 DAL144 SEA → AMS Jul 5, 01:00 UTCJul 5, 09:51 UTC8h 51m
2026-07-04 DAL43 LAX → SYD Jul 4, 10:40 UTCJul 4, 22:20 UTC11h 40m
2026-07-04 DAL43 LAX → SYD Jul 4, 10:39 UTCJul 4, 22:19 UTC11h 40m
2026-07-03 DAL42 SYD → LAX Jul 3, 21:33 UTCJul 4, 08:21 UTC10h 48m
2026-07-03 DAL42 SYD → LAX Jul 3, 21:35 UTCJul 3, 23:35 UTC2h 0m
2026-07-03 DAL143 AMS → SEA Jul 3, 09:41 UTCJul 3, 19:12 UTC9h 31m
2026-07-03 DAL143 - Jul 3, 09:45 UTCJul 3, 10:45 UTC1h 0m
2026-07-03 DAL242 BOS → AMS Jul 3, 00:38 UTCJul 3, 06:42 UTC6h 4m
2026-07-03 DAL242 - Jul 3, 00:40 UTCJul 3, 06:35 UTC5h 55m
2026-07-02 DAL63 FCO → ATL Jul 2, 20:55 UTCJul 2, 21:00 UTC5m
2026-07-02 DAL63 FCO → ATL Jul 2, 13:00 UTCJul 2, 19:50 UTC6h 50m
2026-07-02 DAL63 FCO → ATL Jul 2, 12:56 UTCJul 2, 19:51 UTC6h 55m
2026-07-02 DAL108 ATL → MAD Jul 2, 02:16 UTCJul 2, 10:32 UTC8h 16m
2026-07-02 DAL108 ATL → MAD Jul 2, 02:20 UTCJul 2, 10:35 UTC8h 15m
2026-07-01 DAL85 - Jul 1, 14:15 UTCJul 1, 16:05 UTC1h 50m
2026-07-01 DAL85 CDG → ATL Jul 1, 14:13 UTCJul 1, 23:23 UTC9h 10m
2026-07-01 DAL85 CDG → ATL Jul 1, 14:13 UTCJul 1, 23:34 UTC9h 21m
2026-07-01 DAL84 ATL → CDG Jul 1, 02:20 UTCJul 1, 10:20 UTC8h 0m
2026-06-30 DAL67 FCO → ATL Jun 30, 12:00 UTCJun 30, 22:05 UTC10h 5m
2026-06-29 DAL66 ATL → FCO Jun 29, 23:25 UTCJun 30, 08:25 UTC9h 1m
2026-06-29 DAL66 ATL → FCO Jun 29, 23:20 UTCJun 30, 08:16 UTC8h 56m

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 N434DX page for operator, model, and routing details .

Mode-S A5325B frequently asked

What is Mode-S code A5325B?
A5325B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N434DX.
Where is Mode-S A5325B registered?
Mode-S code A5325B 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 A5325B broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5325B, octal 51231133, decimal 10,826,331.
What flights does A5325B operate?
Mode-S A5325B has broadcast 20 distinct callsigns, including DAL17, DAL240, DAL223, DAL63, DAL143.