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
Broadcasting now · callsign DAL17 · 21,275 ft
Flights observed
318
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:25 UTC

Current position

A5325B is currently broadcasting. Map zoomed to live position.

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
DAL4 - 9 2026-07-15
DAL212 Delta Air Lines 9 2026-07-25
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
DAL203 Delta Air Lines 7 2026-07-21
DAL157 Delta Air Lines 7 2026-07-24
DAL59 Delta Air Lines 6 2026-05-29
DAL43 - 6 2026-07-13
DAL227 - 6 2026-07-16
DAL226 - 6 2026-07-16
DAL215 - 6 2026-06-29
DAL213 Delta Air Lines 6 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL257 AMS → BOS Jul 26, 13:15 UTCJul 26, 20:45 UTC7h 30m
2026-07-26 DAL48 JFK → AMS Jul 26, 02:55 UTCJul 26, 09:20 UTC6h 26m
2026-07-25 DAL213 ATH → JFK Jul 25, 13:30 UTCJul 25, 23:25 UTC9h 55m
2026-07-25 DAL212 JFK → ATH Jul 25, 01:18 UTCJul 25, 10:03 UTC8h 45m
2026-07-25 DAL212 JFK → ATH Jul 25, 01:20 UTCJul 25, 03:00 UTC1h 40m
2026-07-24 DAL157 ACC → JFK Jul 24, 11:50 UTCJul 24, 12:45 UTC55m
2026-07-24 DAL157 ACC → JFK Jul 24, 09:50 UTCJul 24, 19:52 UTC10h 2m
2026-07-23 DAL156 JFK → ACC Jul 23, 21:19 UTCJul 24, 07:18 UTC9h 59m
2026-07-23 DAL156 JFK → ACC Jul 23, 21:20 UTCJul 24, 05:05 UTC7h 45m
2026-07-23 DAL273 LIS → JFK Jul 23, 09:40 UTCJul 23, 10:25 UTC45m
2026-07-23 DAL273 LIS → JFK Jul 23, 09:40 UTCJul 23, 16:25 UTC6h 45m
2026-07-23 DAL272 JFK → LIS Jul 23, 00:15 UTCJul 23, 01:50 UTC1h 35m
2026-07-23 DAL272 JFK → LIS Jul 23, 00:14 UTCJul 23, 06:41 UTC6h 27m
2026-07-22 DAL157 ACC → JFK Jul 22, 12:25 UTCJul 22, 20:30 UTC8h 5m
2026-07-22 DAL157 ACC → JFK Jul 22, 10:26 UTCJul 22, 20:24 UTC9h 58m
2026-07-21 DAL156 JFK → ACC Jul 21, 22:03 UTCJul 22, 07:51 UTC9h 48m
2026-07-21 DAL156 JFK → ACC Jul 21, 22:05 UTCJul 22, 05:25 UTC7h 20m
2026-07-21 DAL203 ATH → JFK Jul 21, 07:15 UTCJul 21, 17:20 UTC10h 5m
2026-07-20 DAL202 JFK → ATH Jul 20, 19:25 UTCJul 20, 20:45 UTC1h 20m
2026-07-20 DAL202 JFK → ATH Jul 20, 19:25 UTCJul 21, 04:12 UTC8h 47m
2026-07-19 DAL273 LIS → JFK Jul 19, 12:15 UTCJul 19, 19:15 UTC7h 0m
2026-07-19 DAL272 JFK → LIS Jul 19, 03:15 UTCJul 19, 09:25 UTC6h 10m
2026-07-18 DAL157 ACC → JFK Jul 18, 09:38 UTCJul 18, 19:45 UTC10h 7m
2026-07-18 DAL157 - Jul 18, 04:00 UTCJul 18, 19:55 UTC15h 55m
2026-07-17 DAL157 JFK → JFK Jul 17, 21:34 UTCJul 18, 19:55 UTC22h 21m
2026-07-16 DAL226 - Jul 16, 23:49 UTCJul 17, 08:59 UTC9h 10m
2026-07-16 DAL226 GRU → JFK Jul 16, 23:48 UTCJul 17, 08:57 UTC9h 9m
2026-07-16 DAL227 - Jul 16, 06:15 UTCJul 16, 06:45 UTC30m
2026-07-16 DAL227 JFK → GRU Jul 16, 02:29 UTCJul 16, 11:26 UTC8h 57m
2026-07-16 DAL227 - Jul 16, 02:30 UTCJul 16, 03:05 UTC35m
2026-07-15 DAL4 - Jul 15, 15:30 UTCJul 15, 16:45 UTC1h 15m
2026-07-15 DAL4 LHR → JFK Jul 15, 15:29 UTCJul 15, 22:38 UTC7h 9m
2026-07-15 DAL4 LHR → JFK Jul 15, 15:29 UTCJul 15, 22:35 UTC7h 6m
2026-07-15 DAL10 MSP → LHR Jul 15, 04:20 UTCJul 15, 12:05 UTC7h 45m
2026-07-14 DAL165 - Jul 14, 13:05 UTCJul 14, 21:00 UTC7h 55m
2026-07-14 DAL165 AMS → MSP Jul 14, 13:02 UTCJul 14, 21:00 UTC7h 58m
2026-07-14 DAL144 SEA → AMS Jul 14, 01:15 UTCJul 14, 10:20 UTC9h 5m
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

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?
Yes. Mode-S A5325B is currently airborne.
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, DAL4.