Apparatus

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sensors Mode-S transponder

A532DD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N434KB · operated by CIRRUS DESIGN CORP

Hex
A532DD
Octal
51231335
Decimal
10,826,461
Country
US
Tail
N434KB
No current signal · last broadcast Jul 26, 00:20 UTC
Flights observed
43
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 00:20 UTC

Last known position

Most recent position reported by Mode-S A532DD.

Country allocation

The ICAO 24-bit address A532DD 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 1 distinct

Callsign Airline Flights Last seen
N434KB - 43 2026-07-25

Recent flights last 43

DateFlightRouteTakeoffLandingDuration
2026-07-25 N434KB - Jul 25, 23:00 UTCJul 26, 00:20 UTC1h 20m
2026-07-25 N434KB - Jul 25, 20:40 UTCJul 25, 22:30 UTC1h 50m
2026-07-23 N434KB - Jul 23, 14:20 UTCJul 23, 17:35 UTC3h 15m
2026-07-21 N434KB - Jul 21, 12:20 UTCJul 21, 15:55 UTC3h 35m
2026-07-20 N434KB - Jul 20, 18:25 UTCJul 20, 18:35 UTC10m
2026-07-20 N434KB - Jul 20, 15:20 UTCJul 20, 15:35 UTC15m
2026-07-20 N434KB - Jul 20, 13:10 UTCJul 20, 14:45 UTC1h 35m
2026-07-18 N434KB - Jul 18, 18:20 UTCJul 18, 18:35 UTC15m
2026-07-18 N434KB - Jul 18, 17:00 UTCJul 18, 17:15 UTC15m
2026-07-08 N434KB - Jul 8, 17:00 UTCJul 8, 17:15 UTC15m
2026-07-08 N434KB - Jul 8, 14:30 UTCJul 8, 14:45 UTC15m
2026-06-27 N434KB - Jun 27, 19:00 UTCJun 27, 19:24 UTC25m
2026-06-27 N434KB - Jun 27, 16:30 UTCJun 27, 16:55 UTC25m
2026-06-25 N434KB - Jun 25, 21:44 UTCJun 25, 21:59 UTC15m
2026-06-25 N434KB - Jun 25, 18:29 UTCJun 25, 19:20 UTC50m
2026-06-11 N434KB - Jun 11, 17:50 UTCJun 11, 18:05 UTC15m
2026-06-08 N434KB - Jun 8, 12:35 UTCJun 8, 13:00 UTC25m
2026-06-03 N434KB - Jun 3, 14:00 UTCJun 3, 14:10 UTC10m
2026-05-23 N434KB - May 23, 17:50 UTCMay 23, 18:00 UTC10m
2026-05-23 N434KB - May 23, 16:35 UTCMay 23, 16:45 UTC10m
2026-05-19 N434KB - May 19, 17:40 UTCMay 19, 18:00 UTC20m
2026-05-19 N434KB - May 19, 14:20 UTCMay 19, 16:05 UTC1h 45m
2026-05-09 N434KB - May 9, 19:35 UTCMay 9, 20:00 UTC25m
2026-05-09 N434KB - May 9, 18:25 UTCMay 9, 18:45 UTC20m
2026-05-09 N434KB - May 9, 13:10 UTCMay 9, 13:35 UTC25m
2026-05-05 N434KB - May 5, 18:15 UTCMay 5, 18:25 UTC10m
2026-04-28 N434KB - Apr 28, 15:25 UTCApr 28, 15:35 UTC10m
2026-04-25 N434KB - Apr 25, 19:30 UTCApr 25, 19:40 UTC10m
2026-04-25 N434KB - Apr 25, 16:45 UTCApr 25, 17:10 UTC25m
2026-04-23 N434KB - Apr 23, 18:15 UTCApr 23, 18:30 UTC15m
2026-04-23 N434KB - Apr 23, 15:55 UTCApr 23, 16:15 UTC20m
2026-04-17 N434KB - Apr 17, 18:50 UTCApr 17, 19:15 UTC25m
2026-04-17 N434KB - Apr 17, 17:50 UTCApr 17, 18:05 UTC15m
2026-04-17 N434KB - Apr 17, 15:35 UTCApr 17, 16:05 UTC30m
2026-04-15 N434KB - Apr 15, 19:05 UTCApr 15, 19:35 UTC30m
2026-04-13 N434KB - Apr 13, 20:45 UTCApr 13, 22:20 UTC1h 35m
2026-04-13 N434KB - Apr 13, 19:50 UTCApr 13, 20:05 UTC15m
2026-04-13 N434KB - Apr 13, 19:35 UTCApr 13, 20:05 UTC30m
2026-04-13 N434KB - Apr 13, 17:55 UTCApr 13, 18:20 UTC25m
2026-04-13 N434KB - Apr 13, 16:35 UTCApr 13, 17:05 UTC30m
2026-04-13 N434KB - Apr 13, 15:15 UTCApr 13, 15:35 UTC20m
2026-04-13 N434KB - Apr 13, 12:20 UTCApr 13, 12:35 UTC15m
2026-04-13 N434KB - Apr 13, 12:10 UTCApr 13, 12:35 UTC25m

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 N434KB page for operator, model, and routing details .

Mode-S A532DD frequently asked

What is Mode-S code A532DD?
A532DD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N434KB.
Where is Mode-S A532DD registered?
Mode-S code A532DD 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 A532DD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 00:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A532DD, octal 51231335, decimal 10,826,461.
What flights does A532DD operate?
Mode-S A532DD has broadcast 1 distinct callsign, including N434KB.