Apparatus

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sensors Mode-S transponder

A533CE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N434UT · operated by FIRST CITIZENS BANK & TRUST CO

Hex
A533CE
Octal
51231716
Decimal
10,826,702
Country
US
Tail
N434UT
Type
EC30
No current signal · last broadcast 13h ago
Flights observed
229
Distinct callsigns
1
Country
US
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S A533CE.

Country allocation

The ICAO 24-bit address A533CE 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
N434UT - 228 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 N434UT - Jul 17, 03:20 UTCJul 17, 03:34 UTC15m
2026-07-16 N434UT - Jul 16, 22:30 UTCJul 16, 22:45 UTC15m
2026-07-16 N434UT - Jul 16, 21:25 UTCJul 16, 21:55 UTC30m
2026-07-16 N434UT - Jul 16, 16:55 UTCJul 16, 17:10 UTC15m
2026-07-14 N434UT - Jul 14, 17:35 UTCJul 14, 17:55 UTC20m
2026-07-11 N434UT - Jul 11, 23:55 UTCJul 12, 00:05 UTC10m
2026-07-11 N434UT - Jul 11, 18:00 UTCJul 11, 18:10 UTC10m
2026-07-11 N434UT - Jul 11, 06:01 UTCJul 11, 06:15 UTC15m
2026-07-11 N434UT - Jul 11, 05:15 UTCJul 11, 05:25 UTC10m
2026-07-11 N434UT - Jul 11, 02:20 UTCJul 11, 03:01 UTC40m
2026-07-11 N434UT - Jul 11, 00:40 UTCJul 11, 00:50 UTC10m
2026-07-10 N434UT - Jul 10, 23:20 UTCJul 10, 23:30 UTC10m
2026-07-10 N434UT - Jul 10, 03:55 UTCJul 10, 04:45 UTC50m
2026-07-08 N434UT - Jul 8, 21:10 UTCJul 8, 21:50 UTC40m
2026-07-06 N434UT - Jul 6, 02:00 UTCJul 6, 02:15 UTC15m
2026-07-05 N434UT - Jul 5, 16:20 UTCJul 5, 16:30 UTC10m
2026-07-05 N434UT - Jul 5, 15:25 UTCJul 5, 15:50 UTC25m
2026-07-05 N434UT - Jul 5, 03:00 UTCJul 5, 03:10 UTC10m
2026-07-03 N434UT - Jul 3, 21:30 UTCJul 3, 21:45 UTC15m
2026-07-03 N434UT - Jul 3, 20:45 UTCJul 3, 20:55 UTC10m
2026-07-02 N434UT - Jul 2, 22:15 UTCJul 2, 22:30 UTC15m
2026-07-02 N434UT - Jul 2, 01:35 UTCJul 2, 01:50 UTC15m
2026-07-01 N434UT - Jul 1, 03:20 UTCJul 1, 03:55 UTC35m
2026-06-30 N434UT - Jun 30, 20:00 UTCJun 30, 20:10 UTC10m
2026-06-30 N434UT - Jun 30, 02:45 UTCJun 30, 03:20 UTC35m
2026-06-30 N434UT - Jun 30, 01:04 UTCJun 30, 01:14 UTC10m
2026-06-29 N434UT - Jun 29, 22:10 UTCJun 29, 22:19 UTC10m
2026-06-29 N434UT - Jun 29, 17:30 UTCJun 29, 17:40 UTC10m
2026-06-29 N434UT - Jun 29, 15:54 UTCJun 29, 16:35 UTC40m
2026-06-27 N434UT - Jun 27, 00:50 UTCJun 27, 01:39 UTC50m
2026-06-25 N434UT - Jun 25, 20:59 UTCJun 25, 22:29 UTC1h 30m
2026-06-25 N434UT - Jun 25, 18:04 UTCJun 25, 18:15 UTC10m
2026-06-25 N434UT - Jun 25, 01:40 UTCJun 25, 01:50 UTC10m
2026-06-24 N434UT - Jun 24, 21:24 UTCJun 24, 21:34 UTC10m
2026-06-24 N434UT - Jun 24, 20:14 UTCJun 24, 20:24 UTC10m
2026-06-24 N434UT - Jun 24, 17:29 UTCJun 24, 17:45 UTC15m
2026-06-24 N434UT - Jun 24, 01:44 UTCJun 24, 02:15 UTC30m
2026-06-24 N434UT - Jun 24, 00:25 UTCJun 24, 00:49 UTC25m
2026-06-23 N434UT - Jun 23, 21:45 UTCJun 23, 22:19 UTC35m
2026-06-23 N434UT - Jun 23, 20:24 UTCJun 23, 20:34 UTC10m
2026-06-22 N434UT - Jun 22, 01:25 UTCJun 22, 02:04 UTC40m
2026-06-21 N434UT - Jun 21, 20:00 UTCJun 21, 20:45 UTC45m
2026-06-21 N434UT - Jun 21, 08:10 UTCJun 21, 09:15 UTC1h 5m
2026-06-21 N434UT - Jun 21, 04:39 UTCJun 21, 05:30 UTC50m
2026-06-20 N434UT - Jun 20, 01:50 UTCJun 20, 02:19 UTC30m
2026-06-20 N434UT - Jun 20, 00:44 UTCJun 20, 01:09 UTC25m
2026-06-19 N434UT - Jun 19, 21:54 UTCJun 19, 22:09 UTC15m
2026-06-15 N434UT - Jun 15, 15:35 UTCJun 15, 16:15 UTC40m
2026-06-15 N434UT - Jun 15, 11:45 UTCJun 15, 11:54 UTC10m
2026-06-13 N434UT - Jun 13, 23:50 UTCJun 14, 00:20 UTC30m

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 N434UT page for operator, model, and routing details .

Mode-S A533CE frequently asked

What is Mode-S code A533CE?
A533CE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N434UT.
Where is Mode-S A533CE registered?
Mode-S code A533CE 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 A533CE broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A533CE, octal 51231716, decimal 10,826,702.
What flights does A533CE operate?
Mode-S A533CE has broadcast 1 distinct callsign, including N434UT.