Apparatus

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sensors Mode-S transponder

A23AB3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N24263 · operated by CAREER TRACK 2 LLC

Hex
A23AB3
Octal
50435263
Decimal
10,631,859
Country
US
Tail
N24263
Type
C172
No current signal · last broadcast 2d ago
Flights observed
193
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A23AB3.

Country allocation

The ICAO 24-bit address A23AB3 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
CXK648 - 193 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 CXK648 - Jul 12, 15:20 UTCJul 12, 16:01 UTC40m
2026-07-12 CXK648 SUS → SUS Jul 12, 14:01 UTCJul 12, 14:35 UTC35m
2026-07-12 CXK648 SUS → SUS Jul 12, 02:20 UTCJul 12, 04:35 UTC2h 15m
2026-07-10 CXK648 SUS → SUS Jul 10, 23:50 UTCJul 11, 00:40 UTC50m
2026-07-09 CXK648 - Jul 9, 10:20 UTCJul 9, 13:05 UTC2h 45m
2026-07-09 CXK648 - Jul 9, 04:20 UTCJul 9, 04:45 UTC25m
2026-07-09 CXK648 - Jul 9, 02:50 UTCJul 9, 03:25 UTC35m
2026-07-08 CXK648 SUS → SUS Jul 8, 19:05 UTCJul 8, 20:40 UTC1h 35m
2026-07-08 CXK648 SUS → SUS Jul 8, 10:10 UTCJul 8, 11:40 UTC1h 30m
2026-07-07 CXK648 SUS → SUS Jul 7, 18:35 UTCJul 7, 19:35 UTC1h 0m
2026-07-07 CXK648 - Jul 7, 15:45 UTCJul 7, 17:20 UTC1h 35m
2026-07-07 CXK648 SUS → SUS Jul 7, 13:10 UTCJul 7, 14:40 UTC1h 30m
2026-07-03 CXK648 - Jul 3, 16:05 UTCJul 3, 18:50 UTC2h 45m
2026-07-03 CXK648 - Jul 3, 12:10 UTCJul 3, 14:00 UTC1h 50m
2026-07-02 CXK648 PWK → PWK Jul 2, 22:15 UTCJul 2, 23:50 UTC1h 35m
2026-07-02 CXK648 PWK → PWK Jul 2, 17:45 UTCJul 2, 18:45 UTC1h 0m
2026-07-02 CXK648 - Jul 2, 00:20 UTCJul 2, 01:55 UTC1h 35m
2026-07-01 CXK648 PWK → PWK Jul 1, 22:30 UTCJul 1, 23:20 UTC50m
2026-07-01 CXK648 - Jul 1, 18:55 UTCJul 1, 20:30 UTC1h 35m
2026-07-01 CXK648 - Jul 1, 10:00 UTCJul 1, 11:10 UTC1h 10m
2026-06-30 CXK648 - Jun 30, 15:40 UTCJun 30, 17:05 UTC1h 25m
2026-06-30 CXK648 PWK → PWK Jun 30, 04:40 UTCJun 30, 06:55 UTC2h 15m
2026-06-30 CXK648 PWK → PWK Jun 30, 03:15 UTCJun 30, 03:40 UTC25m
2026-06-29 CXK648 - Jun 29, 22:30 UTCJun 30, 00:45 UTC2h 15m
2026-06-29 CXK648 PWK → PWK Jun 29, 19:05 UTCJun 29, 19:49 UTC45m
2026-06-28 CXK648 - Jun 28, 19:20 UTCJun 28, 20:19 UTC1h 0m
2026-06-28 CXK648 - Jun 28, 11:39 UTCJun 28, 13:00 UTC1h 20m
2026-06-26 CXK648 - Jun 26, 15:45 UTCJun 26, 17:25 UTC1h 40m
2026-06-26 CXK648 - Jun 26, 00:10 UTCJun 26, 03:39 UTC3h 30m
2026-06-25 CXK648 - Jun 25, 16:39 UTCJun 25, 19:15 UTC2h 35m
2026-06-25 CXK648 PWK → PWK Jun 25, 13:50 UTCJun 25, 15:34 UTC1h 45m
2026-06-25 CXK648 PWK → PWK Jun 25, 12:44 UTCJun 25, 13:09 UTC25m
2026-06-24 CXK648 PWK → PWK Jun 24, 02:09 UTCJun 24, 03:35 UTC1h 25m
2026-06-23 CXK648 - Jun 23, 22:44 UTCJun 24, 01:09 UTC2h 25m
2026-06-23 CXK648 PWK → PWK Jun 23, 19:19 UTCJun 23, 20:34 UTC1h 15m
2026-06-23 CXK648 PWK → PWK Jun 23, 16:20 UTCJun 23, 17:20 UTC1h 0m
2026-06-23 CXK648 - Jun 23, 13:09 UTCJun 23, 14:44 UTC1h 35m
2026-06-23 CXK648 PWK → PWK Jun 23, 09:54 UTCJun 23, 12:05 UTC2h 10m
2026-06-23 CXK648 PWK → PWK Jun 23, 00:04 UTCJun 23, 01:35 UTC1h 30m
2026-06-22 CXK648 - Jun 22, 19:19 UTCJun 22, 21:10 UTC1h 50m
2026-06-22 CXK648 PWK → PWK Jun 22, 15:54 UTCJun 22, 17:20 UTC1h 25m
2026-06-22 CXK648 PWK → PWK Jun 22, 13:29 UTCJun 22, 14:45 UTC1h 15m
2026-06-21 CXK648 PWK → PWK Jun 21, 00:59 UTCJun 21, 02:30 UTC1h 30m
2026-06-20 CXK648 PWK → PWK Jun 20, 22:14 UTCJun 20, 23:25 UTC1h 10m
2026-06-20 CXK648 - Jun 20, 19:24 UTCJun 20, 20:25 UTC1h 0m
2026-06-19 CXK648 - Jun 19, 20:34 UTCJun 19, 21:59 UTC1h 25m
2026-06-19 CXK648 PWK → PWK Jun 19, 14:39 UTCJun 19, 16:04 UTC1h 25m
2026-06-19 CXK648 PWK → PWK Jun 19, 09:49 UTCJun 19, 12:54 UTC3h 5m
2026-06-18 CXK648 - Jun 18, 21:55 UTCJun 18, 23:05 UTC1h 10m
2026-06-18 CXK648 - Jun 18, 18:50 UTCJun 18, 19:55 UTC1h 5m

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 N24263 page for operator, model, and routing details .

Mode-S A23AB3 frequently asked

What is Mode-S code A23AB3?
A23AB3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N24263.
Where is Mode-S A23AB3 registered?
Mode-S code A23AB3 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 A23AB3 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A23AB3, octal 50435263, decimal 10,631,859.
What flights does A23AB3 operate?
Mode-S A23AB3 has broadcast 1 distinct callsign, including CXK648.