Apparatus

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sensors Mode-S transponder

A23A8E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N24251 · operated by CAREER TRACK 1 LLC

Hex
A23A8E
Octal
50435216
Decimal
10,631,822
Country
US
Tail
N24251
Type
C172
Broadcasting now · callsign CXK158 · 1,600 ft
Flights observed
98
Distinct callsigns
1
Country
US
Last broadcast
20h ago

Current position

A23A8E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A23A8E 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
CXK158 - 97 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CXK158 - Jul 13, 19:05 UTCJul 13, 20:35 UTC1h 30m
2026-07-11 CXK158 - Jul 11, 18:50 UTCJul 11, 20:25 UTC1h 35m
2026-07-10 CXK158 - Jul 10, 14:00 UTCJul 10, 15:45 UTC1h 45m
2026-07-10 CXK158 - Jul 10, 03:30 UTCJul 10, 04:25 UTC55m
2026-07-10 CXK158 - Jul 10, 00:20 UTCJul 10, 01:05 UTC45m
2026-07-09 CXK158 - Jul 9, 19:15 UTCJul 9, 21:50 UTC2h 35m
2026-07-08 CXK158 - Jul 8, 18:45 UTCJul 8, 20:55 UTC2h 10m
2026-07-08 CXK158 - Jul 8, 03:00 UTCJul 8, 03:40 UTC40m
2026-07-08 CXK158 - Jul 8, 01:10 UTCJul 8, 01:30 UTC20m
2026-07-07 CXK158 - Jul 7, 20:10 UTCJul 7, 21:55 UTC1h 45m
2026-07-07 CXK158 - Jul 7, 16:45 UTCJul 7, 17:45 UTC1h 0m
2026-07-06 CXK158 - Jul 6, 21:35 UTCJul 6, 23:45 UTC2h 10m
2026-07-06 CXK158 - Jul 6, 19:05 UTCJul 6, 20:10 UTC1h 5m
2026-06-30 CXK158 - Jun 30, 18:40 UTCJun 30, 19:50 UTC1h 10m
2026-06-30 CXK158 - Jun 30, 16:55 UTCJun 30, 17:35 UTC40m
2026-06-30 CXK158 - Jun 30, 14:40 UTCJun 30, 16:15 UTC1h 35m
2026-06-30 CXK158 - Jun 30, 02:40 UTCJun 30, 03:25 UTC45m
2026-06-29 CXK158 - Jun 29, 19:39 UTCJun 29, 21:24 UTC1h 45m
2026-06-29 CXK158 - Jun 29, 16:44 UTCJun 29, 18:25 UTC1h 40m
2026-06-29 CXK158 - Jun 29, 00:29 UTCJun 29, 02:05 UTC1h 35m
2026-06-28 CXK158 - Jun 28, 19:04 UTCJun 28, 19:49 UTC45m
2026-06-28 CXK158 - Jun 28, 14:45 UTCJun 28, 16:19 UTC1h 35m
2026-06-27 CXK158 - Jun 27, 23:25 UTCJun 28, 00:45 UTC1h 20m
2026-06-27 CXK158 - Jun 27, 03:20 UTCJun 27, 04:15 UTC55m
2026-06-26 CXK158 - Jun 26, 23:55 UTCJun 27, 00:50 UTC55m
2026-06-26 CXK158 - Jun 26, 21:35 UTCJun 26, 22:19 UTC45m
2026-06-26 CXK158 - Jun 26, 18:39 UTCJun 26, 20:29 UTC1h 50m
2026-06-25 CXK158 - Jun 25, 21:40 UTCJun 25, 23:14 UTC1h 35m
2026-06-25 CXK158 - Jun 25, 18:59 UTCJun 25, 20:39 UTC1h 40m
2026-06-25 CXK158 - Jun 25, 16:05 UTCJun 25, 16:59 UTC55m
2026-06-25 CXK158 - Jun 25, 02:19 UTCJun 25, 02:30 UTC10m
2026-06-24 CXK158 - Jun 24, 22:29 UTCJun 24, 23:54 UTC1h 25m
2026-06-24 CXK158 - Jun 24, 17:10 UTCJun 24, 18:05 UTC55m
2026-06-24 CXK158 - Jun 24, 02:34 UTCJun 24, 05:05 UTC2h 30m
2026-06-23 CXK158 - Jun 23, 21:54 UTCJun 23, 22:19 UTC25m
2026-06-23 CXK158 - Jun 23, 19:00 UTCJun 23, 20:19 UTC1h 20m
2026-06-22 CXK158 - Jun 22, 00:24 UTCJun 22, 01:10 UTC45m
2026-06-21 CXK158 - Jun 21, 02:24 UTCJun 21, 04:24 UTC2h 0m
2026-06-20 CXK158 - Jun 20, 00:09 UTCJun 20, 01:50 UTC1h 40m
2026-06-19 CXK158 - Jun 19, 13:54 UTCJun 19, 15:19 UTC1h 25m
2026-06-18 CXK158 - Jun 18, 21:10 UTCJun 18, 21:35 UTC25m
2026-06-12 CXK158 - Jun 12, 00:30 UTCJun 12, 01:15 UTC45m
2026-06-11 CXK158 - Jun 11, 21:15 UTCJun 11, 21:35 UTC20m
2026-06-10 CXK158 - Jun 10, 00:05 UTCJun 10, 01:05 UTC1h 0m
2026-06-09 CXK158 - Jun 9, 20:15 UTCJun 9, 20:35 UTC20m
2026-06-09 CXK158 - Jun 9, 02:20 UTCJun 9, 04:50 UTC2h 30m
2026-06-07 CXK158 - Jun 7, 13:25 UTCJun 7, 14:35 UTC1h 10m
2026-06-04 CXK158 SGR → SGR Jun 4, 18:25 UTCJun 4, 19:45 UTC1h 20m
2026-06-03 CXK158 - Jun 3, 16:10 UTCJun 3, 16:40 UTC30m
2026-06-03 CXK158 - Jun 3, 14:50 UTCJun 3, 15:15 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 N24251 page for operator, model, and routing details .

Mode-S A23A8E frequently asked

What is Mode-S code A23A8E?
A23A8E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N24251.
Where is Mode-S A23A8E registered?
Mode-S code A23A8E 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 A23A8E broadcasting right now?
Yes. Mode-S A23A8E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A23A8E, octal 50435216, decimal 10,631,822.
What flights does A23A8E operate?
Mode-S A23A8E has broadcast 1 distinct callsign, including CXK158.