Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A235F5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N241Z · operated by ALPHA TANGO AIRCRAFT LLC

Hex
A235F5
Octal
50432765
Decimal
10,630,645
Country
US
Tail
N241Z
Type
P28A
No current signal · last broadcast 7h ago
Flights observed
109
Distinct callsigns
1
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A235F5.

Country allocation

The ICAO 24-bit address A235F5 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
CXK230 - 109 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CXK230 - Jul 17, 14:50 UTCJul 17, 16:29 UTC1h 40m
2026-07-17 CXK230 - Jul 17, 12:30 UTCJul 17, 13:45 UTC1h 15m
2026-07-16 CXK230 - Jul 16, 17:30 UTCJul 16, 17:54 UTC25m
2026-07-16 CXK230 - Jul 16, 15:40 UTCJul 16, 16:15 UTC35m
2026-07-16 CXK230 - Jul 16, 14:15 UTCJul 16, 14:45 UTC30m
2026-07-16 CXK230 USA → HCW Jul 16, 12:20 UTCJul 16, 13:34 UTC1h 15m
2026-07-16 CXK230 - Jul 16, 01:55 UTCJul 16, 03:25 UTC1h 30m
2026-07-15 CXK230 - Jul 15, 22:25 UTCJul 15, 23:40 UTC1h 15m
2026-07-15 CXK230 - Jul 15, 16:50 UTCJul 15, 17:05 UTC15m
2026-07-15 CXK230 - Jul 15, 15:15 UTCJul 15, 16:05 UTC50m
2026-07-14 CXK230 - Jul 14, 16:20 UTCJul 14, 18:05 UTC1h 45m
2026-07-14 CXK230 - Jul 14, 09:20 UTCJul 14, 09:40 UTC20m
2026-07-13 CXK230 - Jul 13, 10:50 UTCJul 13, 11:35 UTC45m
2026-07-09 CXK230 - Jul 9, 17:30 UTCJul 9, 18:05 UTC35m
2026-07-09 CXK230 - Jul 9, 15:40 UTCJul 9, 16:00 UTC20m
2026-07-09 CXK230 - Jul 9, 13:40 UTCJul 9, 14:05 UTC25m
2026-07-09 CXK230 - Jul 9, 12:35 UTCJul 9, 12:50 UTC15m
2026-07-08 CXK230 - Jul 8, 19:10 UTCJul 8, 19:40 UTC30m
2026-07-08 CXK230 - Jul 8, 17:50 UTCJul 8, 18:25 UTC35m
2026-07-08 CXK230 - Jul 8, 14:40 UTCJul 8, 15:15 UTC35m
2026-07-08 CXK230 - Jul 8, 12:50 UTCJul 8, 13:10 UTC20m
2026-07-08 CXK230 - Jul 8, 11:05 UTCJul 8, 11:55 UTC50m
2026-07-06 CXK230 - Jul 6, 14:30 UTCJul 6, 15:20 UTC50m
2026-07-02 CXK230 - Jul 2, 17:55 UTCJul 2, 19:55 UTC2h 0m
2026-07-02 CXK230 USA → USA Jul 2, 12:15 UTCJul 2, 14:15 UTC2h 0m
2026-07-01 CXK230 - Jul 1, 21:45 UTCJul 1, 21:55 UTC10m
2026-07-01 CXK230 - Jul 1, 20:15 UTCJul 1, 20:25 UTC10m
2026-07-01 CXK230 - Jul 1, 18:45 UTCJul 1, 19:05 UTC20m
2026-07-01 CXK230 - Jul 1, 16:35 UTCJul 1, 16:55 UTC20m
2026-07-01 CXK230 - Jul 1, 14:25 UTCJul 1, 15:25 UTC1h 0m
2026-07-01 CXK230 - Jul 1, 12:40 UTCJul 1, 13:15 UTC35m
2026-06-30 CXK230 - Jun 30, 23:25 UTCJun 30, 23:55 UTC30m
2026-06-30 CXK230 - Jun 30, 21:10 UTCJun 30, 21:30 UTC20m
2026-06-29 CXK230 - Jun 29, 18:05 UTCJun 29, 21:54 UTC3h 50m
2026-06-29 CXK230 - Jun 29, 11:50 UTCJun 29, 13:14 UTC1h 25m
2026-06-25 CXK230 - Jun 25, 22:54 UTCJun 25, 23:05 UTC10m
2026-06-25 CXK230 - Jun 25, 20:45 UTCJun 25, 22:10 UTC1h 25m
2026-06-25 CXK230 - Jun 25, 15:59 UTCJun 25, 16:14 UTC15m
2026-06-19 CXK230 PNE → PNE Jun 19, 18:25 UTCJun 19, 19:54 UTC1h 30m
2026-06-19 CXK230 - Jun 19, 15:34 UTCJun 19, 16:59 UTC1h 25m
2026-06-08 CXK230 - Jun 8, 21:25 UTCJun 8, 22:25 UTC1h 0m
2026-06-08 CXK230 - Jun 8, 15:10 UTCJun 8, 16:10 UTC1h 0m
2026-06-08 CXK230 PNE → PNE Jun 8, 12:40 UTCJun 8, 14:15 UTC1h 35m
2026-06-08 CXK230 PNE → PNE Jun 8, 09:50 UTCJun 8, 10:00 UTC10m
2026-06-06 CXK230 - Jun 6, 16:10 UTCJun 6, 17:40 UTC1h 30m
2026-06-06 CXK230 PNE → PNE Jun 6, 12:04 UTCJun 6, 13:25 UTC1h 20m
2026-06-05 CXK230 - Jun 5, 14:55 UTCJun 5, 16:25 UTC1h 30m
2026-06-05 CXK230 PNE → PNE Jun 5, 11:55 UTCJun 5, 13:30 UTC1h 35m
2026-06-04 CXK230 - Jun 4, 20:25 UTCJun 4, 21:50 UTC1h 25m
2026-06-04 CXK230 - Jun 4, 16:30 UTCJun 4, 17:35 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 N241Z page for operator, model, and routing details .

Mode-S A235F5 frequently asked

What is Mode-S code A235F5?
A235F5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N241Z.
Where is Mode-S A235F5 registered?
Mode-S code A235F5 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 A235F5 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A235F5, octal 50432765, decimal 10,630,645.
What flights does A235F5 operate?
Mode-S A235F5 has broadcast 1 distinct callsign, including CXK230.