Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A6CE65

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N538CP · CESSNA T182 Turbo Skylane · operated by CIVIL AIR PATROL

Hex
A6CE65
Octal
51547145
Decimal
10,931,813
Country
US
Tail
N538CP
Type
C82S
No current signal · last broadcast 28d ago
Flights observed
38
Distinct callsigns
1
Country
US
Last broadcast
28d ago

Last known position

Most recent position reported by Mode-S A6CE65.

Country allocation

The ICAO 24-bit address A6CE65 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
CAP4638 - 38 2026-07-26

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-26 CAP4638 - Jul 26, 21:05 UTCJul 26, 21:15 UTC10m
2026-07-25 CAP4638 - Jul 25, 04:20 UTCJul 25, 05:15 UTC55m
2026-07-24 CAP4638 - Jul 24, 20:50 UTCJul 24, 21:30 UTC40m
2026-07-21 CAP4638 PWT → PWT Jul 21, 20:50 UTCJul 21, 21:50 UTC1h 0m
2026-07-20 CAP4638 - Jul 20, 03:25 UTCJul 20, 04:40 UTC1h 15m
2026-07-20 CAP4638 - Jul 20, 01:35 UTCJul 20, 02:55 UTC1h 20m
2026-07-19 CAP4638 - Jul 19, 23:10 UTCJul 20, 00:40 UTC1h 30m
2026-07-19 CAP4638 - Jul 19, 20:50 UTCJul 19, 22:00 UTC1h 10m
2026-07-19 CAP4638 - Jul 19, 14:20 UTCJul 19, 15:00 UTC40m
2026-07-19 CAP4638 - Jul 19, 01:40 UTCJul 19, 01:55 UTC15m
2026-07-19 CAP4638 MVW → BFI Jul 19, 00:50 UTCJul 19, 01:30 UTC40m
2026-07-18 CAP4638 - Jul 18, 22:45 UTCJul 18, 23:50 UTC1h 5m
2026-07-18 CAP4638 MVW → MVW Jul 18, 20:45 UTCJul 18, 21:55 UTC1h 10m
2026-07-18 CAP4638 PWT → MVW Jul 18, 15:55 UTCJul 18, 16:40 UTC45m
2026-07-18 CAP4638 - Jul 18, 03:55 UTCJul 18, 04:15 UTC20m
2026-07-18 CAP4638 - Jul 18, 01:05 UTCJul 18, 03:00 UTC1h 56m
2026-07-17 CAP4638 PWT → PWT Jul 17, 22:49 UTCJul 17, 23:30 UTC40m
2026-07-17 CAP4638 - Jul 17, 20:55 UTCJul 17, 21:39 UTC45m
2026-07-17 CAP4638 - Jul 17, 17:05 UTCJul 17, 18:50 UTC1h 45m
2026-07-17 CAP4638 PWT → PAE Jul 17, 15:29 UTCJul 17, 16:00 UTC30m
2026-07-16 CAP4638 PWT → PWT Jul 16, 01:50 UTCJul 16, 03:00 UTC1h 10m
2026-07-16 CAP4638 - Jul 16, 00:00 UTCJul 16, 00:20 UTC20m
2026-07-15 CAP4638 - Jul 15, 22:45 UTCJul 15, 23:30 UTC45m
2026-07-15 CAP4638 - Jul 15, 20:50 UTCJul 15, 21:30 UTC40m
2026-07-15 CAP4638 - Jul 15, 18:55 UTCJul 15, 20:05 UTC1h 10m
2026-07-15 CAP4638 - Jul 15, 17:35 UTCJul 15, 18:20 UTC45m
2026-07-10 CAP4638 - Jul 10, 05:10 UTCJul 10, 05:50 UTC40m
2026-07-10 CAP4638 - Jul 10, 01:25 UTCJul 10, 01:45 UTC20m
2026-07-10 CAP4638 - Jul 10, 00:25 UTCJul 10, 01:15 UTC50m
2026-07-09 CAP4638 - Jul 9, 23:05 UTCJul 9, 23:35 UTC30m
2026-07-09 CAP4638 - Jul 9, 21:30 UTCJul 9, 22:50 UTC1h 20m
2026-07-09 CAP4638 - Jul 9, 20:15 UTCJul 9, 20:45 UTC30m
2026-07-09 CAP4638 - Jul 9, 17:55 UTCJul 9, 18:15 UTC20m
2026-07-09 CAP4638 - Jul 9, 03:35 UTCJul 9, 04:35 UTC1h 0m
2026-05-17 CAP4638 - May 17, 17:55 UTCMay 17, 18:25 UTC30m
2026-05-01 CAP4638 - May 1, 16:30 UTCMay 1, 17:15 UTC45m
2026-04-28 CAP4638 - Apr 28, 21:30 UTCApr 28, 22:00 UTC30m
2026-04-18 CAP4638 - Apr 18, 02:35 UTCApr 18, 03:05 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 N538CP page for operator, model, and routing details .

Mode-S A6CE65 frequently asked

What is Mode-S code A6CE65?
A6CE65 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N538CP.
Where is Mode-S A6CE65 registered?
Mode-S code A6CE65 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 A6CE65 broadcasting right now?
No active broadcast right now. Last signal was 28d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6CE65, octal 51547145, decimal 10,931,813.
What flights does A6CE65 operate?
Mode-S A6CE65 has broadcast 1 distinct callsign, including CAP4638.