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sensors Mode-S transponder

A5635D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N44605 · PIPER PA-28-140/150/160/180 · operated by LUITJENS JACOB J

Hex
A5635D
Octal
51261535
Decimal
10,838,877
Country
US
Tail
N44605
Type
P28A
No current signal · last broadcast 2h ago
Flights observed
171
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A5635D.

Country allocation

The ICAO 24-bit address A5635D 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
N44605 - 171 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 N44605 - Jul 18, 13:40 UTCJul 18, 14:25 UTC45m
2026-07-17 N44605 CSG → CSG Jul 17, 20:44 UTCJul 17, 21:15 UTC30m
2026-07-17 N44605 - Jul 17, 16:19 UTCJul 17, 16:49 UTC30m
2026-07-17 N44605 - Jul 17, 13:15 UTCJul 17, 14:35 UTC1h 20m
2026-07-17 N44605 - Jul 17, 02:50 UTCJul 17, 03:30 UTC40m
2026-07-17 N44605 - Jul 17, 02:20 UTCJul 17, 02:45 UTC25m
2026-07-16 N44605 - Jul 16, 23:35 UTCJul 17, 00:25 UTC50m
2026-07-16 N44605 - Jul 16, 21:55 UTCJul 16, 22:45 UTC50m
2026-07-16 N44605 - Jul 16, 19:50 UTCJul 16, 20:55 UTC1h 5m
2026-07-16 N44605 - Jul 16, 17:40 UTCJul 16, 18:29 UTC50m
2026-07-16 N44605 - Jul 16, 15:45 UTCJul 16, 16:15 UTC30m
2026-07-16 N44605 - Jul 16, 13:40 UTCJul 16, 14:40 UTC1h 0m
2026-07-16 N44605 - Jul 16, 01:45 UTCJul 16, 03:25 UTC1h 40m
2026-07-15 N44605 - Jul 15, 21:55 UTCJul 15, 23:00 UTC1h 5m
2026-07-15 N44605 - Jul 15, 19:50 UTCJul 15, 20:35 UTC45m
2026-07-15 N44605 - Jul 15, 17:40 UTCJul 15, 18:30 UTC50m
2026-07-15 N44605 - Jul 15, 15:05 UTCJul 15, 15:40 UTC35m
2026-07-12 N44605 - Jul 12, 19:40 UTCJul 12, 21:15 UTC1h 35m
2026-07-12 N44605 - Jul 12, 17:45 UTCJul 12, 18:35 UTC50m
2026-07-12 N44605 CSG → CSG Jul 12, 14:35 UTCJul 12, 16:10 UTC1h 35m
2026-07-12 N44605 - Jul 12, 12:50 UTCJul 12, 13:40 UTC50m
2026-07-11 N44605 - Jul 11, 18:05 UTCJul 11, 19:05 UTC1h 0m
2026-07-11 N44605 - Jul 11, 15:55 UTCJul 11, 16:35 UTC40m
2026-07-10 N44605 - Jul 10, 21:50 UTCJul 10, 22:35 UTC45m
2026-07-10 N44605 - Jul 10, 19:45 UTCJul 10, 20:50 UTC1h 5m
2026-07-10 N44605 - Jul 10, 17:45 UTCJul 10, 18:35 UTC50m
2026-07-09 N44605 - Jul 9, 17:15 UTCJul 9, 17:55 UTC40m
2026-07-09 N44605 CSG → CSG Jul 9, 13:15 UTCJul 9, 14:25 UTC1h 10m
2026-07-09 N44605 - Jul 9, 01:40 UTCJul 9, 02:50 UTC1h 10m
2026-07-08 N44605 - Jul 8, 22:25 UTCJul 8, 23:05 UTC40m
2026-07-07 N44605 - Jul 7, 21:55 UTCJul 7, 22:25 UTC30m
2026-07-07 N44605 - Jul 7, 17:20 UTCJul 7, 17:35 UTC15m
2026-07-07 N44605 - Jul 7, 15:30 UTCJul 7, 16:05 UTC35m
2026-07-07 N44605 - Jul 7, 12:10 UTCJul 7, 12:30 UTC20m
2026-07-06 N44605 - Jul 6, 20:25 UTCJul 6, 21:00 UTC35m
2026-07-06 N44605 - Jul 6, 16:25 UTCJul 6, 18:20 UTC1h 55m
2026-07-04 N44605 CSG → CSG Jul 4, 13:30 UTCJul 4, 16:00 UTC2h 30m
2026-07-03 N44605 - Jul 3, 18:55 UTCJul 3, 20:30 UTC1h 35m
2026-07-03 N44605 - Jul 3, 11:40 UTCJul 3, 13:50 UTC2h 10m
2026-07-02 N44605 - Jul 2, 22:40 UTCJul 2, 23:45 UTC1h 5m
2026-07-02 N44605 - Jul 2, 18:00 UTCJul 2, 18:10 UTC10m
2026-07-02 N44605 PIM → PIM Jul 2, 16:15 UTCJul 2, 17:10 UTC55m
2026-07-02 N44605 CSG → PIM Jul 2, 11:55 UTCJul 2, 12:15 UTC20m
2026-07-01 N44605 - Jul 1, 23:10 UTCJul 1, 23:45 UTC35m
2026-07-01 N44605 - Jul 1, 20:10 UTCJul 1, 21:05 UTC55m
2026-07-01 N44605 - Jul 1, 14:50 UTCJul 1, 16:00 UTC1h 10m
2026-06-29 N44605 - Jun 29, 21:54 UTCJun 29, 22:19 UTC25m
2026-06-29 N44605 - Jun 29, 14:25 UTCJun 29, 14:44 UTC20m
2026-06-28 N44605 - Jun 28, 21:34 UTCJun 28, 21:59 UTC25m
2026-06-28 N44605 - Jun 28, 18:44 UTCJun 28, 19:09 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 N44605 page for operator, model, and routing details .

Mode-S A5635D frequently asked

What is Mode-S code A5635D?
A5635D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N44605.
Where is Mode-S A5635D registered?
Mode-S code A5635D 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 A5635D broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5635D, octal 51261535, decimal 10,838,877.
What flights does A5635D operate?
Mode-S A5635D has broadcast 1 distinct callsign, including N44605.