sensors Mode-S transponder

A40647

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N359AL · CESSNA 172 Skyhawk · operated by BOBE JOHN C, JERNIGAN BOBE KAREN R

Hex
A40647
Octal
51003107
Decimal
10,749,511
Country
US
Tail
N359AL
Type
C172
No current signal · last broadcast 1d ago
Flights observed
7
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A40647.

Country allocation

The ICAO 24-bit address A40647 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
N359AL - 7 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-13 N359AL - Apr 13, 17:00 UTCApr 13, 18:10 UTC1h 10m
2026-04-13 N359AL - Apr 13, 16:15 UTCApr 13, 16:25 UTC10m
2026-04-13 N359AL - Apr 13, 15:55 UTCApr 13, 16:25 UTC30m
2026-04-13 N359AL - Apr 13, 14:40 UTCApr 13, 16:15 UTC1h 35m
2026-04-13 N359AL - Apr 13, 12:20 UTCApr 13, 14:00 UTC1h 40m
2026-04-13 N359AL - Apr 13, 11:55 UTCApr 13, 14:00 UTC2h 5m
2026-04-13 N359AL - Apr 13, 10:50 UTCApr 13, 12:15 UTC1h 25m

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 N359AL page for operator, model, and routing details .

Mode-S A40647 frequently asked

What is Mode-S code A40647?
A40647 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N359AL.
Where is Mode-S A40647 registered?
Mode-S code A40647 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 A40647 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A40647, octal 51003107, decimal 10,749,511.
What flights does A40647 operate?
Mode-S A40647 has broadcast 1 distinct callsign, including N359AL.