sensors Mode-S transponder

A5F786

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N484AS · BELL 407 · operated by WEST STATES LEASING INC

Hex
A5F786
Octal
51373606
Decimal
10,876,806
Country
US
Tail
N484AS
Type
B407
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A5F786.

Country allocation

The ICAO 24-bit address A5F786 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
N484AS - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 N484AS RDD → RDD Apr 13, 21:45 UTCApr 13, 23:20 UTC1h 35m
2026-04-13 N484AS - Apr 13, 19:55 UTCApr 13, 20:10 UTC15m
2026-04-13 N484AS RDD → RDD Apr 13, 17:45 UTCApr 13, 18:55 UTC1h 10m
2026-04-13 N484AS - Apr 13, 16:15 UTCApr 13, 17:05 UTC50m
2026-04-13 N484AS - Apr 13, 15:50 UTCApr 13, 16:15 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 N484AS page for operator, model, and routing details .

Mode-S A5F786 frequently asked

What is Mode-S code A5F786?
A5F786 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N484AS.
Where is Mode-S A5F786 registered?
Mode-S code A5F786 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 A5F786 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 A5F786, octal 51373606, decimal 10,876,806.
What flights does A5F786 operate?
Mode-S A5F786 has broadcast 1 distinct callsign, including N484AS.