sensors Mode-S transponder

A5BC1F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N469MB · CESSNA 172 Skyhawk · operated by FLORIFLT LLC

Hex
A5BC1F
Octal
51336037
Decimal
10,861,599
Country
US
Tail
N469MB
Type
C172
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 A5BC1F.

Country allocation

The ICAO 24-bit address A5BC1F 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
N469MB - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 N469MB - Apr 13, 22:30 UTCApr 13, 23:05 UTC35m
2026-04-13 N469MB - Apr 13, 21:10 UTCApr 13, 21:35 UTC25m
2026-04-13 N469MB - Apr 13, 16:15 UTCApr 13, 17:25 UTC1h 10m
2026-04-13 N469MB - Apr 13, 16:05 UTCApr 13, 16:15 UTC10m
2026-04-13 N469MB - Apr 13, 13:00 UTCApr 13, 14:40 UTC1h 40m

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 N469MB page for operator, model, and routing details .

Mode-S A5BC1F frequently asked

What is Mode-S code A5BC1F?
A5BC1F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N469MB.
Where is Mode-S A5BC1F registered?
Mode-S code A5BC1F 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 A5BC1F 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 A5BC1F, octal 51336037, decimal 10,861,599.
What flights does A5BC1F operate?
Mode-S A5BC1F has broadcast 1 distinct callsign, including N469MB.