sensors Mode-S transponder

A1F48F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N225LA · AEROSPATIALE AS-350 Ecureuil · operated by LAPD AIR SUPPORT DIVISION

Hex
A1F48F
Octal
50372217
Decimal
10,613,903
Country
US
Tail
N225LA
Type
AS50
No current signal · last broadcast 12h ago
Flights observed
8
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A1F48F.

Country allocation

The ICAO 24-bit address A1F48F 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
N225LA - 8 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 N225LA - Apr 14, 09:10 UTCApr 14, 10:45 UTC1h 35m
2026-04-14 N225LA - Apr 14, 08:45 UTCApr 14, 09:05 UTC20m
2026-04-14 N225LA - Apr 14, 05:15 UTCApr 14, 06:20 UTC1h 5m
2026-04-13 N225LA - Apr 13, 20:25 UTCApr 13, 20:35 UTC10m
2026-04-13 N225LA - Apr 13, 16:15 UTCApr 13, 17:55 UTC1h 40m
2026-04-13 N225LA - Apr 13, 15:50 UTCApr 13, 17:55 UTC2h 5m
2026-04-13 N225LA - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 N225LA - Apr 13, 02:05 UTCApr 13, 03:20 UTC1h 15m

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 N225LA page for operator, model, and routing details .

Mode-S A1F48F frequently asked

What is Mode-S code A1F48F?
A1F48F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N225LA.
Where is Mode-S A1F48F registered?
Mode-S code A1F48F 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 A1F48F broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1F48F, octal 50372217, decimal 10,613,903.
What flights does A1F48F operate?
Mode-S A1F48F has broadcast 1 distinct callsign, including N225LA.