sensors Mode-S transponder

A0BAFA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N146WM · CESSNA 208 Caravan · operated by WATERMAKERS AIR INC

Hex
A0BAFA
Octal
50135372
Decimal
10,533,626
Country
US
Tail
N146WM
Type
C208
No current signal · last broadcast 12h ago
Flights observed
6
Distinct callsigns
6
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A0BAFA.

Country allocation

The ICAO 24-bit address A0BAFA 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 6 distinct

Callsign Airline Flights Last seen
WMA792 - 1 2026-04-14
WMA516 - 1 2026-04-13
WMA242 Watermakers Air 1 2026-04-12
WMA2113 - 1 2026-04-13
WMA2112 Watermakers Air 1 2026-04-13
WMA1534 - 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 WMA792 - Apr 14, 10:45 UTCApr 14, 11:05 UTC20m
2026-04-13 WMA1534 - Apr 13, 21:10 UTCApr 13, 21:40 UTC30m
2026-04-13 WMA516 - Apr 13, 17:00 UTCApr 13, 17:40 UTC40m
2026-04-13 WMA2113 - Apr 13, 14:50 UTCApr 13, 15:20 UTC30m
2026-04-13 WMA2112 FXE → SAQ Apr 13, 11:05 UTCApr 13, 11:30 UTC25m
2026-04-12 WMA242 FXE → TBI Apr 12, 17:25 UTCApr 12, 17:55 UTC30m

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 N146WM page for operator, model, and routing details .

Mode-S A0BAFA frequently asked

What is Mode-S code A0BAFA?
A0BAFA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N146WM.
Where is Mode-S A0BAFA registered?
Mode-S code A0BAFA 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 A0BAFA 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 A0BAFA, octal 50135372, decimal 10,533,626.
What flights does A0BAFA operate?
Mode-S A0BAFA has broadcast 6 distinct callsigns, including WMA792, WMA516, WMA242, WMA2113, WMA2112.