sensors Mode-S transponder

A04F7E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to PT-TCG · AEROSPATIALE AS-350 Ecureuil · operated by VANS AIRCRAFT INC

Hex
A04F7E
Octal
50047576
Decimal
10,506,110
Country
US
Tail
PT-TCG
Type
AS50
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A04F7E.

Country allocation

The ICAO 24-bit address A04F7E 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
GFY1193 - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 GFY1193 - Apr 13, 22:05 UTCApr 13, 22:55 UTC50m
2026-04-13 GFY1193 - Apr 13, 17:40 UTCApr 13, 18:40 UTC1h 0m
2026-04-13 GFY1193 - Apr 13, 16:15 UTCApr 13, 16:50 UTC35m
2026-04-13 GFY1193 - Apr 13, 15:50 UTCApr 13, 16:50 UTC1h 0m
2026-04-13 GFY1193 - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-12 GFY1193 - Apr 12, 19:15 UTCApr 12, 20:15 UTC1h 0m

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 PT-TCG page for operator, model, and routing details .

Mode-S A04F7E frequently asked

What is Mode-S code A04F7E?
A04F7E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to PT-TCG.
Where is Mode-S A04F7E registered?
Mode-S code A04F7E 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 A04F7E 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 A04F7E, octal 50047576, decimal 10,506,110.
What flights does A04F7E operate?
Mode-S A04F7E has broadcast 1 distinct callsign, including GFY1193.