sensors Mode-S transponder

A2E4C7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N286FE · BOEING 767-300 · operated by FEDERAL EXPRESS CORP

Hex
A2E4C7
Octal
50562307
Decimal
10,675,399
Country
US
Tail
N286FE
Type
B763
No current signal · last broadcast 20h ago
Flights observed
3
Distinct callsigns
3
Country
US
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S A2E4C7.

Country allocation

The ICAO 24-bit address A2E4C7 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 3 distinct

Callsign Airline Flights Last seen
FDX63 FedEx Express 1 2026-04-13
FDX52 - 1 2026-04-14
FDX1552 - 1 2026-04-14

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-04-14 FDX1552 - Apr 14, 09:10 UTCApr 14, 10:30 UTC1h 20m
2026-04-14 FDX52 - Apr 14, 05:15 UTCApr 14, 05:45 UTC30m
2026-04-13 FDX63 ANC → HKG Apr 13, 00:50 UTCApr 13, 01:20 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 N286FE page for operator, model, and routing details .

Mode-S A2E4C7 frequently asked

What is Mode-S code A2E4C7?
A2E4C7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N286FE.
Where is Mode-S A2E4C7 registered?
Mode-S code A2E4C7 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 A2E4C7 broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2E4C7, octal 50562307, decimal 10,675,399.
What flights does A2E4C7 operate?
Mode-S A2E4C7 has broadcast 3 distinct callsigns, including FDX63, FDX52, FDX1552.