sensors Mode-S transponder

A7FE9A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N614LF · operated by LUNKEN FLIGHT TRAINING CENTER LLC

Hex
A7FE9A
Octal
51777232
Decimal
11,009,690
Country
US
Tail
N614LF
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 A7FE9A.

Country allocation

The ICAO 24-bit address A7FE9A 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
N614LF - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 N614LF - Apr 13, 22:50 UTCApr 13, 23:40 UTC50m
2026-04-13 N614LF LUK → LUK Apr 13, 20:55 UTCApr 13, 21:45 UTC50m
2026-04-13 N614LF LUK → LUK Apr 13, 16:40 UTCApr 13, 17:45 UTC1h 5m
2026-04-13 N614LF LUK → LUK Apr 13, 14:45 UTCApr 13, 15:10 UTC25m
2026-04-13 N614LF LUK → LUK Apr 13, 12:30 UTCApr 13, 13:05 UTC35m
2026-04-12 N614LF LUK → LUK Apr 12, 18:40 UTCApr 12, 20:00 UTC1h 20m

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 N614LF page for operator, model, and routing details .

Mode-S A7FE9A frequently asked

What is Mode-S code A7FE9A?
A7FE9A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N614LF.
Where is Mode-S A7FE9A registered?
Mode-S code A7FE9A 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 A7FE9A 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 A7FE9A, octal 51777232, decimal 11,009,690.
What flights does A7FE9A operate?
Mode-S A7FE9A has broadcast 1 distinct callsign, including N614LF.