sensors Mode-S transponder

A7E93B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N609FR · AIRBUS A-321neo · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A7E93B
Octal
51764473
Decimal
11,004,219
Country
US
Tail
N609FR
Type
A21N
No current signal · last broadcast 23h ago
Flights observed
11
Distinct callsigns
5
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A7E93B.

Country allocation

The ICAO 24-bit address A7E93B 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 5 distinct

Callsign Airline Flights Last seen
FFT3231 - 3 2026-04-13
FFT2279 Frontier Airlines 3 2026-04-13
FFT3941 - 2 2026-04-12
FFT3232 Frontier Airlines 2 2026-04-13
FFT1546 Frontier Airlines 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-13 FFT1546 ATL → PVD Apr 13, 22:20 UTCApr 13, 23:45 UTC1h 25m
2026-04-13 FFT3232 LAS → CLE Apr 13, 19:50 UTCApr 13, 20:50 UTC1h 0m
2026-04-13 FFT3232 LAS → CLE Apr 13, 17:30 UTCApr 13, 20:10 UTC2h 40m
2026-04-13 FFT3231 - Apr 13, 12:20 UTCApr 13, 15:30 UTC3h 10m
2026-04-13 FFT3231 - Apr 13, 11:55 UTCApr 13, 15:30 UTC3h 35m
2026-04-13 FFT3231 - Apr 13, 11:05 UTCApr 13, 15:34 UTC4h 29m
2026-04-13 FFT2279 MCO → CLE Apr 13, 04:20 UTCApr 13, 05:05 UTC45m
2026-04-13 FFT2279 MCO → CLE Apr 13, 03:55 UTCApr 13, 05:05 UTC1h 10m
2026-04-13 FFT2279 MCO → CLE Apr 13, 02:55 UTCApr 13, 04:15 UTC1h 20m
2026-04-12 FFT3941 - Apr 12, 19:43 UTCApr 12, 21:50 UTC2h 7m
2026-04-12 FFT3941 - Apr 12, 18:13 UTCApr 12, 20:50 UTC2h 37m

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 N609FR page for operator, model, and routing details .

Mode-S A7E93B frequently asked

What is Mode-S code A7E93B?
A7E93B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N609FR.
Where is Mode-S A7E93B registered?
Mode-S code A7E93B 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 A7E93B broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7E93B, octal 51764473, decimal 11,004,219.
What flights does A7E93B operate?
Mode-S A7E93B has broadcast 5 distinct callsigns, including FFT3231, FFT2279, FFT3941, FFT3232, FFT1546.